An air inlet device for a dust collector

Abstract

The application discloses a dust collector air inlet device, which comprises a dust removal tank body, a partition plate horizontally fixed in the dust removal tank body, a plurality of filtering mechanisms uniformly arranged on the partition plate and used for filtering dust-containing gas, a pulse dust cleaning mechanism arranged on the top of the dust removal tank body and used for automatically cleaning dust of the filtering mechanisms, four air inlet pipes uniformly arranged on the tank body of the dust removal tank body and located below the partition plate, an air outlet pipe arranged on the tank body of the dust removal tank body and located above the partition plate, a ring-shaped pipeline connected with all the air inlet pipes, a dust hopper arranged on the bottom of the tank body of the dust removal tank body and in the shape of a hopper, and a closed dust discharge valve fixedly installed on a dust discharge port of the dust hopper. The ring-shaped pipeline comprises four butterfly valves, three three-way pipes, one four-way pipe and four arc-shaped pipes. The dust collector air inlet device has the advantages and effects that impact vortex of dust-containing flue gas in the dust hopper is avoided, and all the filter bags are uniformly used for filtering the dust-containing flue gas.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust collector, in particular to a dust collector air inlet device. BACKGROUND

[0002] At present, a large amount of flue gas is generated in the production process of factories, and the flue gas often contains a lot of toxic and harmful dust. If the flue gas is directly discharged into the air, it will cause great pollution to the environment. Therefore, the flue gas needs to be dedusted and purified before entering the atmosphere. The existing flue gas dedusting and purification usually uses a pulse bag dust collector. The working principle is that the dust-containing flue gas enters the ash hopper through the air inlet, the coarse dust particles directly fall into the bottom of the ash hopper, the fine dust particles are turned upward along with the airflow into the middle and lower box bodies, the dust is deposited on the outer surface of the filter bag, and the filtered gas enters the upper box body to the clean gas collecting pipe-exhaust air duct and is discharged into the atmosphere through the exhaust fan. In order to clean the ash, the clean gas outlet air duct of the chamber is first cut off, so that the filter bag in the chamber is in a state of no airflow passing (chamber stop wind ash cleaning). Then, the pulse valve is opened to blow off the ash with compressed air, so that the dust deposited on the outer surface of the filter bag is stripped therefrom and falls into the ash hopper.

[0003] However, the existing pulse bag dust collector usually has only one air inlet. When the dust-containing flue gas flows through the air inlet into the ash hopper, an impingement vortex is easily formed inside the ash hopper, which not only wears the inner wall of the ash hopper, but also affects the falling of the coarse dust particles into the ash hopper, causing secondary dust raising and increasing the operating resistance of the dust collector. At the same time, most of the fine dust particles are first contacted and retained on the filter bag near the air inlet, thereby causing different filter working conditions and uneven service life of all filter bags of the dust collector. SUMMARY

[0004] The purpose of the present application is to provide a dust collector air inlet device which has the effects of avoiding the formation of an impingement vortex of dust-containing flue gas inside the ash hopper and ensuring uniform filtration of dust-containing flue gas by all filter bags.

[0005] The above technical purpose of the present application is achieved by the following technical scheme: a dust collector air inlet device, comprising a dust collector tank body, a partition plate horizontally fixed inside the dust collector tank body, a plurality of groups of filter mechanisms uniformly arranged on the partition plate and filtering dust-containing gas, a pulse ash cleaning mechanism arranged at the top of the dust collector tank body and automatically cleaning the filter mechanisms, four air inlet pipes uniformly arranged on the tank body of the dust collector tank and located below the partition plate, an air outlet pipe arranged on the tank body of the dust collector tank and located above the partition plate, an annular pipe connecting all the air inlet pipes, an ash hopper arranged at the bottom of the dust collector tank body and in the shape of a hopper, and a closed air discharge valve fixedly installed at the ash discharge port of the ash hopper.

[0006] The annular pipeline comprises four butterfly valves, three three-way pipes, one four-way pipe, four arc-shaped pipes, one end of the four butterfly valves is connected with the air inlet pipe, one end of the three three-way pipes is connected with the other end of the three butterfly valves, one end of the four-way pipe is connected with the other end of the remaining one butterfly valve, one end of the two arc-shaped pipes is connected with the two ends of the four-way pipe, the other end is connected with the one end of the two three-way pipes adjacent to the four-way pipe, one end of the other two arc-shaped pipes is connected with the two ends of one three-way pipe, the other end is connected with the remaining one end of the two three-way pipes adjacent to the four-way pipe, and the remaining one end of the four-way pipe is connected with the conveying pipe for conveying the dust-containing flue gas.

