CN115041310A - High-efficient cyclone with spray set - Google Patents
High-efficient cyclone with spray set Download PDFInfo
- Publication number
- CN115041310A CN115041310A CN202210473738.4A CN202210473738A CN115041310A CN 115041310 A CN115041310 A CN 115041310A CN 202210473738 A CN202210473738 A CN 202210473738A CN 115041310 A CN115041310 A CN 115041310A
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- Prior art keywords
- ash bucket
- water
- water outlet
- cyclone separator
- pipeline
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- 239000007921 spray Substances 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000002245 particle Substances 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000002829 reductive effect Effects 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 19
- 239000007789 gas Substances 0.000 description 19
- 239000000779 smoke Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
- B04C5/18—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations with auxiliary fluid assisting discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
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- Cyclones (AREA)
Abstract
The invention relates to a high-efficiency cyclone separator with a spraying device, which comprises a cylinder body, an ash bucket and the spraying device, wherein the ash bucket and the spraying device are arranged at the lower end of the cylinder body, the spraying device comprises a spray head which is arranged above the inner part of the ash bucket and is used for spraying solid particles gathered in the ash bucket, the outlet direction of water flow in the spray head is arranged towards the upper part of the ash bucket, a water outlet channel for spraying the water flow is arranged on the spray head, the water outlet channel spirally extends from the lower end to the upper end of the spray head along the outer peripheral surface of the spray head, the water outlet channel comprises a plurality of first water outlet holes and a plurality of second water outlet holes, the cross sectional areas of the first water outlet holes and the second water outlet holes are different, and the first water outlet holes and the second water outlet holes are sequentially arranged at intervals in a staggered mode along the length extending direction of the water outlet channel. According to the cyclone separator, water flow is sprayed into the ash bucket, the probability that solid particles in the ash bucket float upwards along with air flow can be greatly reduced by means of the condensation of water molecules, the phenomenon of ash bucket back mixing can be effectively weakened, and therefore the separation efficiency of the cyclone separator can be improved.
Description
Technical Field
The invention relates to the technical field of dust removal systems, in particular to a high-efficiency cyclone separator with a spraying device.
Background
As shown in fig. 1, the cyclone separator generally comprises a cylinder 1 ' and an ash bucket 2 ' disposed below the cylinder 1 ', wherein the cylinder 1 ' has a cylindrical upper portion and a conical lower portion, and the cylinder 1 ' has an inlet pipe 3 ' and an outlet pipe 4 ' disposed at the upper portion thereof. The cyclone separator works by rotating gas containing solid particles and separating gas from solid by means of centrifugal force. The device can effectively remove useless solid particles and liquid drops in gas under the condition of relatively low pressure, and can keep higher efficiency under high-pressure and ultrahigh-pressure environments.
The flow field inside the cyclone separator is complex strong-rotation turbulent flow, and the actual separation process of the cyclone separator is very complicated due to the extremely unstable rotation motion of the airflow and the strong direction difference of the turbulent flow. In the case of the conventional cyclone separator, a part of airflow enters the dust hopper 2 ' along the dust discharge port 11 ' at the bottom of the cylinder 1 ', but because the bottom of the dust hopper 2 ' is sealed, the airflow is inevitably reversed upwards, which will stir up the separated particles and bring the finer particles into the inner cyclone flow in the dust hopper 2 ' again, so that the ' dust hopper back mixing ' is generated, and the stability of the separation performance of the whole cyclone separator is affected. When the airflow rises and returns to the cylinder 1 ', a phenomenon of ' dust outlet back mixing ' is caused at the same time, and the improvement of the efficiency of the cyclone separator is seriously influenced by the occurrence of the back mixing phenomenon, as shown in figure 2.
Disclosure of Invention
The invention aims to provide a high-efficiency cyclone separator with a spraying device, which sprays solid particles gathered in an ash bucket to enable smoke dust particles and water molecules in smoke gas or enable the particles to be combined with each other to gradually form larger particles to be trapped.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a high-efficient cyclone with spray set, includes the barrel and sets up the ash bucket of the lower extreme of barrel still includes spray set, spray set is including setting up the inside top of ash bucket is used for to gathering in the solid particle in the ash bucket sprays the shower nozzle, the export direction orientation of rivers in the shower nozzle the upper portion of ash bucket sets up, be provided with on the shower nozzle and supply rivers spun exhalant canal, exhalant canal follows the peripheral follow in the outside of shower nozzle the lower extreme of shower nozzle extends to the upper end spiral shell, exhalant canal includes a plurality of first apopores and a plurality of second apopores, first apopore with the cross-sectional area of second apopore is different, follows the length extending direction of exhalant canal, first apopore with the staggered interval setting in proper order of second apopore.
