Air inlet device of dust remover

Abstract

The invention discloses an air inlet device of a dust remover. Comprising a dust removal tank body, a partition plate horizontally fixed in the dust removal tank body, a plurality of groups of filtering mechanisms uniformly arranged on the partition plate and used for filtering dust-containing gas, a pulse dust removal mechanism arranged at the top of the dust removal tank body and used for automatically removing dust from the filtering mechanisms, and four air inlet pipes uniformly arranged on the body of the dust removal tank body and positioned below the partition plate, the annular pipeline is communicated with all the air inlet pipes; the ash hopper is arranged at the bottom of the dust removal tank body and is in a hopper shape; the closed air type ash discharging valve is fixedly mounted at an ash discharging opening of the ash hopper; and the annular pipeline comprises four butterfly valves, three three-way pipes, a four-way pipe and four arc-shaped pipes. The dust hopper has the following advantages and effects: the dust hopper has the effects of preventing dust-containing flue gas from forming impact vortex in the dust hopper and ensuring that all the filter bags uniformly filter the dust-containing flue gas.

Description

Technical Field

[0001] The present invention relates to the technical field of dust collectors, and in particular to an air inlet device for a dust collector. Background Art

[0002] Currently, factories generate large amounts of flue gas during their production processes. This flue gas often contains a high level of toxic and harmful dust. If discharged directly into the air, it would cause significant environmental pollution. Therefore, the flue gas needs to be dust-removed and purified before it enters the atmosphere. Existing flue gas dust removal and purification typically utilizes a pulse bag dust collector. Its operating principle is that dust-laden flue gas enters the ash hopper through the air inlet duct, with coarse dust particles falling directly into the bottom of the ash hopper. Fine dust particles follow the airflow upward into the middle and lower chambers, where dust accumulates on the outer surfaces of the filter bags. The filtered gas enters the upper chamber and reaches the clean air manifold—the exhaust duct—before being discharged into the atmosphere via an exhaust fan. To clean the dust, the clean air outlet duct of the chamber is first shut off, leaving the bag in a state of no airflow (shutting down the air in each chamber for cleaning). Then, the pulse valve is opened to perform pulsed cleaning with compressed air, which removes dust accumulated on the outer surface of the filter bag and allows it to settle into the ash hopper.

[0003] However, existing pulse bag dust collectors usually have only one air inlet. When the dust-laden flue gas flows into the ash hopper through this air inlet, it is easy to form impact vortices inside the ash hopper, which not only wears the inner wall of the ash hopper, but also affects the coarse dust particles from falling into the ash hopper, causing secondary dusting and increasing the operating resistance of the dust collector. At the same time, most of the fine dust particles tend to first contact and remain on the filter bags near the air inlet, resulting in different filtration conditions and uneven service life of all filter bags of the dust collector. Summary of the Invention

[0004] The object of the present invention is to provide an air inlet device for a dust collector, which has the effect of preventing dust-laden flue gas from forming impact vortices inside the ash hopper and ensuring that all filter bags evenly filter the dust-laden flue gas.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: an air inlet device for a dust collector, comprising a dust removal tank body, a partition fixed horizontally inside the dust removal tank body, a plurality of filter mechanisms evenly arranged on the partitions and filtering dust-laden gas, a pulse cleaning mechanism arranged on the top of the dust removal tank body and automatically cleaning the filter mechanisms, four air inlet pipes evenly arranged on the dust removal tank body and located below the partitions, an air outlet pipe arranged on the dust removal tank body and located above the partitions, an annular pipe connecting all the air inlet pipes, a hopper-shaped ash hopper arranged at the bottom of the dust removal tank body, and an air-blocking ash discharge valve fixedly installed at the ash hopper discharge port;

[0006] The annular pipeline includes four butterfly valves, three tees, a four-way pipe, and four arc pipes. One end of the four butterfly valves is respectively connected to the water inlet pipe, one end of the three tees is respectively connected to the other end of the three butterfly valves, one end of the four-way pipe is connected to the other end of the remaining butterfly valve, one end of the two arc pipes is connected to the two ends of the four-way pipe, and the other end is respectively connected to one end of two three-way pipes adjacent to the four-way pipe, one end of the other two arc pipes is respectively connected to the two ends of a three-way pipe, and the other end is respectively connected to the remaining end of two three-way pipes adjacent to the four-way pipe, and the remaining end of the four-way pipe is connected to the conveying pipe for conveying dust-laden flue gas.

