CN116532239B - Pretreatment equipment and dust removal system - Google Patents
Pretreatment equipment and dust removal system Download PDFInfo
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- CN116532239B CN116532239B CN202310512322.3A CN202310512322A CN116532239B CN 116532239 B CN116532239 B CN 116532239B CN 202310512322 A CN202310512322 A CN 202310512322A CN 116532239 B CN116532239 B CN 116532239B
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- 239000000428 dust Substances 0.000 title claims abstract description 174
- 230000007246 mechanism Effects 0.000 claims abstract description 92
- 238000001914 filtration Methods 0.000 claims description 41
- 238000004140 cleaning Methods 0.000 claims description 21
- 238000007664 blowing Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000012717 electrostatic precipitator Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 14
- 239000002245 particle Substances 0.000 description 14
- 238000001035 drying Methods 0.000 description 11
- 239000010802 sludge Substances 0.000 description 11
- 239000008187 granular material Substances 0.000 description 8
- 238000005452 bending Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
- B03C3/011—Prefiltering; Flow controlling
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/36—Controlling flow of gases or vapour
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention discloses a pretreatment device and a dust removal system, which comprise an adjusting mechanism, wherein the adjusting mechanism comprises: the baffle plate assembly is used for being installed at an inlet of the electrostatic dust collection equipment and comprises a first baffle plate and a second baffle plate, a first through hole and a second through hole are respectively formed in the first baffle plate and the second baffle plate, and the first baffle plate and the second baffle plate are attached; a first driving device; the first through holes are at least two and are located on the same circumference, or the second through holes are at least two and are located on the same circumference, and the first driving device can drive the first baffle or the second baffle to rotate so that the first through holes and the second through holes are communicated. The first baffle or the second baffle is driven to rotate through the first driving device, the first through hole and the second through hole are communicated after alignment, the adjusting mechanism is used for intermittently conducting dust in the circumferential direction, the dust entering the electrostatic dust collection equipment is more dispersed, the operation load is reduced, and the electrostatic dust collection efficiency is improved.
Description
Technical Field
The invention relates to the field of electrostatic dust collection, in particular to pretreatment equipment and a dust collection system.
Background
Sludge is an organic substance with potential dust explosion characteristics. The safety of sludge drying relates to the whole sludge drying system, and most sludge drying processes comprise storage, drying, dust removal and other devices which are connected into a system through pipelines, valves, fans and the like.
In the prior art, an electrostatic dust collection procedure can be adopted in a sludge drying treatment line, and the working principle is that a high-voltage electric field is utilized to ionize smoke, and dust in air flow is charged and separated from the air flow under the action of the electric field. As the prior art, the use technology of electrostatic dust collection equipment in a sludge drying treatment line has been disclosed, for example, chinese patent application publication No. CN214637326U, which proposes in the specification that "waste gas to be cleaned enters into a dust collection box 2 through an air inlet box 1, a dc transformer 3 transforms voltage, current after the transformation is communicated with an electrode plate 6, so that static electricity is generated on the electrode plate 6, and dust in the waste gas can be electrostatically adsorbed", but some larger dust particles exist in dust in the sludge drying waste gas, if the dust collection is carried out only by means of the electrostatic dust collection equipment without pretreatment, the operation load of the electrostatic dust collection equipment is gradually increased, and finally the dust collection efficiency is gradually reduced; secondly, in the electrostatic dust collection equipment in the prior art, the gas transmission pipeline of the electrostatic dust collection equipment is uneven in conveying of sludge drying waste gas, and the dust collection efficiency of the electrostatic dust collection equipment is also affected.
Disclosure of Invention
The invention aims to overcome the defect of low electrostatic dust collection efficiency in a sludge drying treatment line in the prior art, and provides pretreatment equipment and a dust collection system.
The invention solves the technical problems by the following technical scheme:
A pretreatment apparatus comprising an adjustment mechanism, the adjustment mechanism comprising:
The baffle plate assembly is used for being installed at an inlet of the electrostatic dust collection equipment and comprises a first baffle plate and a second baffle plate, a first through hole and a second through hole are respectively formed in the first baffle plate and the second baffle plate, and the first baffle plate is attached to the second baffle plate;
a first driving device;
The first through holes are at least two and are located on the same circumference, or the second through holes are at least two and are located on the same circumference, and the first driving device can drive the first baffle or the second baffle to rotate so that the first through holes and the second through holes are communicated.