Preferably, the ash bucket comprises a first ash bucket positioned at the upper part and a second ash bucket positioned at the lower part, the first ash bucket is cylindrical, the second ash bucket is conical, the large end of the second ash bucket is sequentially connected with the lower end of the first ash bucket, and the center of the spray head is positioned at the 1/3 height position of the first ash bucket from top to bottom. Therefore, the problem that the ash bucket of the cyclone separator has an ash ring can be effectively inhibited.
Preferably, the spraying devices are provided with two groups, and the spray heads of the two groups of spraying devices are symmetrically arranged in the ash bucket.
Further, the barrel is provided with an inlet for gas to enter, and along the gas flow direction, the position of one group of the spray heads in the circumferential direction of the ash bucket is spaced from the inlet by 135 degrees, and the position of the other group of the spray heads in the circumferential direction of the ash bucket is spaced from the inlet by 315 degrees. Therefore, the abrasion influence of the ash ring on the spray head can be avoided while the ash ring on the ash bucket is restrained.
Preferably, the water outlet channels are arranged in parallel, and the helix angle of each water outlet channel is 45 degrees.
Preferably, the cross section of the first water outlet hole is rectangular, and the cross section of the second water outlet hole is circular. The processing technology of the spray head is simple, and the spray head is convenient to process and manufacture.
Preferably, the spraying device further comprises a water tank, a water pump and a water inlet pipeline, the water tank and the water pump are arranged outside the ash bucket, a water inlet of the water pump is connected to the water tank, one end of the water inlet pipeline is connected with a water outlet of the water pump, and the other end of the water inlet pipeline extends into the ash bucket and is connected with the spray head.
Furthermore, the water inlet pipeline comprises a first pipeline and a second pipeline, one end of the first pipeline is communicated with the water outlet of the water pump, and the other end of the second pipeline extends into the ash bucket and is connected with the spray head.
Still further, the pipe diameter of the first pipeline is greater than the pipe diameter of the second pipeline. This increases the pressure of the water stream entering the spray head, thereby increasing the spraying effect.
Preferably, the water inlet pipeline is detachably connected with the spray head, so that the spray head is convenient to detach and replace.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
(1) according to the cyclone separator, water flow is sprayed into the ash bucket, the probability that solid particles in the ash bucket float upwards along with air flow can be greatly reduced by means of the condensation of water molecules, the phenomenon of 'ash bucket back mixing' can be effectively weakened, and therefore the separation efficiency of the cyclone separator can be improved.
(2) The invention can play a certain role in inhibiting harmful gases which are easily dissolved in water in the flue gas by spraying water flow into the ash bucket, and can save the investment of gas purification equipment or reduce the load of the gas purification equipment to a certain extent.
(3) The invention has certain weakening effect on the flow field in the ash bucket by spraying water flow into the ash bucket, and can reduce the impact of large-diameter particles on the bottom of the cyclone separator, thereby playing a certain protection effect on air leakage of the ash bucket.
Drawings
FIG. 1 is a schematic diagram of a cyclone separator according to the prior art;
FIG. 2 is a schematic illustration of the back mixing of a cyclone ash hopper of the prior art;
FIG. 3 is a schematic front perspective view of the high efficiency cyclone separator with a spray device of the present embodiment;
FIG. 4 is a schematic top view of the high efficiency cyclone separator with a spray device of the present embodiment;
FIG. 5 is an enlarged view of a portion of FIG. 3 at A;
FIG. 6 is a schematic top view of the ash bucket of the present embodiment;
FIG. 7 is one of the schematic structural views (front view) of the ash ring of the ash bucket;
FIG. 8 is a second schematic structural view (bottom view) of the ash ring of the ash bucket;
fig. 9 is a schematic structural diagram of the sprinkler of the embodiment after being connected with a second pipeline.