[0007] The present invention is further configured as follows: a circle of annular grooves is provided on the inner wall of the dust removal tank body, and four air inlet pipes are connected to the inside of the annular groove; a rotating ring 1 is provided in the inner side of the annular groove for horizontal rotation; a rotating mechanism for driving the rotating ring 1 to rotate is provided on the body of the dust removal tank body; twelve vertical supporting square columns are evenly fixed on the top of the rotating ring 1; a plurality of upper guide blades, middle guide blades or lower guide blades arranged in parallel up and down are connected between two adjacent supporting square columns; the upper guide blades, middle guide blades and lower guide blades are connected together; The guide blades are respectively in the shape of an arc, and the upper guide blades are inclined upward, the middle guide blades are horizontal and straight, and the lower guide blades are inclined downward. There are four groups of upper guide blades, middle guide blades and lower guide blades respectively, and the four groups of upper guide blades or the four groups of middle guide blades or the four groups of lower guide blades are respectively located between four pairs of supporting square columns. The four groups of upper guide blades, the four groups of middle guide blades and the four groups of lower guide blades are arranged in sequence in a clockwise or counterclockwise direction on the rotating ring, and each group of middle guide blades is located between a group of upper guide blades and a group of guide blades.

[0008] The present invention is further configured as follows: the rotating mechanism includes a rotating ring 2 fixedly connected to the top of all supporting square columns and parallel to the rotating ring 1, a gear ring horizontally fixed to the top of the rotating ring 2, a driving gear that rotatably engages the gear ring, and a motor that drives the driving gear to rotate; a box body with an opening facing upward and accommodating the driving gear is fixed on the outer wall of the dust removal tank body, and a box cover with a closed opening is screwed to the top of the box body; the motor is fixed to the top of the box cover, and the output end of the motor passes through the box cover to connect to the driving gear; a connecting hole connecting the box body and the annular groove is provided on the body of the dust removal tank body, and the driving gear inside the box body passes through the connecting hole to engage with the gear ring inside the dust removal tank body.

[0009] The present invention is further configured as follows: a circle of annular baffles that shield the rotating ring 2 and the gear ring is fixedly provided on the top wall of the annular groove, the outer contour surface of the rotating ring 2 is tightly fitted with the side wall of the annular groove, the inner contour surface of the rotating ring 2 is tightly fitted with the outer contour surface of the annular baffle, a sealing groove is provided on the inner contour surface of the rotating ring 2, and a circle of sealing protrusions that rotatably engage the sealing groove are fixedly provided on the outer contour surface of the annular baffle.

[0010] The present invention is further configured as follows: a plurality of vertical supporting cylinders 1 are fixedly connected between the rotating ring 1 and the rotating ring 2, and the supporting cylinder 1 is fixedly passed through the upper guide vane, a plurality of vertical supporting cylinders 2 are fixedly connected between the rotating ring 1 and the rotating ring 2, and the supporting cylinder 2 is fixedly passed through the middle guide vane, a plurality of vertical supporting cylinders 3 are fixedly connected between the rotating ring 1 and the rotating ring 2, and the supporting cylinder 3 is fixedly passed through the lower guide vane, the supporting cylinders 1, 2 and 3 are respectively in four groups, and each group of supporting cylinders 1 or supporting cylinders 2 or supporting cylinders 3 is located between two adjacent supporting square cylinders, the number of individual supporting cylinders in each group of supporting cylinders 1 is less than the number of individual supporting cylinders in each group of supporting cylinders 2, and the number of individual supporting cylinders in each group of supporting cylinders 2 is less than the number of individual supporting cylinders in each group of supporting cylinders 3.

[0011] The present invention is further configured as follows: a cleaning brush is provided on the side of the supporting square column facing the bottom of the annular groove, and the cleaning brush cooperates with the moving movement of the supporting square column to clean the bottom of the annular groove, the outer contour surface of the rotating ring one is tightly fitted with the bottom of the annular groove, the inner contour of the rotating ring one is flush with the inner wall of the dust removal tank, and the top of the rotating ring one is inclined downward; a plurality of arc plates are evenly fixedly connected to the bottom of the annular baffle, and all the arc plates and the annular baffle are coaxial, a cleaning brush is fixedly provided on the side of the arc plate facing the bottom of the annular groove, and the cleaning brush cooperates with the rotating movement of the rotating ring one or the rotating ring two to clean the supporting square column, the upper guide blade, the middle guide blade and the lower guide blade.

[0012] The present invention is further configured as follows: the filtering mechanism includes a cylindrical filter bag and a cylindrical cage frame, a filter bag mounting hole is opened on the partition, and the head of the cylindrical filter bag is clamped and fixed in the filter bag mounting hole, the cylindrical cage frame is inserted into the interior of the cylindrical filter bag from the top of the partition, and supports the cylindrical filter bag to maintain the cylindrical shape.

[0013] The present invention is further configured as follows: the top of the dust removal tank body is open, and a tank cover is fixed with bolts, and the pulse cleaning mechanism is arranged on the tank cover.

[0014] The present invention is further configured as follows: the pulse cleaning mechanism includes a compressed air tank fixed to the top of the tank cover, a blow pipe fixed to the bottom of the tank cover and located above the partition, and a plurality of pulse solenoid valves whose input ends are connected to the compressed air tank and whose output ends are commonly connected to the blow pipe. The pulse solenoid valve is located at the top of the tank cover, and the pulse solenoid output end passes through the tank cover to connect to the blow pipe. The blow pipe is evenly provided with a plurality of vertical downward blow ports, and all the blow ports are aligned with all the filter bag mounting holes on the partition in sequence.