In this scheme, when letting in the dust in to electrostatic precipitator equipment, drive first baffle or second baffle through first drive arrangement and rotate for first through-hole and second through-hole switch on after aiming at, get into electrostatic precipitator equipment behind dust through first through-hole and the second through-hole, utilize adjustment mechanism to the regulation effect that the dust was intermittently switched on in the circumferencial direction, thereby make the inside dust of entering electrostatic precipitator equipment more disperse, realize evenly carrying the dust, reduce the dust gathering and be great granule, thereby reduce the risk that electrostatic precipitator equipment operation load increases, improve electrostatic precipitator efficiency. Meanwhile, compared with other through hole arrangement schemes, the first through holes and the second through holes are arranged on the same circumference, so that the first driving device only needs to drive one baffle to rotate along the fixed direction, the intermittent conduction purpose can be achieved, and the structure is simpler.
Preferably, when the number of the first through holes is at least two, the distances between any two adjacent first through holes are equal;
when the number of the second through holes is at least two, the distances between any two adjacent second through holes are equal.
In this scheme, this structure sets up for first through-hole and second through-hole evenly distributed in the circumferencial direction, more disperses when making the dust get into electrostatic precipitator equipment from first through-hole and second through-hole, further improves the preliminary treatment effect.
Preferably, the pretreatment device comprises a first pipeline, the baffle assembly is installed in the first pipeline, one end of the first pipeline is installed at the inlet, and the other end of the first pipeline is used for introducing dust.
In this scheme, this structure sets up, adopts the form of pipe connection to place the baffle subassembly in the pipeline, make pretreatment equipment have good leakproofness, avoid the dust leakage, the dust can only get into electrostatic precipitator equipment when first through-hole and second through-hole switch on, guarantees the pressure and the speed that the dust lets in, improves pretreatment efficiency.
Preferably, the first driving device comprises a first motor and a first output shaft, the first motor is arranged outside the first pipeline, the first pipeline is provided with a bending part, the output shaft is arranged at the bending part, and the first output shaft is in transmission connection with the first baffle or the second baffle.
In this scheme, this structure sets up, and first output shaft gets into first pipeline through the kink to drive first baffle or second baffle and rotate, make first motor can set up outside first pipeline, avoid the dust to get into first motor, guarantee its normal operating.
Preferably, the pretreatment device further comprises a filtering mechanism, the filtering mechanism is located at the upstream of the adjusting mechanism, the filtering mechanism comprises a filtering body, a filter screen arranged in the filtering body and a cleaning assembly, the cleaning assembly comprises a cleaning brush and a second driving device, the cleaning brush is attached to the filter screen, and the second driving device can drive the cleaning brush to move so as to clean the filter screen.
In the scheme, the structure is provided, the filtering mechanism can filter out dust with larger particles, and the filtering mechanism is combined with the adjusting mechanism, so that the particle size of the dust entering the adjusting mechanism is smaller, the risk that the first through hole or the second through hole is blocked by the dust with large particle size is reduced, the adjusting action of a subsequent adjusting mechanism is prevented from being influenced, and the uniform conveying of the dust by the adjusting mechanism is ensured; because the cleaning brush can clean the filter screen, the filter screen can maintain the long-time and high-quality filtering effect, and the normal operation of the filtering mechanism and the adjusting mechanism is ensured.
Preferably, the cleaning brush comprises a brush bar, the second driving device comprises a second output shaft, the second output shaft is located at the middle position of the filter screen, the second output shaft is connected with one end of the brush bar, and the second output shaft can drive the brush bar to rotate.
In this scheme, this structure sets up, cleans the filter screen through the rotation of brush strip, and the brush strip can cover bigger clean scope, and the second output shaft is direct to be connected with the brush strip transmission moreover, simple structure, and the reliability is high.