[0007] Further arrangement of the application is that the inner wall of the dust removal tank is provided with an annular groove, and the four air inlet pipes are connected with the inside of the annular groove, a rotating ring one is horizontally arranged in the annular groove, a rotating mechanism is arranged on the tank body of the dust removal tank to drive the rotation of the rotating ring one, twelve vertical support square columns are uniformly arranged on the top of the rotating ring one, a plurality of upper, middle and lower guide vanes arranged in parallel are connected between the adjacent two support square columns, the upper, middle and lower guide vanes are in arc shape, the upper guide vanes are inclined upward, the middle guide vanes are horizontal, and the lower guide vanes are inclined downward, the upper, middle and lower guide vanes are divided into four groups, and the four groups of upper, middle and lower guide vanes are arranged between the four pairs of support square columns, and the four groups of upper, middle and lower guide vanes are arranged in the clockwise or counterclockwise direction on the rotating ring one.

[0008] Further arrangement of the application is that the rotating mechanism comprises a rotating ring two fixedly connected with the top ends of all the support square columns and parallel to the rotating ring one, a gear ring horizontally fixed on the top of the rotating ring two, a driving gear rotatingly engaged with the gear ring, and a motor driving the rotation of the driving gear, an open-topped box body accommodating the driving gear is fixed on the outer wall of the dust removal tank, a box cover closing the opening is screw-fixed on the top of the box body, the motor is fixed on the top of the box cover, and the output end of the motor is connected with the driving gear through the box cover, a communication hole is formed in the tank body of the dust removal tank to communicate the box body and the annular groove, and the driving gear in the box body is engaged with the gear ring in the tank body through the communication hole.

[0009] Further arrangement of the application is that the top wall of the annular groove is fixedly provided with an annular baffle shielding the rotating ring two and the gear ring, the outer profile surface of the rotating ring two is tightly fitted with the side wall of the annular groove, and the inner profile surface of the rotating ring two is tightly fitted with the outer profile surface of the annular baffle, a sealing groove is formed in the inner profile surface of the rotating ring two, and a ring of sealing protrusions rotatingly embedded in the sealing groove is fixed on the outer profile surface of the annular baffle.

[0010] Further, a plurality of vertical support cylinders are fixedly connected between the rotating circular ring one and the rotating circular ring two, and the support cylinders are fixedly penetrated through the upper guide vanes, a plurality of vertical support cylinders are fixedly connected between the rotating circular ring one and the rotating circular ring two, and the support cylinders are fixedly penetrated through the middle guide vanes, a plurality of vertical support cylinders are fixedly connected between the rotating circular ring one and the rotating circular ring two, and the support cylinders are fixedly penetrated through the lower guide vanes, the support cylinders one, the support cylinders two and the support cylinders three are respectively divided into four groups, each group of the support cylinders one or the support cylinders two or the support cylinders three is located between two adjacent support square columns, the number of the support cylinders one in each group is less than the number of the support cylinders two in each group, and the number of the support cylinders two in each group is less than the number of the support cylinders three in each group.

[0011] Further, the support square column is provided with a cleaning brush one on the side facing the annular groove bottom, and the cleaning brush one cleans the annular groove bottom by cooperating with the moving motion of the support square column, the outer contour surface of the rotating circular ring one is closely attached to the annular groove bottom, the inner contour of the rotating circular ring one is flush with the inner wall of the dust removal tank, and the top of the rotating circular ring one is an inclined downward inclined surface, a plurality of arc-shaped plates are uniformly fixedly connected to the bottom of the annular baffle, and all the arc-shaped plates and the annular baffle are coaxial, and the arc-shaped plate is fixedly provided with a cleaning brush two on the side facing the annular groove bottom, and the cleaning brush two cleans the support square column, the upper guide vane, the middle guide vane and the lower guide vane by cooperating with the rotating motion of the rotating circular ring one or the rotating circular ring two.

[0012] Further, the filter mechanism comprises a cylindrical filter bag and a cylindrical cage, filter bag mounting holes are formed in the partition plate, and the head of the cylindrical filter bag is clamped and fixed in the filter bag mounting hole, and the cylindrical cage is inserted into the inside of the cylindrical filter bag from the top of the partition plate, and supports the cylindrical filter bag to keep the shape of the cylinder.

[0013] Further, the dust removal tank is open at the top, and a tank cover is fixed by bolts, and the pulse dust cleaning mechanism is arranged on the tank cover.

[0014] Further, the pulse dust cleaning mechanism comprises a compressed air tank fixed on the top of the tank cover, a blowing pipe fixed on the bottom of the tank cover and located above the partition plate, a plurality of pulse electromagnetic valves with input ends connected to the compressed air tank and output ends commonly connected to the blowing pipe, the pulse electromagnetic valves are located on the top of the tank cover, and the pulse electromagnetic output ends penetrate through the tank cover to connect the blowing pipe, a plurality of vertical downward blowing ports are uniformly arranged on the blowing pipe, and all the blowing ports are sequentially aligned with all the filter bag mounting holes on the partition plate.

[0015] Further, the ash chute is fixedly connected with a plurality of supporting legs outside the sidewall, the lower end of the supporting legs is in contact with and fixed to the ground, and the supporting legs jointly support the dust removal tank, the ash chute and the closed air release type ash discharge valve.