[0015] The present invention is further configured as follows: a plurality of support legs are fixedly connected to the outer side wall of the ash hopper, the lower ends of the support legs are in contact with and fixed on the ground, and jointly support and lift the dust removal tank body, the ash hopper and the air-closing ash unloading valve.

[0016] The beneficial effects of the present invention are:

[0017] 1. By adopting the above-mentioned four air inlet ducts and the annular duct for distributing dust-laden flue gas, not only can the problem of inconsistent filtering conditions and service life of the dust collector filter bags caused by most of the fine dust particles being retained on the filter bags near the air inlet be solved by transporting the dust-laden flue gas to the inside of the dust collector tank in four directions, but also the dust-laden flue gas airflows entering the dust collector tank from four directions will collide and offset each other in the center of the dust collector tank, thereby avoiding the occurrence of impact vortices and reducing the wear of the dust-laden flue gas airflow on the inner wall of the dust collector tank and the ash hopper. At the same time, since the four air inlet ducts are all arranged between the ash hopper and the partition (in the middle of the cylindrical filter bag), the dust-laden flue gas airflow has little effect on the coarse dust particles falling into the ash hopper when entering the dust collector tank, and will definitely prevent the generation of secondary dust inside the ash hopper.

[0018] 2. By adopting the rotating ring rotatable in the annular groove, it can not only cooperate with the four groups of upper guide blades, the four groups of middle guide blades and the four groups of lower guide blades to cyclically adjust the flow direction of the dust-laden flue gas into the dust removal tank body, so that the dust-laden flue gas can evenly enter the dust removal tank body and effectively ensure that all the cylindrical filter bags in the dust removal tank body evenly filter the dust-laden flue gas, but also cooperate with the cleaning brush 1 on the back of the supporting square column to rotate and clean the connecting port between the bottom of the annular groove and the air inlet pipe, thereby preventing dust particles from accumulating and blocking the outlet of the air inlet pipe, so as to further ensure that the dust-laden flue gas smoothly enters the dust removal tank body.

[0019] 3. By adopting the above-mentioned support cylinder 1, support cylinder 2 and support cylinder 3, not only can the upper guide vane, middle guide vane and lower guide vane be further supported and fixed respectively, but the three can also block the flow of dust-laden flue gas to a certain extent, reduce the speed of dust-laden flue gas flow, and further reduce the influence of dust-laden flue gas flow on coarse dust particles falling into the ash hopper. At the same time, since the number of support cylinders 3 passing through each group of lower guide vanes is large and the density is high (from Figure 4 Therefore, when the dust-laden flue gas flows downward under the guidance of the lower guide vane, the dust-laden flue gas airflow velocity can be reduced to a minimum, thereby effectively avoiding the high-speed dust-laden flue gas airflow from impacting the inner wall of the ash hopper and the dust particles settling in the center of the ash hopper, further reducing the wear of the dust-laden flue gas airflow on the inner wall of the ash hopper and preventing the generation of secondary dust inside the ash hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 2 is a schematic diagram of the three-dimensional structure of this embodiment;

[0022] Figure 2 This is a cross-sectional view of the structure of this embodiment Figure 1 ;

[0023] Figure 3 This is a cross-sectional view of the structure of this embodiment Figure 2 ;

[0024] Figure 4 Schematic diagram of the positional relationship among the upper guide vane, middle guide vane, and lower guide vane of this embodiment;

[0025] Figure 5 yes Figure 2 A magnified view of point A;

[0026] In the figure, 1, dust removal tank body; 1a, annular groove; 1b, box body; 1b1, box cover; 1c, connecting hole; 1d, annular baffle; 1d1, sealing protrusion; 1d2, curved plate; 1d3, cleaning brush 2; 2, partition; 2a, filter bag installation hole; 3, filtering mechanism; 3a, cylindrical filter bag; 3b, cylindrical cage frame; 4, pulse cleaning mechanism; 4a, compressed air tank; 4b, injection pipe; 4c, pulse solenoid valve; 4d, injection port; 5, air inlet pipe; 6, air outlet pipe; 7, annular pipe; 7a, butterfly valve; 7b, three-way pipe ; 7c, four-way pipe; 7d, curved pipe; 8, ash hopper; 8a, supporting foot; 9, air-closed ash unloading valve; 10, rotating ring one; 101, supporting square column; 101a, cleaning brush one; 102, upper guide blade; 103, middle guide blade; 104, lower guide blade; 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 invention will be described clearly and completely below with reference to specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0028] Embodiment: A dust collector air inlet device, such as Figure 1-4 As shown, it includes a dust removal tank body 1, a partition 2 fixed horizontally inside the dust removal tank body 1, multiple groups of filter mechanisms 3 evenly arranged on the partition 2 and filtering dust-laden gas, a pulse cleaning mechanism 4 arranged on the top of the dust removal tank body 1 and automatically cleaning the filter mechanism 3, four air inlet pipes 5 evenly arranged on the dust removal tank body 1 and located below the partition 2, an air outlet pipe 6 arranged on the dust removal tank body 1 and located above the partition 2, an annular pipe 7 connecting all the air inlet pipes 5, an ash hopper 8 arranged at the bottom of the dust removal tank body 1 and in the shape of a hopper, and an air-blocking ash discharge valve 9 fixedly installed at the ash discharge port of the ash hopper 8;