Wherein: 1. a cylinder body; 11. a first cylinder; 111. an inlet; 12. a second cylinder; 121. a dust exhaust port; 2. an ash hopper; 21. a first ash hopper; 22. a second ash hopper; 3. an air inlet pipe; 4. a gas lift pipe; 5. a collection box; 61. a water tank; 62. a water pump; 63. a water inlet pipe; 631. a first conduit; 632. a second conduit; 632a, a straight pipe; 632b, connecting bent pipes; 632c, a connecting flange; 64. a spray head; 641. a first water outlet hole; 642. and a second water outlet.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
As shown in fig. 3 and 4, the present invention provides a high efficiency cyclone separator with a spray device, comprising a cylinder 1, an ash bucket 2 and a spray device.
The barrel 1 comprises a first barrel 11 located on the upper portion and a second barrel 12 located on the lower portion, the first barrel 11 is cylindrical, the second barrel 12 is conical, the large end of the second barrel 12 is sequentially connected with the lower end of the first barrel 11, the small end of the second barrel 12 is connected with the top of the ash bucket 2, and the diameter of the small end of the second barrel 12 is smaller than that of the top of the ash bucket 2.
The upper part of the first cylinder 11 is provided with an inlet 111 for gas to enter, and the cyclone separator further comprises an inlet pipe 3 connected to the position of the inlet 111 and tangential to the first cylinder 11 and a riser pipe 4 arranged at the top of the first cylinder 11, as shown in fig. 3.
The lower end of the second cylinder 12 is provided with a dust outlet 121, so that the solid particles separated by entering the cylinder 1 can enter the interior of the dust hopper 2 through the dust outlet 121, as shown in fig. 3 and 5.
As shown in fig. 3 and 5, the hopper 2 includes a first hopper 21 positioned at an upper portion and a second hopper 22 positioned at a lower portion, the first hopper 21 is cylindrical, the second hopper 22 is conical, and a large end of the second hopper 22 is sequentially connected to a lower end of the first hopper 11. The cyclone separator also comprises a collecting box 5 arranged below the second hopper 22.
As shown in fig. 3 and 5, the shower apparatus includes a water tank 61, a water pump 62, a water inlet pipe 63, and a shower head 64. The water tank 61 and the water pump 62 are both arranged outside the ash bucket 2, and the spray head 64 is arranged inside the ash bucket 2 and above the ash bucket 2. The water inlet of the water pump 62 is connected to the water tank 61, one end of the water inlet pipe 63 is connected to the water outlet of the water pump 62, and one end of the water inlet pipe 63 extends into the ash bucket 2 and is connected to the lower end of the spray head 64 located in the ash bucket 2.
The outlet direction of the water flow in the nozzle 64 is set toward the upper part of the ash bucket 2, and the nozzle 64 is provided with a water outlet channel for spraying the water flow, and the water outlet channel spirally extends from the lower end to the upper end of the nozzle 64 along the outer peripheral surface of the nozzle 64. The upper end of the nozzle 64 is blocked by the blocking plate 643, so that water can only be ejected from the water outlet passage out of the nozzle 64. As shown in fig. 9.
As shown in fig. 9, the outlet channel includes a plurality of first outlet holes 641 and a plurality of second outlet holes 642, the first outlet holes 641 and the second outlet holes 642 have different cross-sectional areas, and the first outlet holes 641 and the second outlet holes 642 are sequentially arranged in a staggered manner along the length extension direction of the outlet channel.
Thus, under the same water pressure, when the water flows through the first outlet 641 and the second outlet 642, two different flow rates of the water flows are generated, and the spiral design of the water flow channel is combined, so that on one hand, the centrifugal force of the water flow can be enhanced, an annular spraying effect can be formed, and on the other hand, the blockage of the nozzle 64 can be prevented.
Preferably, the water outlet channels are arranged in parallel, and the helix angle alpha of each water outlet channel is 45 degrees.
In this embodiment, the cross section of the first outlet 641 is rectangular, and the cross section of the second outlet 642 is circular, so that the processing process of the nozzle 64 is simple, and the processing and manufacturing of the nozzle 64 are facilitated. Of course, the first outlet hole 641 and the second outlet hole 642 may have other cross-sectional shapes.
The flow field in the ash bucket 2 has better axial symmetry, but the top of the ash bucket 2 also has an upward and centripetal longitudinal secondary vortex, the longitudinal secondary vortex enables the dust entering the ash bucket 2 to suspend on the top of the ash bucket 2 for a long time to form a so-called ash bucket top ash ring, as shown in fig. 1, and the dust suspending on the top of the ash bucket 2 for a long time severely abrades the upper part and the top cover of the ash bucket 2, as shown in fig. 7 and 8, and the hatched part in the figure shows the abrasion of the upper part and the top cover of the ash bucket 2 caused by the ash bucket top ash ring.