[0016] The present application has the following advantages:

[0017] 1. By using the four air inlet pipes and the annular pipe for distributing dust-containing flue gas, the problem of inconsistent filter bag filtering conditions and service life caused by the fact that most fine dust particles stay on the filter bags near the air inlet can be solved by conveying dust-containing flue gas into the dust removal tank from four directions. Moreover, the dust-containing flue gas flowing into the dust removal tank from four directions collides and cancels out at the center of the dust removal tank, thereby avoiding the occurrence of impact vortex and reducing the abrasion of the dust-containing flue gas flow on the inner wall of the dust removal tank and the ash chute. Since the four air inlet pipes are arranged between the ash chute and the partition plate (the middle of the cylindrical filter bag), the dust-containing flue gas flow has little effect on the coarse dust particles falling into the ash chute when entering the dust removal tank, and the generation of secondary dust in the ash chute is prevented.

[0018] 2. By using the rotating ring one rotatable in the annular groove, the flow direction of the dust-containing flue gas into the dust removal tank can be adjusted in circulation by cooperating with the four sets of upper guide vanes, the four sets of middle guide vanes and the four sets of lower guide vanes, so that the dust-containing flue gas can uniformly enter the dust removal tank, and the uniform filtration of the dust-containing flue gas by all the cylindrical filter bags in the dust removal tank is effectively ensured. In addition, cooperating with the cleaning brush one at the back of the supporting square column, the rotating cleaning of the communication port between the annular groove bottom and the air inlet pipe is also achieved, so as to avoid the accumulation of dust particles to block the outlet of the air inlet pipe, and to further ensure the smooth entry of the dust-containing flue gas into the dust removal tank.

[0019] 3. By using the supporting cylinder one, the supporting cylinder two and the supporting cylinder three, the upper guide vanes, the middle guide vanes and the lower guide vanes can be further supported and fixed, respectively. Moreover, the three can also block the flow of the dust-containing flue gas and reduce the speed of the dust-containing flue gas flow, thereby further reducing the influence of the dust-containing flue gas flow on the coarse dust particles falling into the ash chute. Since the number of the supporting cylinder three penetrating each set of lower guide vanes is large and the density is high (from the bottom to the top, the number of the supporting cylinder three penetrating each set of lower guide vanes is 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10, respectively), the speed of the dust-containing flue gas flow can be reduced to the lowest when the dust-containing flue gas flows downward under the guidance of the lower guide vanes, thereby effectively avoiding the impact of high-speed dust-containing flue gas flow on the inner wall of the ash chute and the dust particles settled in the center of the ash chute, further reducing the abrasion of the dust-containing flue gas flow on the inner wall of the ash chute and preventing the generation of secondary dust in the ash chute. Figure 4 BRIEF DESCRIPTION OF DRAWINGS

[0020] ​In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments description. Obviously, the drawings in the following description only show some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of the present embodiment;

[0022] Figure 2 is a structural cross-section of the present embodiment Figure 1 ;

[0023] Figure 3 is a structural cross-section of the present embodiment Figure 2 ;

[0024] Figure 4 is a schematic diagram of the position relationship of the upper guide vane, the middle guide vane and the lower guide vane of the present embodiment;

[0025] Figure 5 is an enlarged view of A of Figure 2 ;

[0026] In the drawings, 1, dust removal tank body; 1a, annular groove; 1b, box body; 1b1, box cover; 1c, communication hole; 1d, annular baffle; 1d1, sealing protrusion; 1d2, arc plate; 1d3, second cleaning brush; 2, partition plate; 2a, filter bag mounting hole; 3, filtering mechanism; 3a, cylindrical filter bag; 3b, cylindrical cage; 4, pulse dust removal mechanism; 4a, compressed air tank; 4b, blowing pipe; 4c, pulse solenoid valve; 4d, blowing port; 5, air inlet pipe; 6, air outlet pipe; 7, annular pipeline; 7a, butterfly valve; 7b, tee pipe; 7c, cross pipe; 7d, arc pipe; 8, ash hopper; 8a, supporting leg; 9, air closing type ash discharge valve; 10, rotating ring one; 101, supporting square column; 101a, first cleaning brush; 102, upper guide vane; 103, middle guide vane; 104, lower guide vane; 105, supporting cylinder one; 106, supporting cylinder two; 107, supporting cylinder three; 11, rotating mechanism; 111, rotating ring two; 111a, sealing groove; 112, gear ring; 113, driving gear; 114, motor; 12, tank cover. DETAILED DESCRIPTION

[0027] The technical solutions of the present application will be described clearly and completely in the following in combination with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0028] Example: A dust collector air inlet device, such as Figures 1-4 As shown, it includes a dust collector tank 1, a partition 2 horizontally fixed inside the dust collector tank 1, multiple sets of filter mechanisms 3 evenly arranged on the partition 2 to filter dust-laden gas, a pulse cleaning mechanism 4 set on the top of the dust collector tank 1 to automatically clean the filter mechanism 3, four air inlet pipes 5 evenly arranged on the body of the dust collector tank 1 and located below the partition 2, an air outlet pipe 6 set on the body of the dust collector tank 1 and located above the partition 2, an annular pipe 7 connecting all the air inlet pipes 5, a hopper 8 set at the bottom of the dust collector tank 1 and shaped like a hopper, and a closed-type ash discharge valve 9 fixedly installed at the ash discharge port of the ash hopper 8.