Preferably, the pretreatment device comprises a second pipeline, the filtering mechanism is arranged on the second pipeline, one end of the second pipeline is communicated with the first pipeline, and the other end of the second pipeline is used for introducing dust.
In this scheme, this structure sets up, and filtering mechanism and adjustment mechanism switch on through first pipeline and second pipeline to improve the leakproofness, avoid the dust leakage.
Preferably, the pretreatment device further comprises a third pipeline and a circulation mechanism, the circulation mechanism comprises a collection component and a blowing component, the collection component is located below the filter screen, the collection component can collect dust falling off from the filter screen, the third pipeline is sequentially connected with the blowing component, the collection component and the filtering mechanism, and the blowing component can convey dust in the collection component into the filtering body of the filtering mechanism.
In this scheme, this structure sets up, and circulation mechanism's collection subassembly can be with the great dust collection of the granule that the filter screen filtered to utilize the blast assembly to blow back the dust of collecting in the filter mechanism again, form closed loop, the blast assembly is blowing back the filter mechanism in-process with the dust moreover, can be with the broken granule of the dust of great granule for less granule, thereby improve filtration efficiency.
Preferably, the collecting assembly comprises a dust collecting pipeline and a dust collecting bag, one end of the dust collecting pipeline is used for collecting dust dropped by the filter screen, the other end of the dust collecting pipeline is communicated with the third pipeline, and the dust collecting bag is positioned at the downstream of the communicating position of the dust collecting pipeline and the third pipeline.
In this scheme, this structure sets up, and the dust that collection subassembly was collected from the filter screen can temporarily store in the dust bag, avoids the pipeline of jam when the dust volume is great.
Preferably, the circulation mechanism comprises a one-way valve mounted at the output end of the blower assembly.
In this scheme, this structure sets up, avoids the dust to get into the blast assembly inside, guarantees blast assembly normal operating.
The invention also discloses a dust removal system which comprises the pretreatment equipment, and further comprises electrostatic dust removal equipment, wherein the pretreatment equipment comprises a first pipeline, one end of the first pipeline is arranged at the inlet, and the baffle assembly is positioned at one end of the first pipeline connected with the inlet.
In this scheme, this structure sets up, through installing baffle subassembly in electrostatic precipitator's import, the dust can directly get into electrostatic precipitator's inside after baffle subassembly's regulation effect, avoids the dust to deposit between baffle subassembly and electrostatic precipitator after regulation effect, guarantees adjustment mechanism to the regulation effect of dust to the inside dust of entering electrostatic precipitator is more even.
The invention has the positive progress effects that: when the dust is introduced into the electrostatic dust collection equipment, the first baffle or the second baffle is driven to rotate through the first driving device, so that the first through hole and the second through hole are communicated after alignment, the dust enters the electrostatic dust collection equipment after passing through the first through hole and the second through hole, the dust is intermittently communicated in the circumferential direction by utilizing the adjusting mechanism, so that the dust entering the electrostatic dust collection equipment is more dispersed, the uniform dust conveying is realized, the dust aggregation into larger particles is reduced, the risk of the increase of the operation load of the electrostatic dust collection equipment is reduced, and the electrostatic dust collection efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a dust removal system according to a preferred embodiment of the present invention.
FIG. 2 is a schematic view of the internal structure of a baffle assembly according to a preferred embodiment of the present invention.
Fig. 3 is a schematic structural view of a second baffle according to a preferred embodiment of the present invention.
Fig. 4 is a schematic view showing the internal structure of the filtering mechanism according to the preferred embodiment of the present invention.
Fig. 5 is a schematic perspective view (one) of a dust removing system according to a preferred embodiment of the present invention.
Fig. 6 is a schematic perspective view (two) of a dust removing system according to a preferred embodiment of the present invention.