[0029] The annular pipe 7 includes four butterfly valves 7a, three tees 7b, one four-way pipe 7c, and four arc pipes 7d. One end of the four butterfly valves 7a is respectively connected to the water inlet pipe, one end of the three three-way pipes 7b is respectively connected to the other end 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 the two arc pipes 7d is connected to the two ends of the four-way pipe 7c, and the other end is respectively connected to one end of two three-way pipes 7b adjacent to the four-way pipe 7c, one end of the other two arc pipes 7d is respectively connected to the two ends of a three-way pipe 7b, and the other end is respectively connected to the remaining end of the two three-way pipes 7b adjacent to the four-way pipe 7c, and the remaining end of the four-way pipe 7c is connected to the conveying pipe for conveying dust-laden flue gas.

[0030] By adopting the above technical solution, when the conveying pipe conveys 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 pipe 7d and the butterfly valve 7a, and is divided into four streams and enters 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 interior of the dust removal tank body 1 evenly and smoothly in four mutually perpendicular directions; then the filtering mechanism 3 on the partition 2 will purify and filter the toxic and harmful dust particles in the dust-laden flue gas, and finally be discharged from the dust removal tank body 1 through the outlet pipe 6. Among them, the above-mentioned method of conveying dust-laden flue gas to the inside of the dust removal tank body 1 in four directions can not only solve the problem that most of the fine dust particles are retained on the filter bags near the air inlet, resulting in inconsistent working conditions and lifespans of the dust collector filter bags, but also the dust-laden flue gas airflows entering the dust removal tank body 1 from four directions will collide and offset each other in the center of the dust removal tank body 1, thereby avoiding the occurrence of impact vortices and reducing the wear of the dust-laden flue gas airflow on the inner wall of the dust removal tank body 1 and the ash hopper 8. At the same time, since the four air inlet pipes 5 are all arranged between the ash hopper 8 and the partition 2 (between the cylindrical filter bag 3a), the dust-laden flue gas airflow has little effect on the coarse dust particles falling into the ash hopper 8 when entering the dust removal tank body 1, and can definitely prevent the generation of secondary dust inside the ash hopper 8; the above-mentioned 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 four air inlet pipes 5 are evenly distributed to input the dust-laden flue gas.

[0031] like Figure 2-4 As shown, the inner wall of the dust removal tank body 1 is provided with a circle of annular groove 1a, and the four air inlet pipes 5 are connected to the interior of the annular groove 1a. A rotating ring 10 is provided in the annular groove 1a for horizontal rotation. The dust removal tank body 1 is provided with a rotating mechanism 11 for driving the rotating ring 10 to rotate. Twelve vertical supporting square columns 101 are evenly fixed on the top of the rotating ring 10. A plurality of upper guide blades 102 or middle guide blades 103 or lower guide blades 104 arranged in parallel up and down are connected between adjacent supporting square columns 101. The upper guide blades 102, the middle guide blades 103 and the lower guide blades 104 are respectively in the shape of arcs. , and the upper guide blades 102 are inclined upward, the middle guide blades 103 are horizontal and straight, and the lower guide blades 104 are inclined downward. There are four groups of upper guide blades 102, middle guide blades 103 and lower guide blades 104 respectively, and the four groups of upper guide blades 102 or the four groups of middle guide blades 103 or the four groups of lower guide blades 104 are respectively located between four pairs of supporting square columns 101. The four groups of upper guide blades 102, the four groups of middle guide blades 103 and the four groups of lower guide blades 104 are arranged in sequence in a clockwise or counterclockwise direction on the rotating ring 10, and each group of middle guide blades 103 is located between a group of upper guide blades 102 and a group of guide blades.

[0032] By adopting the above-mentioned annular groove 1a, rotating ring 10 and other structures, when the dust-laden flue gas enters the dust removal tank body 1 through the air inlet pipe 5, the rotating mechanism 11 will drive the rotating ring 10 to rotate relative to the annular groove 1a, and then each group of upper guide blades 102, middle guide blades 103 and lower guide blades 104 will be driven by the rotating ring 10 and pass through the connecting port between the air inlet pipe 5 and the inner wall of the dust removal tank body 1 (i.e., the outlet of the air inlet pipe 5) in turn. Since the upper guide blades 102 are inclined upward, the middle guide blades 103 are horizontal and straight, and the lower guide blades 104 are inclined downward, the above-mentioned upper guide blades 102, middle guide blades 103 and lower guide blades 104 will control the dust-laden flue gas flow to flow in the upward, horizontal and downward directions in turn, so that the dust-laden flue gas can evenly enter the interior of the dust removal tank body 1 and ensure that all filtering mechanisms 3 evenly filter the dust-laden flue gas.