[0029] The annular duct 7 includes four butterfly valves 7a, three tee pipes 7b, one four-way pipe 7c, and four arc-shaped pipes 7d. One end of each of the four butterfly valves 7a is connected to the air inlet pipe 5. One end of each of the three tee pipes 7b is connected to the other end of each of the three butterfly valves 7a. One end of the four-way pipe 7c is connected to the other end of the remaining butterfly valve 7a. One end of each of the two arc-shaped pipes 7d is connected to both ends of the four-way pipe 7c, and the other end is connected to one end of each of the two tee pipes 7b adjacent to the four-way pipe 7c. One end of each of the other two arc-shaped pipes 7d is connected to both ends of one tee pipe 7b, and the other end is connected to the remaining end of each of the two tee pipes 7b adjacent to the four-way pipe 7c. The remaining end of the four-way pipe 7c is connected to the conveying pipe for transporting dust-laden flue gas.

[0030] By adopting the above technical solution, when the conveying pipe transports the dust-laden flue gas into the four-way pipe 7c, the dust-laden flue gas first passes through the annular pipe 7 composed of the four-way pipe 7c, the three-way pipe 7b, the arc-shaped pipe 7d and the butterfly valve 7a, and is divided into four streams that enter the four air inlet pipes 5 respectively. Then, the four streams of dust-laden flue gas pass through the four air inlet pipes 5 respectively and enter the dust collection tank 1 evenly and smoothly in four mutually perpendicular directions. Then, the filter mechanism 3 on the baffle 2 will purify and filter the toxic and harmful dust particles in the dust-laden flue gas, and finally discharge it outside the dust collection tank 1 through the air outlet pipe 6. The method of supplying dust-laden flue gas into the dust collector 1 from four directions not only solves the problem of inconsistent filter bag conditions and lifespan caused by most fine dust particles being retained on the filter bags near the air inlet, but also ensures that the dust-laden flue gas flow entering the dust collector 1 from four directions will collide and cancel each other out at the center of the dust collector 1, thereby avoiding the formation of impact eddies and reducing the wear of the dust-laden flue gas flow on the inner walls of the dust collector 1 and the ash hopper 8. At the same time, since the four air inlet pipes 5 are all located between the ash hopper 8 and the baffle 2 (between the cylindrical filter bags 3a), the dust-laden flue gas flow has little impact on the falling of coarse dust particles into the ash hopper 8 when entering the dust collector 1, and it can prevent the generation of secondary dust inside the ash hopper 8. The four butterfly valves 7a can not only control the opening and closing of the four air inlet pipes 5 respectively, but also adjust the flow rate of the dust-laden flue gas to ensure that the dust-laden flue gas is evenly distributed into the four air inlet pipes 5.

[0031] As Figures 2-4 shown, a ring-shaped groove 1a is arranged on the inner wall of the dust removal tank body 1, and four air inlet pipes 5 are connected to the inside of the ring-shaped groove 1a, a rotating ring 10 is arranged horizontally in the ring-shaped groove 1a, a rotating mechanism 11 is arranged on the tank body 1 to drive the rotating ring 10 to rotate, twelve vertical support square columns 101 are uniformly arranged on the top of the rotating ring 10, a plurality of upper guide vanes 102, middle guide vanes 103 or lower guide vanes 104 are connected between adjacent two support square columns 101, the upper guide vanes 102, the middle guide vanes 103 and the lower guide vanes 104 are in circular arc shape, the upper guide vanes 102 are inclined upward, the middle guide vanes 103 are horizontal and flat, and the lower guide vanes 104 are inclined downward, the upper guide vanes 102, the middle guide vanes 103 and the lower guide vanes 104 are divided into four groups, the four groups of upper guide vanes 102, the four groups of middle guide vanes 103 or the four groups of lower guide vanes 104 are arranged between the four pairs of support square columns 101, and the four groups of upper guide vanes 102, the four groups of middle guide vanes 103 and the four groups of lower guide vanes 104 are arranged in turn on the rotating ring 10 in clockwise or counterclockwise direction, and each group of middle guide vanes 103 is arranged between a group of upper guide vanes 102 and a group of guide vanes.