Description of the reference numerals
Adjusting mechanism 1
Baffle assembly 11
First baffle 111
First through hole 1111
Second baffle 112
Second through hole 1121
First motor 12
First output shaft 13
First pipe 14
Bending portion 141
Filter mechanism 2
Filter body 21
Filter screen 22
Brush bar 23
Second motor 24
Second output shaft 25
Second conduit 26
Circulation mechanism 3
Collecting assembly 31
Dust collecting pipe 311
Dust bag 312
Blower assembly 32
Third conduit 33
Electrostatic dust removing apparatus 4
Air inlet pipe 51
Air outlet pipe 52
Dust discharging valve 53
Support frame 54
Base 55
Auxiliary frame 56
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1 to 6, the present embodiment discloses a dust removal system including an electrostatic dust removal apparatus 4 and a pretreatment apparatus, wherein the pretreatment apparatus includes an adjusting mechanism 1, a filtering mechanism 2, and a circulating mechanism 3.
Specifically, as shown in fig. 1 and 3, a pretreatment apparatus includes an adjustment mechanism 1, the adjustment mechanism 1 including: the baffle assembly 11, the baffle assembly 11 is used for being installed at an inlet of the electrostatic dust collection device 4, the baffle assembly 11 comprises a first baffle 111 and a second baffle 112, a first through hole 1111 and a second through hole 1121 are respectively formed in the first baffle 111 and the second baffle 112, and the first baffle 111 and the second baffle 112 are attached; the number of the second through holes 1121 is at least two and located on the same circumference, and the first driving device can drive the first baffle 111 or the second baffle 112 to rotate so as to make the first through holes 1111 and the second through holes 1121 conduct.
Specifically, as shown in fig. 2 and 3, the number of the first through holes 1111 is one, the number of the second through holes 1121 is 6 and the same circumference is formed, however, in other alternative embodiments, the number of the second through holes 1121 may be 1, and the number of the first through holes 1111 may be more than two; in other alternative embodiments, the number of the first through holes 1111 and the second through holes 1121 may be set to 2 or more at the same time, for example, the number of the first through holes 1111 is set to 2, and the number of the second through holes 1121 is set to 6.
In this embodiment, when dust is introduced into the electrostatic precipitator 4, the first baffle 111 or the second baffle 112 is driven to rotate by the first driving device, so that the first through hole 1111 and the second through hole 1121 are conducted after alignment, and the adjusting mechanism 1 is utilized to intermittently conduct the dust in the circumferential direction, so that the dust entering the electrostatic precipitator 4 is more dispersed, uniform dust conveying is realized, dust aggregation into larger particles is reduced, the risk of increasing the running load of the electrostatic precipitator 4 is reduced, and the electrostatic precipitator efficiency is improved.
As shown in fig. 3, the distances between any two adjacent second through holes 1121 are equal, that is, the arc lengths of the two adjacent second through holes 1121 on the circumference where the two adjacent second through holes 1121 are located are equal, the second through holes 1121 are uniformly distributed in the circumferential direction, after the first baffle 111 rotates by the same angle, the first through holes 1111 are respectively conducted with the second through holes 1121, so that dust is more dispersed when entering the electrostatic dust collection device 4 from the first through holes 1111 and the second through holes 1121, and the pretreatment effect is further improved. Of course, in other alternative embodiments, the distances of the second through holes 1121 may be unequal.
In other alternative embodiments, the number of second through holes 1121 is at least two, and the distances between any two adjacent second through holes 1121 are equal.
As shown in fig. 1, the pretreatment apparatus includes a first duct 14, a baffle assembly 11 is installed in the first duct 14, one end of the first duct 14 is installed at an inlet, and the other end of the first duct 14 is used for introducing dust. Adopt the form of pipe connection to place baffle assembly 11 in the pipeline, make pretreatment apparatus have good leakproofness, avoid the dust leakage, the dust can only get into electrostatic precipitator equipment 4 when first through-hole 1111 and second through-hole 1121 switch on, guarantees the pressure and the speed that the dust lets in, improves pretreatment efficiency. Of course, in other alternative embodiments, dust may also be introduced directly from the first baffle 111 at a side remote from the electrostatic precipitator device 4.