[0033] Among them, since the four groups of upper guide blades 102, the four groups of middle guide blades 103 and the four groups of lower guide blades 104 are arranged in sequence in a clockwise or counterclockwise direction on the rotating ring 10, and each group of middle guide blades 103 is located between a group of upper guide blades 102 and a group of guide blades, the dust-laden flue gas airflows leaving from the outlets of the four air inlet pipes 5 will not only flow in the same direction of upward, horizontal or downward to ensure that the four dust-laden flue gas airflows can collide and offset each other in the center of the dust removal tank body 1, but also the dust-laden flue gas airflows leaving from the outlets of each air inlet pipe 5 will also cyclically repeat the upward, horizontal and downward flow in sequence, thereby further ensuring that the dust-laden flue gas fully and evenly enters the interior of the dust removal tank body 1.

[0034] like Figure 1 、 Figure 2 、 Figure 5 As shown, the rotating mechanism 11 includes a rotating ring 2 111 fixedly connected to the top of all supporting square columns 101 and parallel to the rotating ring 10, a gear ring 112 horizontally fixed to the top of the rotating ring 2 111, a driving gear 113 that rotatably engages the gear ring 112, and a motor 114 that drives the driving gear 113 to rotate. A box body 1b with an opening facing upward and accommodating the driving gear 113 is fixed on the outer wall of the dust removal tank body 1, and a box cover 1b1 with a closed opening is screwed to the top of the box body 1b. 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. A connecting hole 1c is provided on the body of the dust removal tank body 1 to connect the box body 1b and the annular groove 1a, and the driving gear 113 inside the box body 1b passes through the connecting hole 1c to engage the gear ring 112 inside the dust removal tank body 1.

[0035] By adopting the above-mentioned rotating mechanism 11, when it is necessary to drive the rotating ring 10 to rotate, the motor 114 first drives the driving gear 113 to rotate, and then the driving gear 113 engages the transmission ring gear 112, so that the ring gear 112 drives the rotating ring 2 111 to rotate. Since the rotating ring 10 and the rotating ring 2 111 are coaxial and connected by the supporting square column 101, the rotating ring 10 and the rotating ring 2 111 will finally rotate synchronously, and drive the above-mentioned groups of upper guide blades 102, middle guide blades 103 and lower guide blades 104 to pass through the outlet of the air inlet pipe 5 in sequence. Among them, 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 fixed installation position for the motor 114 and a safe movement space for the driving gear 113, but also, in conjunction with the detachable box cover 1b1 and the connecting hole 1c connecting the box body 1b and the annular groove 1a, it is convenient for the staff to check and maintain the various components of the rotating mechanism 11 at any time to ensure the stable operation of the rotating mechanism 11.

[0036] like Figure 2-5As shown, the top wall of annular groove 1a is fixedly mounted with an annular baffle 1d that shields rotating ring 111 and gear ring 112. The outer contour of rotating ring 111 closely fits the sidewall of annular groove 1a, while the inner contour of rotating ring 111 closely fits the outer contour of annular baffle 1d. The inner contour of rotating ring 111 is defined by a sealing groove 111a, and the outer contour of annular baffle 1d is fixedly mounted with a sealing protrusion 1d1 that rotatably engages with sealing groove 111a. The rotatable connection between annular baffle 1d and rotating ring 111 not only effectively protects gear ring 112 from contact with dusty smoke, but also prevents dusty smoke from leaking through the gaps between connecting hole 1c, lid 1b1, and body 1b.

[0037] like Figure 4 As shown, a plurality of vertical support cylinders 105 are fixedly connected between the rotating ring 10 and the rotating ring 2 111, and the support cylinder 105 is fixedly passed through the upper guide vane 102, a plurality of vertical support cylinders 106 are fixedly connected between the rotating ring 10 and the rotating ring 2 111, and the support cylinder 2 106 is fixedly passed through the middle guide vane 103, a plurality of vertical support cylinders 3 107 are fixedly connected between the rotating ring 10 and the rotating ring 2 111, and the support cylinders 3 108 are fixedly connected between the rotating ring 10 and the rotating ring 2 111. Cylinder three 107 is fixed through the lower guide vane 104, and there are four groups of supporting cylinder one 105, supporting cylinder two 106, and supporting cylinder three 107 respectively, and each group of supporting cylinder one 105 or supporting cylinder two 106 or supporting cylinder three 107 is located between two adjacent supporting square columns 101, and the number of individual supporting cylinders in each group of supporting cylinder one 105 is less than the number of individual supporting cylinders in each group of supporting cylinder two 106, and the number of individual supporting cylinders in each group of supporting cylinder two 106 is less than the number of individual supporting cylinders in each group of supporting cylinder three 107.