In order to reduce or eliminate the ash ring on the top of the ash bucket, the spray head 64 is arranged at the height of about 1/3 from top to bottom of the first ash bucket 21 in the invention. Thus, the water flow sprayed from the spray head 64 can wash the upper part of the ash bucket 2, so that the dust entering the ash bucket 2 can not be suspended on the top of the ash bucket 2 for a long time, thereby playing a good role in inhibiting the top ash ring of the ash bucket.
The spraying device is provided with two groups, the corresponding spray heads 64 are also provided with two groups in the ash bucket 2, and preferably, the two groups of spray heads 64 are symmetrically arranged in the ash bucket 2.
In this embodiment, the position of the inlet 111 of the cylinder 1 is defined as the 0 degree position of the cyclone separator, as shown in fig. 4. Due to the relatively severe eccentric flow in the ash bucket 2, the wear of the inner wall of the ash bucket 2 is non-uniform. In the hopper 2, the top and upper part of the hopper 2 at positions spaced 45 degrees and 225 degrees from the inlet 111 in the circumferential direction of the hopper 2 in the flow direction of the gas flow are worn particularly severely.
Thus, in the present invention, the two sets of nozzles 64 are disposed at the following positions in the gas flow direction: one group of the spray heads 64 is spaced 135 degrees from the inlet 111 in the circumferential direction of the ash hopper 2, and the other group of the spray heads 64 is spaced 315 degrees from the inlet 111 in the circumferential direction of the ash hopper 2, as shown in fig. 6. Thus, the influence of the dust ring on the shower head 64 due to abrasion of the dust ring can be avoided while suppressing the dust ring.
The water inlet pipe 63 is made of 316L stainless steel, the water inlet pipe 63 includes a first pipe 631 and a second pipe 632, one end of the first pipe 631 is communicated with the water outlet of the water pump 62, and the other end of the second pipe 632 extends into the dust hopper 2 and is connected with the spray head 64. The pipe diameter of the first pipe 631 is greater than the pipe diameter of the second pipe 632. Thus, when the water flows from the first pipe 631 into the second pipe 632, the pressure of the water flow is increased, so that the pressure of the water flow sprayed from the spray head 64 is increased to increase the spraying effect.
In this embodiment, the second pipeline 632 includes a straight pipe 632a and a connecting bent pipe 632b, the straight pipe 632a is fixedly connected to the ash bucket 2 through a connecting flange 632c, one end of the connecting bent pipe 632b is fixedly connected to the straight pipe 632a, and the other end of the connecting bent pipe 632b is detachably connected to the lower end of the spray head 64, so that the spray head 64 can be conveniently detached and replaced.
Smoke enters the cylinder body 1 from the inlet 111 in a tangential direction through the air inlet pipe 3, and violently rotates in the cylinder body 1, solid particles collide with the wall surface of the cylinder body 1 due to centrifugal force generated by rotation, slide down along the wall surface under the action of gravity, are gathered in the ash hopper 2 and then are discharged into the collecting box 5; the gas passes through the outer vortex moving downwards in the axial direction and then passes through the inner vortex moving upwards in the axial direction while rotating, and is finally discharged from the gas lift pipe 4, so that gas-solid separation is completed. When the process is carried out, the spraying device is started, the water in the water tank 61 is pumped to the spray head 64 by the water pump 62 through the water inlet pipeline 63 and is sprayed out to the upper part of the ash bucket 2 through the spray head 64, so that solid particles gathered in the ash bucket 2 are sprayed, smoke particles and water molecules in smoke or particles are combined with each other, larger particles are formed gradually and collected, and finally the smoke particles and the water are discharged into the collecting box 5 along with the water.