As shown in fig. 1, the first driving device includes a first motor 12 and a first output shaft 13, the first motor 12 is disposed outside the first pipe 14, the first pipe 14 has a bending portion 141, the output shaft is mounted at the bending portion 141, and the first output shaft 13 is in transmission connection with the first baffle 111 or the second baffle 112. The first output shaft 13 enters the first pipeline 14 through the bending part 141 and drives the first baffle 111 or the second baffle 112 to rotate, so that the first motor 12 can be arranged outside the first pipeline 14, dust is prevented from entering the first motor 12, and normal operation of the first motor is ensured.
As shown in fig. 1 and 4, the pretreatment apparatus further includes a filter mechanism 2, the filter mechanism 2 is located upstream of the adjustment mechanism 1, the filter mechanism 2 includes a filter body 21, a filter screen 22 provided in the filter body 21, and a cleaning assembly including a cleaning brush attached to the filter screen 22 and a second driving device capable of driving the cleaning brush to move to clean the filter screen 22. The filtering mechanism 2 can filter out the dust with larger particles, the filtering mechanism 2 and the adjusting mechanism 1 are combined, so that the particle size of the dust entering the adjusting mechanism 1 is smaller, the risk that the first through hole 1111 or the second through hole 1121 is blocked by the dust with large particle size is reduced, the adjusting action of the subsequent adjusting mechanism 1 is prevented from being influenced, and the uniform conveying of the dust by the adjusting mechanism 1 is ensured; because the cleaning brush can clean the filter screen 22, the filter screen 22 can maintain a long-time and high-quality filtering effect, and the normal operation of the filtering mechanism 2 and the adjusting mechanism 1 is ensured.
As shown in fig. 4, the cleaning brush comprises a brush bar 23, the second driving device comprises a second output shaft 25, the second output shaft 25 is located at the middle position of the filter screen 22, the second output shaft 25 is connected with one end of the brush bar 23, and the second output shaft 25 can drive the brush bar 23 to rotate. The filter screen 22 is cleaned through the rotation of the brush bar 23, the brush bar 23 can cover a larger cleaning range, and the second output shaft 25 is directly connected with the brush bar 23 in a transmission way, so that the structure is simple and the reliability is high.
Specifically, the filtering body 21 is in a box structure, wherein the second output shaft 25 is movably connected with one side of the filter screen 22, that is, the second output shaft 25 can rotate relative to the filter screen 22, the cleaning assembly further comprises a support, the filter screen 22 is mounted on the support, the output end of the second output shaft 25 penetrates through the middle of the support and protrudes, and two ends of the second output shaft 25 are respectively connected with the second motor 24 and the brush bar 23 in a transmission manner.
Specifically, in this embodiment, the second output shaft 25 may be periodically rotated clockwise and counterclockwise, so as to avoid dust accumulation on the edge of the filter screen 22, and improve the cleaning effect of the brush bar 23, so as to maintain the long-term and high-quality filtering effect of the filtering mechanism 2, and of course, in other alternative embodiments, the second output shaft 25 may not be disposed at the middle position of the filter screen 22.
As shown in fig. 1, the pretreatment apparatus includes a second pipe 26, the filter mechanism 2 is disposed on the second pipe 26, one end of the second pipe 26 is in communication with the first pipe 14, and the other end of the second pipe 26 is for introducing dust. The filter mechanism 2 and the adjusting mechanism 1 are communicated through the first pipeline 14 and the second pipeline 26, so that the tightness is improved, and dust leakage is avoided. Of course, in other alternative embodiments, the filtering mechanism 2 may be provided without a pipe, that is, the outlet of the filtering mechanism 2 faces the side of the first baffle 111 away from the electrostatic dust collection, and the dust filtered from the filtering mechanism 2 enters the electrostatic dust collection device 4 after passing through the first through hole 1111 and the second through hole 1121, respectively.
Specifically, in the present embodiment, the connection of the first output shaft 13 and the first pipe 14 is provided with a first seal; the filter mechanism 2 is arranged on the second pipeline 26, and a second sealing element is arranged at the joint of the second output shaft 25 and the second pipeline 26. By arranging sealing elements at the joints of the first output shaft 13 and the second output shaft 25 and corresponding pipelines, the tightness of the adjusting mechanism 1 and the filtering mechanism 2 is ensured, and dust leakage is avoided.