[0038] By adopting the above-mentioned support cylinder 105, support cylinder 2 106 and support cylinder 3 107, not only can the upper guide vane 102, the middle guide vane 103 and the lower guide vane 104 be further supported and fixed respectively, but the three can also block the flow of dust-laden flue gas to a certain extent, reduce the speed of the dust-laden flue gas flow, and further reduce the influence of the dust-laden flue gas flow on the coarse dust particles falling into the ash hopper 8. At the same time, since the number of support cylinders 3 107 passing through each group of lower guide vanes 104 is large and the density is high (from each group of support cylinders 10 5 is smaller than the number of each group of supporting cylinders 2 106, and the number of each group of supporting cylinders 2 106 is smaller than the number of each group of supporting cylinders 3 107). Therefore, when the dust-laden flue gas flows downward under the guidance of the lower guide blade 104, the airflow velocity of the dust-laden flue gas can be reduced to a minimum, thereby effectively avoiding the high-speed dust-laden flue gas airflow impacting the inner wall of the ash hopper 8 and the dust particles settled in the center of the ash hopper 8, further reducing the wear of the dust-laden flue gas airflow on the inner wall of the ash hopper 8 and preventing the generation of secondary dust inside the ash hopper 8.

[0039] like Figure 4 As shown, a cleaning brush 101a is provided on the side of the supporting square column 101 facing the bottom of the annular groove 1a, and the cleaning brush 101a cooperates with the movement of the supporting square column 101 to clean the bottom of the annular groove 1a, the outer contour surface of the rotating ring 10 and the bottom of the annular groove 1a are tightly fitted, the inner contour of the rotating ring 10 and the inner wall of the dust removal tank body 1 are flush with each other, and the top of the rotating ring 10 is inclined downward.

[0040] By using the cleaning brush 101a on the back of the supporting square column 101, the connection between the annular groove 1a and the air inlet pipe 5 (i.e., the outlet of the air inlet pipe 5) can be automatically cleaned in conjunction with the rotation of the rotating ring 10, thereby preventing dust particles from accumulating and blocking the outlet of the air inlet pipe 5, thereby further ensuring that the dust-laden flue gas can smoothly enter the dust removal tank body 1. Particularly, since the outer contour of the rotating ring 10 and the bottom of the annular groove 1a fit tightly together, the inner contour of the rotating ring 10 and the inner wall of the dust removal tank body 1 are flush with each other, and the top of the rotating ring 10 is inclined downward, the dust removed from the bottom of the annular groove 1a by the cleaning brush 101a will all fall into the ash hopper 8 under the guidance of the inclined surface of the top of the rotating ring 10, thereby preventing dust from accumulating on the top of the rotating ring 10.

[0041] like Figure 4 As shown, the bottom of the annular baffle 1d is evenly and securely connected to multiple curved plates 1d2, all of which are coaxial with the annular baffle 1d. A cleaning brush 1d3 is fixedly mounted on the side of the curved plates 1d2 facing the bottom of the annular groove 1a. The cleaning brush 1d3 cooperates with the rotation of the rotating ring 10 or the rotating ring 111 to clean the supporting square pillars 101, the upper guide vanes 102, the middle guide vanes 103, and the lower guide vanes 104. By utilizing these curved plates 1d2 and the cleaning brush 1d3 on their backs, the rotating ring 10 can automatically clean residual particles from the supporting square pillars 101, the upper guide vanes 102, the middle guide vanes 103, and the lower guide vanes 104, thereby ensuring that dust-laden flue gas passes smoothly through the blades and pillars.

[0042] like Figure 3 As shown, the filter mechanism 3 includes a cylindrical filter bag 3a and a cylindrical cage frame 3b. The partition 2 is provided with a filter bag mounting hole 2a, and the head of the cylindrical filter bag 3a is fixedly secured in the filter bag mounting hole 2a. The cylindrical cage frame 3b is inserted into the cylindrical filter bag 3a from the top of the partition 2 and supports the cylindrical filter bag 3a to maintain its cylindrical shape. By using this filter mechanism 3, dust-laden flue gas can be effectively filtered and purified.

[0043] like Figure 1-3As shown, the top of the dust removal tank body 1 is open, and a tank cover 12 is fixed with bolts. The pulse cleaning mechanism 4 is arranged on the tank cover 12. By adopting the above-mentioned detachable connection between the tank cover 12 and the dust removal tank body 1, it is not only convenient for the staff to install and repair the internal parts of the dust removal tank body 1, but also provides an installation and fixing position for the parts in the pulse cleaning mechanism 4.