The invention reduces or eliminates the back mixing phenomenon in the ash bucket by spraying water flow into the ash bucket 2, thereby improving the working efficiency of the cyclone separator. Meanwhile, harmful gas which is easy to dissolve in water can be dissolved in water, the harmful gas which is easy to dissolve in water in the smoke can be restrained to a certain extent, and the investment of gas purification equipment is saved or the load of the gas purification equipment is lightened to a certain extent. In addition, because the particle diameter in the ash bucket 2 is enlarged, the particle diameter has a certain weakening effect on the airflow field in the ash bucket 2, and the impact of large-diameter particles on the bottom of the cyclone separator can be reduced, so that the air leakage of the ash bucket 2 is protected to a certain extent. Finally, the tailings or particles collected by the collecting box 5 can be recycled or changed into valuables, so that the economic loss of enterprises is reduced.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. Equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may occur to those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a high-efficient cyclone with spray set, includes the barrel and sets up the ash bucket of the lower extreme of barrel, its characterized in that: still include spray set, spray set is including setting up the inside top of ash bucket be used for to gather in solid particle in the ash bucket carries out the shower nozzle that sprays, the export direction orientation of rivers in the shower nozzle the upper portion of ash bucket sets up, be provided with on the shower nozzle and supply rivers spun exhalant canal, exhalant canal follows the global follow in the outside of shower nozzle the lower extreme of shower nozzle is to the end spiral extension that makes progress, exhalant canal includes a plurality of first apopores and a plurality of second apopores, first apopore with the cross-sectional area of second apopore is different, follows exhalant canal's length extending direction, first apopore with the crisscross interval setting in order of second apopore.
2. The high efficiency cyclone separator with a sprinkling apparatus as claimed in claim 1, wherein: the ash bucket comprises a first ash bucket positioned on the upper portion and a second ash bucket positioned on the lower portion, the first ash bucket is cylindrical, the second ash bucket is conical, the large end of the second ash bucket is sequentially connected with the lower end of the first ash bucket, and the center of the spray head is positioned at the height position 1/3 from top to bottom of the first ash bucket.
3. The high efficiency cyclone separator with a sprinkling apparatus of claim 1, wherein: the spraying devices are provided with two groups, and the spray heads of the two groups of spraying devices are symmetrically arranged in the ash bucket.
4. The high efficiency cyclone separator with a sprinkling apparatus according to claim 1 or 3, wherein: the barrel is provided with an inlet for gas to enter, and along the gas flow direction, the position of one group of spray heads in the circumferential direction of the ash bucket is spaced from the inlet by 135 degrees, and the position of the other group of spray heads in the circumferential direction of the ash bucket is spaced from the inlet by 315 degrees.
5. The high efficiency cyclone separator with a sprinkling apparatus of claim 1, wherein: the water outlet channels are arranged in parallel, and the helix angle of each water outlet channel is 45 degrees.
6. The high efficiency cyclone separator with a sprinkling apparatus of claim 1, wherein: the cross section of the first water outlet is rectangular, and the cross section of the second water outlet is circular.
7. The high efficiency cyclone separator with a sprinkling apparatus of claim 1, wherein: the spraying device further comprises a water tank, a water pump and a water inlet pipeline, the water tank and the water pump are arranged outside the ash bucket, a water inlet of the water pump is connected to the water tank, one end of the water inlet pipeline is connected with a water outlet of the water pump, and the other end of the water inlet pipeline extends into the ash bucket and is connected with the spray head.
8. The high efficiency cyclone separator with a sprinkling apparatus of claim 6, wherein: the inlet channel includes first pipeline and the second pipeline of a tip intercommunication, another tip of first pipeline with the delivery port of water pump is connected, another tip of second pipeline stretch into in the ash bucket with the shower nozzle is connected.
9. The high efficiency cyclone separator with a sprinkling apparatus of claim 8, wherein: the pipe diameter of the first pipeline is larger than that of the second pipeline.
10. The high efficiency cyclone separator with a sprinkling apparatus as claimed in claim 1, wherein: the water inlet pipeline is detachably connected with the spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210473738.4A CN115041310B (en) | 2022-04-29 | 2022-04-29 | High-efficient cyclone with spray set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210473738.4A CN115041310B (en) | 2022-04-29 | 2022-04-29 | High-efficient cyclone with spray set |
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| Publication Number | Publication Date |
|---|---|
| CN115041310A true CN115041310A (en) | 2022-09-13 |
| CN115041310B CN115041310B (en) | 2024-04-09 |
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| CN210587461U (en) * | 2019-07-03 | 2020-05-22 | 浙江宇钻精密元件有限公司 | Cutting reamer with staggered holes |
| DE202019106487U1 (en) * | 2019-11-21 | 2021-02-24 | Bma Braunschweigische Maschinenbauanstalt Ag | Dust separator and evaporation dryer |
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