As shown in fig. 1, the pretreatment apparatus further includes a third pipe 33 and a circulation mechanism 3, the circulation mechanism 3 includes a collection component 31 and a blast component 32, the collection component 31 is located below the filter screen 22, the collection component 31 can collect dust falling off from the filter screen 22, the third pipe 33 sequentially conducts the blast component 32, the collection component 31 and the filter mechanism 2, and the blast component 32 can convey the dust in the collection component 31 into the filter body 21 of the filter mechanism 2. The collection subassembly 31 of circulation mechanism 3 can collect the great dust of granule that filter screen 22 filtered to utilize blast air subassembly 32 to blow back the dust of collecting in the filter mechanism 2 again, form the closed loop, blast air subassembly 32 is blowing back the filter mechanism 2 in-process with the dust moreover, can be with the broken of the dust of great granule into less granule, thereby improves filtration efficiency.
As shown in fig. 1, the collection assembly 31 includes a dust collecting pipe 311 and a dust collecting bag 312, one end of the dust collecting pipe 311 is used for collecting dust dropped from the filter screen 22, the other end of the dust collecting pipe 311 is communicated with the third pipe 33, and the dust collecting bag 312 is located downstream of the communication between the dust collecting pipe 311 and the third pipe 33. Dust collected by the collection assembly 31 from the filter screen 22 can be stored in the dust bag 312 to avoid clogging the pipe when the amount of dust is large. Of course, in other alternative embodiments, the dust bag 312 may not be provided, and the risk of dust blockage may be reduced by increasing the cross-sectional area of the third conduit 33. Specifically, in the present embodiment, the circulation mechanism 3 includes a check valve (not shown in the drawings) mounted at the output end of the blower assembly 32. By utilizing the unidirectional conduction function of the unidirectional valve, dust is prevented from entering the inside of the air blast assembly 32, and the normal operation of the air blast assembly 32 is ensured.
As shown in fig. 1, one end of the first conduit 14 is mounted to the inlet and the baffle assembly 11 is positioned at the end of the first conduit 14 that is connected to the inlet. Through installing baffle assembly 11 in the import of electrostatic precipitator equipment 4, the dust can directly get into the inside of electrostatic precipitator equipment 4 after the regulating action of baffle assembly 11, avoids the dust to deposit between baffle assembly 11 and electrostatic precipitator equipment 4 after the regulating action, guarantees the regulating action of adjustment mechanism 1 to the dust to the inside dust of entering electrostatic precipitator equipment 4 is more even.
Specifically, in this embodiment, as shown in fig. 1, an air outlet pipe 52 is installed at the top of one side of the electrostatic dust collection device 4, and a dust unloading valve 53 is connected to the bottom, a support frame 54 is fixedly sleeved on the surface of the bottom of the electrostatic dust collection device 4, a base 55 is fixedly connected to the bottom of the support frame 54, and an auxiliary frame 56 is fixedly connected to the middle of the base 55; the motors in the embodiment are band-type brake stepping motors, wherein a supporting plate is fixedly arranged between the surface of the first motor 12 shell and the inner side of the top of the auxiliary frame 56; specifically, the bottom of the filtering body 21 is fixedly sleeved with an extension square tube, the dust collecting pipe 311 is an inverted T-shaped pipe, and one end of the air inlet pipe 51 (i.e. one end of the second pipe 26 is used as the air inlet pipe 51) and one end of the air outlet pipe 52 are both flange structures, so that the subsequent connection with other components is facilitated.