[0032] By adopting the above-mentioned ring-shaped groove 1a, rotating ring 10 and other structures, when the dust-containing flue gas enters the dust removal tank body 1 through the air inlet pipe 5, the rotating mechanism 11 drives the rotating ring 10 to rotate relative to the ring-shaped groove 1a, then each group of upper guide vanes 102, middle guide vanes 103 and lower guide vanes 104 is driven by the rotating ring 10 in turn to pass through the air inlet pipe 5 and the connecting port between the inner wall of the dust removal tank body 1 (i.e. the outlet of the air inlet pipe 5), because the upper guide vanes 102 are inclined upward, the middle guide vanes 103 are horizontal and flat, and the lower guide vanes 104 are inclined downward, the above-mentioned upper guide vanes 102, middle guide vanes 103 and lower guide vanes 104 can control the dust-containing flue gas to flow upward, horizontally and downward in turn, so that the dust-containing flue gas can uniformly enter the inside of the dust removal tank body 1, and all the filter mechanisms 3 can uniformly filter the dust-containing flue gas.

[0033] Wherein, since the four groups of upper guide vanes 102, the four groups of middle guide vanes 103 and the four groups of lower guide vanes 104 are arranged in turn in the clockwise or counterclockwise direction on the rotating ring 10, and each group of middle guide vanes 103 is located between a group of upper guide vanes 102 and a group of guide vanes, the dust-containing flue gas flow from the four air inlet pipes 5 outlets will not only flow in the same direction upward or horizontally or downward to ensure that the four dust-containing flue gas flows can collide and cancel in the center of the dust removal tank body 1, but also will circulate and repeatedly flow upward, horizontally and downward in turn, thereby further ensuring that the dust-containing flue gas can enter the inside of the dust removal tank body 1 evenly.

[0034] As shown in Figure 1 , Figure 2 , Figure 5 , the rotating mechanism 11 includes a rotating ring 111 fixedly connected to the top of all support square columns 101 and parallel to the rotating ring 110, a gear ring 112 fixedly arranged horizontally on the top of the rotating ring 111, a driving gear 113 rotatingly engaged with the gear ring 112, a motor 114 driving the driving gear 113 to rotate, a box body 1b with an opening upward and accommodating the driving gear 113 fixedly arranged on the outer wall of the dust removal tank body 1, a box cover 1b1 screw-fixedly arranged on the top of the box body 1b and closing the opening, the motor 114 fixedly arranged on the top of the box cover 1b1, and the output end of the motor 114 penetrating through the box cover 1b1 and connected to the driving gear 113, and a communication hole 1c communicating the box body 1b and the annular groove 1a arranged on the tank body 1, and the driving gear 113 inside the box body 1 penetrating through the communication hole 1c and engaged with the gear ring 112 inside the dust removal tank body 1.

[0035] By adopting the above rotating mechanism 11, when it is needed to drive the rotating ring 110 to rotate, the motor 114 drives the driving gear 113 to rotate first, then the driving gear 113 engages with the transmission gear ring 112, so that the gear ring 112 drives the rotating ring 111 to rotate, since the rotating ring 110 and the rotating ring 111 are coaxial and connected through the support square column 101, finally the rotating ring 110 and the rotating ring 111 will rotate synchronously, and drive the above-mentioned groups of upper guide vanes 102, middle guide vanes 103 and lower guide vanes 104 to pass through the air inlet pipe 5 outlet in turn. Wherein, the box body 1b and the box cover 1b1 on the outer wall of the dust removal tank body 1 can not only provide a mounting and fixing position for the motor 114 and a safe space for the driving gear 113, but also can facilitate the staff to check and maintain the parts of the rotating mechanism 11 at any time, so as to ensure the stable operation of the rotating mechanism 11.

[0036] As shown in Figures 2-5As shown, the top wall of the annular groove 1a is fixedly provided with a ring-shaped baffle 1d shielding the rotating ring 111 and the gear ring 112, the outer profile surface of the rotating ring 111 closely abuts the side wall of the annular groove 1a, and the inner profile surface of the rotating ring 111 closely abuts the outer profile surface of the ring-shaped baffle 1d, a sealing groove 111a is formed on the inner profile surface of the rotating ring 111, and the outer profile surface of the ring-shaped baffle 1d is fixedly provided with a ring of sealing protrusions 1d1 embeddedly sealing the sealing groove 111a. By adopting the rotating connection structure of the ring-shaped baffle 1d and the rotating ring 111, the gear ring 112 can be effectively protected from contacting the dust-containing flue gas, and the dust-containing flue gas can be prevented from leaking through the gap between the communicating hole 1c, the box cover 1b1 and the box body 1b.

[0037] As shown in the figure, Figure 4 The rotating ring 111 and the rotating ring 111 are fixedly connected by a plurality of vertical support cylinders 105, and the support cylinders 105 are fixedly penetrated through the upper guide vane 102. The rotating ring 111 and the rotating ring 111 are fixedly connected by a plurality of vertical support cylinders 106, and the support cylinders 106 are fixedly penetrated through the middle guide vane 103. The rotating ring 111 and the rotating ring 111 are fixedly connected by a plurality of vertical support cylinders 107, and the support cylinders 107 are fixedly penetrated through the lower guide vane 104. The support cylinders 105, the support cylinders 106 and the support cylinders 107 are respectively four groups, and each group of support cylinders 105 or support cylinders 106 or support cylinders 107 is located between the adjacent two support square columns 101. The number of each group of support cylinders 105 is less than that of each group of support cylinders 106, and the number of each group of support cylinders 106 is less than that of each group of support cylinders 107.