[0044] like Figure 2 、 Figure 3 As shown, the pulse cleaning mechanism 4 includes a compressed air tank 4a fixed to the top of the tank cover 12, a blowpipe 4b fixed to the bottom of the tank cover 12 and located above the partition 2, and multiple pulse solenoid valves 4c with input ends connected to the compressed air tank 4a and output ends commonly connected to the blowpipe 4b. The pulse solenoid valve 4c is located at the top of the tank cover 12, and the pulse solenoid output end passes through the tank cover 12 to connect to the blowpipe 4b. The blowpipe 4b is evenly provided with multiple vertical downward blowpipes 4d, and all the blowpipes 4d are sequentially aligned with all the filter bag mounting holes 2a on the partition 2. By adopting the above-mentioned pulse cleaning mechanism 4, it is possible to emit a pulse airflow to the interior of all the cylindrical filter bags 3a when needed, so as to peel off the dust accumulated on the outer surface of the cylindrical filter bags 3a and settle it into the ash hopper 8.

[0045] like Figure 1-3 As shown, multiple support legs 8a are fixedly connected to the outer wall of the ash hopper 8. The lower ends of the support legs 8a are in contact with and fixed to the ground, and together they support and elevate the dust removal tank body 1, the ash hopper 8, and the air-locking ash discharge valve 9. By using these support legs 8a, not only can the dust removal tank body 1 be supported and fixed, but the ash hopper 8 and the air-locking ash discharge valve 9 can also be raised to a certain extent, making it easier to connect the dust conveying pipe or container.

Claims

1. A dust collector air inlet device, characterized in that: The dust removal device comprises a dust removal tank body (1), a partition (2) fixed horizontally inside the dust removal tank body (1), a plurality of filter mechanisms (3) evenly arranged on the partition (2) and filtering dust-laden gas, a pulse dust cleaning mechanism (4) arranged on the top of the dust removal tank body (1) and automatically cleaning the dust from the filter mechanism (3), four air inlet pipes (5) evenly arranged on the dust removal tank body (1) and located below the partition (2), an air outlet pipe (6) arranged on the dust removal tank body (1) and located above the partition (2), an annular pipe (7) connecting all the air inlet pipes (5), an ash hopper (8) arranged on the bottom of the dust removal tank body (1) and in the shape of a hopper, and an air-blocking ash discharge valve (9) fixedly installed on the ash discharge port of the ash hopper (8); The annular pipe (7) comprises four butterfly valves (7a), three three-way pipes (7b), a four-way pipe (7c), and four arc-shaped pipes (7d). One end of each of the four butterfly valves (7a) is connected to a water inlet pipe, one end of each of the three three-way pipes (7b) is connected to the other end of each of the three butterfly valves (7a), one end of each of the four-way pipes (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 thereof is connected to one end of two three-way 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 a three-way pipe (7b), and the other end thereof is connected to the remaining end of two three-way pipes (7b) adjacent to the four-way pipe (7c), and the remaining end of the four-way pipe (7c) is connected to a conveying pipe for conveying dust-laden flue gas.

2. The dust collector air inlet device according to claim 1, characterized in that: The inner wall of the dust removal tank body (1) is provided with a circle of annular grooves (1a), and four air inlet pipes (5) are connected to the inside of the annular groove (1a). A rotating ring (10) is provided in the inside of the annular groove (1a) for horizontal rotation. The dust removal tank body (1) is provided with a rotating mechanism (11) for driving the rotating ring (10) to rotate. Twelve vertical supporting square columns (101) are evenly fixed on the top of the rotating ring (10). A plurality of upper guide blades (102) or middle guide blades (103) or lower guide blades (104) arranged in parallel in the upper and lower directions are connected between two adjacent supporting square columns (101). The upper guide blades (102), the middle guide blades (103) and the lower guide blades (104) are respectively arranged in a circle. The invention relates to a circular arc shape, wherein the upper guide blades (102) are inclined upward, the middle guide blades (103) are horizontal and straight, and the lower guide blades (104) are inclined downward. The upper guide blades (102), the middle guide blades (103) and the lower guide blades (104) are respectively in four groups, and the four groups of upper guide blades (102) or the four groups of middle guide blades (103) or the four groups of lower guide blades (104) are respectively located between four pairs of supporting square columns (101). The four groups of upper guide blades (102), the four groups of middle guide blades (103) and the four groups of lower guide blades (104) are sequentially arranged in a clockwise or counterclockwise direction on a rotating circular ring (10), and each group of middle guide blades (103) is located between a group of upper guide blades (102) and a group of guide blades.

3. The dust collector air inlet device according to claim 2, characterized in that: The rotating mechanism (11) comprises a rotating ring (111) fixedly connected to the tops of all supporting square columns (101) and parallel to the rotating ring (10), a gear ring (112) fixed horizontally to the top of the rotating ring (111), a driving gear (113) that rotates and meshes with the gear ring (112), and a motor (114) that drives the driving gear (113) to rotate. A box body (1b) with an upward opening and accommodating the driving gear (113) is fixedly provided on the outer wall of the dust removal tank body (1), and the box body A box cover (1b1) with a closed opening is fixed by screws on the top of the box cover (1b1), the motor (114) is fixed on the top of the box cover (1b1), and the output end of the motor (114) passes through the box cover (1b1) to connect to the driving gear (113), the dust removal tank body (1) is provided with a connecting hole (1c) connecting the box body (1b) and the annular groove (1a), and the driving gear (113) inside the box body (1b) passes through the connecting hole (1c) to engage with the gear ring (112) inside the dust removal tank body (1).