The dust pelletizing system work flow is as follows, sludge drying waste gas (dust) lets in from intake pipe 51, the dust gets into filtering mechanism 2 at first, through the filter effect of filter screen 22, the dust that the particle diameter is less gets into adjustment mechanism 1 through first pipeline 14, the dust that the particle diameter is great is filtered by filter screen 22, wherein, the dust that glues on filter screen 22 is cleared up by brush strip 23 and falls in the bottom of filtering body 21, then get into circulation mechanism 3 through dust collecting pipeline 311, the dust that gets into in the circulation mechanism 3 gets into dust bag 312 through the impact effect of the air current of air blast subassembly or back flow to filtering mechanism 2 through third pipeline 33, the air current of air blast subassembly also can smash the dust of big particle diameter simultaneously, the dust that flows back to filtering mechanism 2 is filtered again, the particle diameter of the dust that gets into adjustment mechanism 1 is all less, through the adjustment effect of adjustment mechanism 1, the dust that gets into electrostatic precipitator 4 can keep even and the particle diameter less, whole flow closed loop operation, can avoid leaking when realizing sludge drying waste gas (dust) handling.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (9)
1. A pretreatment apparatus comprising an adjustment mechanism, the adjustment mechanism comprising:
The baffle plate assembly is used for being installed at an inlet of the electrostatic dust collection equipment and comprises a first baffle plate and a second baffle plate, a first through hole and a second through hole are respectively formed in the first baffle plate and the second baffle plate, and the first baffle plate is attached to the second baffle plate;
a first driving device;
The first driving device can drive the first baffle or the second baffle to rotate so as to conduct the first through holes and the second through holes;
The pretreatment equipment further comprises a filtering mechanism, wherein the filtering mechanism is positioned at the upstream of the adjusting mechanism, the filtering mechanism comprises a filtering body, a filter screen and a cleaning assembly, the filter screen is arranged in the filtering body, the cleaning assembly comprises a cleaning brush and a second driving device, the cleaning brush is attached to the filter screen, and the second driving device can drive the cleaning brush to move so as to clean the filter screen;
The pretreatment equipment further comprises a third pipeline and a circulating mechanism, the circulating mechanism comprises a collecting assembly and a blowing assembly, the collecting assembly is located below the filter screen, the collecting assembly can collect dust falling off from the filter screen, the blowing assembly, the collecting assembly and the filtering mechanism are sequentially conducted through the third pipeline, and the blowing assembly can convey dust in the collecting assembly into the filtering mechanism.
2. The pretreatment apparatus as claimed in claim 1, wherein when the number of said first through holes is at least two, distances between any two adjacent ones of said first through holes are equal;
when the number of the second through holes is at least two, the distances between any two adjacent second through holes are equal.
3. The pretreatment apparatus of claim 1, wherein the pretreatment apparatus comprises a first conduit, the baffle assembly is mounted in the first conduit, one end of the first conduit is mounted at the inlet, and the other end of the first conduit is configured to pass dust.
4. A pretreatment apparatus according to claim 3, wherein the first drive means comprises a first motor and a first output shaft, the first motor being disposed outside the first conduit, the first conduit having a bend, the first output shaft being mounted at the bend, the first output shaft being in driving connection with the first baffle or the second baffle.
5. A pretreatment apparatus according to claim 3, wherein the cleaning brush comprises a brush bar, and the second drive means comprises a second output shaft, the second output shaft being located at an intermediate position of the filter screen, the second output shaft being connected to one end of the brush bar, the second output shaft being capable of driving the brush bar to rotate.
6. A pretreatment apparatus according to claim 3, wherein the pretreatment apparatus comprises a second pipe, the filter mechanism is provided on the second pipe, one end of the second pipe is communicated with the first pipe, and the other end of the second pipe is used for introducing dust.
7. The pretreatment apparatus according to claim 1, wherein the collection assembly comprises a dust collection pipe and a dust collection bag, one end of the dust collection pipe is used for collecting dust dropped from the filter screen, the other end of the dust collection pipe is communicated with the third pipe, and the dust collection bag is located downstream of a communication position between the dust collection pipe and the third pipe.
8. The pretreatment apparatus of claim 1, wherein the circulation mechanism comprises a one-way valve mounted at an output end of the blower assembly.
9. A dust removal system, characterized in that the dust removal system comprises the pretreatment device according to any one of claims 1-8, the dust removal system further comprises an electrostatic dust removal device, the pretreatment device comprises a first pipeline, one end of the first pipeline is installed at an inlet of the electrostatic dust removal device, and the baffle assembly is located at one end of the first pipeline connected with the inlet.
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| CN116532239B true CN116532239B (en) | 2024-04-16 |
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| CN116532239A (en) | 2023-08-04 |
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