[0038] By adopting the support cylinders 105, the support cylinders 106 and the support cylinders 107, the upper guide vane 102, the middle guide vane 103 and the lower guide vane 104 can be further supported and fixed respectively, and the dust-containing flue gas flow can be blocked to reduce the flow velocity of the dust-containing flue gas, thereby further reducing the influence of the dust-containing flue gas flow on the coarse dust falling into the ash bucket 8. Since the number of the support cylinders 107 penetrating through each group of lower guide vanes 104 is large and the density is high (as can be seen from the fact that the number of each group of support cylinders 105 is less than that of each group of support cylinders 106, and the number of each group of support cylinders 106 is less than that of each group of support cylinders 107), when the dust-containing flue gas flows downward under the guidance of the lower guide vanes 104, the flow velocity of the dust-containing flue gas can be reduced to the lowest, thereby effectively avoiding the impact of high-speed dust-containing flue gas flow on the inner wall of the ash bucket 8 and the dust particles settled in the center of the ash bucket 8, further reducing the wear of the inner wall of the ash bucket 8 by the dust-containing flue gas flow and preventing the generation of secondary dust in the ash bucket 8.

[0039] As Figure 4 shown, the side of the support square column 101 facing the bottom of the annular groove 1a is provided with a cleaning brush 101a, and the cleaning brush 101a cooperates with the movement of the support square column 101 to clean the bottom of the annular groove 1a. The outer contour surface of the rotating circular ring 10 is closely attached to the bottom of the annular groove 1a, the inner contour of the rotating circular ring 10 is flush with the inner wall of the dust removal tank 1, and the top of the rotating circular ring 10 is inclined downward.

[0040] By adopting the cleaning brush 101a on the back of the support square column 101, the communication port of the annular groove 1a and the inlet pipe 5 (i.e. the outlet of the inlet pipe 5) can be automatically cleaned in cooperation with the rotation of the rotating circular ring 10, thereby avoiding dust particles from accumulating and blocking the outlet of the inlet pipe 5, and further ensuring that the dust-containing flue gas can smoothly enter the dust removal tank 1. Since the outer contour surface of the rotating circular ring 10 is closely attached to the bottom of the annular groove 1a, the inner contour of the rotating circular ring 10 is flush with the inner wall of the dust removal tank 1, and the top of the rotating circular ring 10 is inclined downward, the dust cleaned from the bottom of the annular groove 1a by the cleaning brush 101a will all fall into the ash bucket 8 under the guidance of the inclined surface at the top of the rotating circular ring 10, thereby avoiding dust accumulation at the top of the rotating circular ring 10.

[0041] As Figure 4 shown, the bottom of the annular baffle 1d is uniformly fixedly connected with a plurality of arc-shaped plates 1d2, all the arc-shaped plates 1d2 are coaxial with the annular baffle 1d, the side of the arc-shaped plate 1d2 facing the bottom of the annular groove 1a is fixedly provided with a cleaning brush 1d3, and the cleaning brush 1d3 cooperates with the rotating movement of the rotating circular ring 10 or the rotating circular ring 11 to clean the support square column 101, the upper guide vane 102, the middle guide vane 103 and the lower guide vane 104. By adopting the arc-shaped plate 1d2 and the cleaning brush 1d3 on the back thereof, the residual particles on the support square column 101, the upper guide vane 102, the middle guide vane 103 and the lower guide vane 104 can be automatically cleaned in cooperation with the rotation of the rotating circular ring 10, thereby ensuring that the dust-containing flue gas can smoothly pass through the vanes and the columns.

[0042] As Figure 3 shown, the filter mechanism 3 includes a cylindrical filter bag 3a and a cylindrical cage 3b. The filter bag mounting hole 2a is formed in the partition plate 2, and the head of the cylindrical filter bag 3a is clamped and fixed in the filter bag mounting hole 2a. The cylindrical cage 3b is inserted into the inside of the cylindrical filter bag 3a from the top of the partition plate 2, and supports the cylindrical filter bag 3a to maintain the shape of the cylinder. By adopting the above-mentioned filter mechanism 3, the dust-containing flue gas can be effectively filtered and purified.

[0043] As Figures 1-3As shown, the top of the dust removal tank body 1 is open, and the tank cover 12 is bolted, and the pulse dust cleaning mechanism 4 is arranged on the tank cover 12. By adopting the detachable connection of the tank cover 12 and the dust removal tank body 1, not only can the staff conveniently install and maintain the internal parts of the dust removal tank body 1, but also can provide installation and fixing position for the parts in the pulse dust cleaning mechanism 4.

[0044] As shown in Figure 2 , Figure 3 The pulse dust cleaning mechanism 4 includes a compressed air tank 4a fixed on the top of the tank cover 12, a blowpipe 4b fixed on the bottom of the tank cover 12 and above the partition plate 2, a pulse solenoid valve 4c with multiple input ends connected to the compressed air tank 4a and the output end connected to the blowpipe 4b, the pulse solenoid valve 4c is located on the top of the tank cover 12, and the pulse solenoid output end penetrates the tank cover 12 and connects the blowpipe 4b, multiple vertical downward blowpipes 4d are uniformly arranged on the blowpipe 4b, and all the blowpipes 4d are sequentially aligned with all the filter bag mounting holes 2a on the partition plate 2. By adopting the above-mentioned pulse dust cleaning mechanism 4, pulse air flow can be sprayed into the inside of all the cylindrical filter bags 3a when needed, so as to strip the dust accumulated on the outer surface of the cylindrical filter bags 3a and make it fall into the ash bucket 8.

[0045] As shown in Figures 1-3 The outer wall of the ash bucket 8 is fixedly connected with multiple supporting legs 8a, the lower end of the supporting leg 8a contacts and is fixed on the ground, and jointly supports and lifts the dust removal tank body 1, the ash bucket 8 and the closed wind type ash valve 9. By adopting the above-mentioned supporting leg 8a, not only can the dust removal tank body 1 be supported and fixed, but also the ash bucket 8 and the closed wind type ash valve 9 can be lifted to facilitate the connection of the dust conveying pipeline or container.

Claims

1. An air intake device for a dust collector, comprising: The dust removal tank (1) is provided with a ring-shaped groove (1a) on the inner wall, and the four air inlet pipes (5) are connected to the inside of the ring-shaped groove (1a) in common, a rotating circular ring (10) is arranged horizontally in the ring-shaped groove (1a), a rotating mechanism (11) is arranged on the tank body of the dust removal tank (1) to drive the rotation of the rotating circular ring (10), twelve vertical support square columns (101) are uniformly arranged on the top of the rotating circular ring (10), a plurality of upper guide vanes (102), middle guide vanes (103) or lower guide vanes (104) are arranged in parallel between the adjacent two support square columns (101), the upper guide vanes (102), the middle guide vanes (103) and the lower guide vanes (104) are in circular arc shape, the upper guide vanes (102) are inclined upward, the middle guide vanes (103) are horizontal, and the lower guide vanes (104) are inclined downward, the upper guide vanes (102), the middle guide vanes (103) and the lower guide vanes (104) are respectively arranged in four groups, the four groups of upper guide vanes (102), the four groups of middle guide vanes (103) or the four groups of lower guide vanes (104) are arranged between the four pairs of support square columns (101), the four groups of upper guide vanes (102), the four groups of middle guide vanes (103) and the four groups of lower guide vanes (104) are arranged in turn in clockwise or counterclockwise direction on the rotating circular ring (10), and each group of middle guide vanes (103) is arranged between a group of upper guide vanes (102) and a group of guide vanes. The dust removal tank (1) is provided with a ring-shaped groove (1a) on the inner wall, and the four air inlet pipes (5) are connected to the inside of the ring-shaped groove (1a) in common, a rotating circular ring (10) is arranged horizontally in the ring-shaped groove (1a), a rotating mechanism (11) is arranged on the tank body of the dust removal tank (1) to drive the rotation of the rotating circular ring (10), twelve vertical support square columns (101) are uniformly arranged on the top of the rotating circular ring (10), a plurality of upper guide vanes (102), middle guide vanes (103) or lower guide vanes (104) are arranged in parallel between the adjacent two support square columns (101), the upper guide vanes (102), the middle guide vanes (103) and the lower guide vanes (104) are in circular arc shape, the upper guide vanes (102) are inclined upward, the middle guide vanes (103) are horizontal, and the lower guide vanes (104) are inclined downward, the upper guide vanes (102), the middle guide vanes (103) and the lower guide vanes (104) are respectively arranged in four groups, the four groups of upper guide vanes (102), the four groups of middle guide vanes (103) or the four groups of lower guide vanes (104) are arranged between the four pairs of support square columns (101), the four groups of upper guide vanes (102), the four groups of middle guide vanes (103) and the four groups of lower guide vanes (104) are arranged in turn in clockwise or counterclockwise direction on the rotating circular ring (10), and each group of middle guide vanes (103) is arranged between a group of upper guide vanes (102) and a group of guide vanes. ​ 2. A dust collector air inlet device according to claim 1, wherein: The rotating mechanism (11) includes a rotating ring two (111) fixedly connected to the top ends of all the support square columns (101) and parallel to the rotating ring one (10), a gear ring (112) horizontally fixed to the top of the rotating ring two (111), a driving gear (113) rotatingly engaged with the gear ring (112), and a motor (114) driving the rotating of the driving gear (113). The dust removal tank body (1) is provided with a box body (1b) fixedly arranged on the outer wall of the dust removal tank body (1) and having an opening upward and accommodating the driving gear (113), and a box cover (1b1) screw-fixedly arranged on the top of the box body (1b) and closing the opening. The motor (114) is fixed to the top of the box cover (1b1), and the output end of the motor (114) is connected to the driving gear (113) through the box cover (1b1). The dust removal tank body (1) is provided with a communication hole (1c) communicating the box body (1b) and the annular groove (1a), and the driving gear (113) in the box body (1b) is engaged with the gear ring (112) in the dust removal tank body (1) through the communication hole (1c).

3. A dust collector air inlet arrangement according to claim 2, wherein: The top wall of the annular groove (1a) is fixedly provided with a ring-shaped baffle (1d) shielding the rotating ring two (111) and the gear ring (112). The outer profile surface of the rotating ring two (111) is tightly fitted with the side wall of the annular groove (1a), and the inner profile surface of the rotating ring two (111) is tightly fitted with the outer profile surface of the ring-shaped baffle (1d). The inner profile surface of the rotating ring two (111) is provided with a sealing groove (111a), and the outer profile surface of the ring-shaped baffle (1d) is fixedly provided with a ring of sealing protrusions (1d1) rotatably embedded in the sealing groove (111a).

4. A dust collector air inlet arrangement according to claim 3, wherein: A plurality of vertical support cylinders one (105) are fixedly connected between the rotating ring one (10) and the rotating ring two (111), and the support cylinders one (105) are fixedly passed through the upper guide vanes (102). A plurality of vertical support cylinders two (106) are fixedly connected between the rotating ring one (10) and the rotating ring two (111), and the support cylinders two (106) are fixedly passed through the middle guide vanes (103). A plurality of vertical support cylinders three (107) are fixedly connected between the rotating ring one (10) and the rotating ring two (111), and the support cylinders three (107) are fixedly passed through the lower guide vanes (104). The support cylinders one (105), the support cylinders two (106), and the support cylinders three (107) are respectively provided with four groups, and each group of the support cylinders one (105), the support cylinders two (106), or the support cylinders three (107) is located between two adjacent support square columns (101). The number of the support cylinders one (105) in each group is less than that of the support cylinders two (106) in each group, and the number of the support cylinders two (106) in each group is less than that of the support cylinders three (107) in each group.

5. A dust collector air inlet arrangement according to claim 4, wherein: The support square column (101) is provided with a cleaning brush I (101a) on the side facing the bottom of the annular groove (1a), and the cleaning brush I (101a) cleans the bottom of the annular groove (1a) in cooperation with the moving motion of the support square column (101). The outer contour surface of the rotating ring I (10) is closely attached to the bottom of the annular groove (1a), the inner contour of the rotating ring I (10) is flush with the inner wall of the dust removal tank (1), and the top of the rotating ring I (10) is inclined downward. The bottom of the annular baffle (1d) is uniformly connected with a plurality of arc plates (1d2), and all the arc plates (1d2) and the annular baffle (1d) are coaxial. The arc plate (1d2) is fixedly provided with a cleaning brush II (1d3) on the side facing the bottom of the annular groove (1a), and the cleaning brush II (1d3) cleans the support square column (101), the upper guide vane (102), the middle guide vane (103) and the lower guide vane (104) in cooperation with the rotating motion of the rotating ring I (10) or the rotating ring II (111).

6. A dust collector air inlet device according to claim 1, wherein: The filter mechanism (3) comprises a cylindrical filter bag (3a) and a cylindrical cage (3b). The partition plate (2) is provided with a filter bag mounting hole (2a), and the head of the cylindrical filter bag (3a) is clamped and fixed in the filter bag mounting hole (2a). The cylindrical cage (3b) is inserted into the inside of the cylindrical filter bag (3a) from the top of the partition plate (2), and supports the cylindrical filter bag (3a) to keep the shape of the cylinder.

7. A dust collector air inlet arrangement according to claim 6, wherein: The dust removal tank (1) is open at the top and is bolted with a tank cover (12). The pulse dust cleaning mechanism (4) is arranged on the tank cover (12).

8. A dust collector air inlet arrangement according to claim 7, wherein: The pulse dust cleaning mechanism (4) comprises a compressed air tank (4a) fixed on the top of the tank cover (12), a blowing pipe (4b) fixed on the bottom of the tank cover (12) and located above the partition plate (2), a plurality of pulse electromagnetic valves (4c) having input ends connected to the compressed air tank (4a) and output ends commonly connected to the blowing pipe (4b). The pulse electromagnetic valve (4c) is located on the top of the tank cover (12), and the pulse electromagnetic output end penetrates through the tank cover (12) to connect the blowing pipe (4b). The blowing pipe (4b) is uniformly provided with a plurality of vertical downward blowing ports (4d), and all the blowing ports (4d) are sequentially aligned with all the filter bag mounting holes (2a) on the partition plate (2).

9. A dust collector air inlet device according to claim 1, wherein: The outer side wall of the ash bucket (8) is fixedly connected with a plurality of support legs (8a), the lower ends of the support legs (8a) are in contact with and fixed to the ground, and jointly support the dust removal tank (1), the ash bucket (8) and the air shut-off type unloading valve (9).

Images