4. The dust collector air inlet device according to claim 3, characterized in that: The top wall of the annular groove (1a) is fixedly provided with a circle of annular baffles (1d) for shielding the rotating circular ring (111) and the gear ring (112); the outer contour surface of the rotating circular ring (111) and the side wall of the annular groove (1a) are tightly fitted; the inner contour surface of the rotating circular ring (111) and the outer contour surface of the annular baffle (1d) are tightly fitted; a sealing groove (111a) is provided on the inner contour surface of the rotating circular ring (111); and the outer contour surface of the annular baffle (1d) is fixedly provided with a circle of sealing protrusions (1d1) that rotatably engage with the sealing groove (111a).

5. The dust collector air inlet device according to claim 4, characterized in that: A plurality of vertical support cylinders (105) are fixedly connected between the rotating ring (10) and the rotating ring (111), and the support cylinders (105) are fixedly passed through the upper guide vanes (102); a plurality of vertical support cylinders (106) are fixedly connected between the rotating ring (10) and the rotating ring (111), and the support cylinders (106) are fixedly passed through the middle guide vanes (103); a plurality of vertical support cylinders (107) are fixedly connected between the rotating ring (10) and the rotating ring (111), and the support cylinders (107) are fixedly passed through the middle guide vanes (103); Cylinder three (107) is fixed through the lower guide vane (104), and there are four groups of support cylinder one (105), support cylinder two (106), and support cylinder three (107), respectively. Each group of support cylinder one (105) or support cylinder two (106) or support cylinder three (107) is located between two adjacent support square columns (101), and the number of individual support cylinders in each group of support cylinder one (105) is less than the number of individual support cylinders in each group of support cylinder two (106), and the number of individual support cylinders in each group of support cylinder two (106) is less than the number of individual support cylinders in each group of support cylinder three (107).

6. The dust collector air inlet device according to claim 4, characterized in that: A cleaning brush (101a) is provided on one side of the supporting square column (101) facing the bottom of the annular groove (1a), and the cleaning brush (101a) cleans the bottom of the annular groove (1a) in coordination with the movement of the supporting square column (101). The outer contour surface of the rotating ring (10) and the bottom of the annular groove (1a) are tightly fitted, the inner contour of the rotating ring (10) and the inner wall of the dust removal tank (1) are flush with each other, and the top of the rotating ring (10) is inclined downward; the annular baffle ( 1d) The bottom of the annular groove (1a) is evenly and fixedly connected with a plurality of arc-shaped plates (1d2), and all the arc-shaped plates (1d2) and the annular baffle (1d) are coaxial. A cleaning brush (1d3) is fixedly provided on one side of the arc-shaped plate (1d2) facing the bottom of the annular groove (1a), and the cleaning brush (1d3) cooperates with the rotation of the rotating ring (10) or the rotating ring (111) to clean the supporting square column (101), the upper guide blade (102), the middle guide blade (103) and the lower guide blade (104).

7. The dust collector air inlet device according to claim 1, characterized in that: The filtering mechanism (3) comprises a cylindrical filter bag (3a) and a cylindrical cage frame (3b); a filter bag mounting hole (2a) is provided on the partition (2); and the head of the cylindrical filter bag (3a) is clamped and fixed in the filter bag mounting hole (2a); the cylindrical cage frame (3b) is inserted into the cylindrical filter bag (3a) from the top of the partition (2) and supports the cylindrical filter bag (3a) to maintain the cylindrical shape.

8. The dust collector air inlet device according to claim 7, characterized in that: The dust removal tank body (1) has an opening at the top and is fixed with a tank cover (12) by bolts, and the pulse dust cleaning mechanism (4) is arranged on the tank cover (12).

9. The dust collector air inlet device according to claim 8, characterized in that: The pulse cleaning mechanism (4) comprises a compressed air tank (4a) fixed to the top of the tank cover (12), a blowpipe (4b) fixed to the bottom of the tank cover (12) and located above the partition (2), and a plurality of pulse solenoid valves (4c) whose input ends are connected to the compressed air tank (4a) and whose output ends are commonly connected to the blowpipe (4b). The pulse solenoid valve (4c) is located at the top of the tank cover (12), and the pulse solenoid output end passes through the tank cover (12) to connect to the blowpipe (4b). The blowpipe (4b) is evenly provided with a plurality of vertical downward blowpipes (4d), and all the blowpipes (4d) are sequentially aligned with all the filter bag mounting holes (2a) on the partition (2).

10. The dust collector air inlet device according to claim 1, characterized in that: The outer side wall of the ash hopper (8) is fixedly connected to a plurality of support legs (8a), the lower ends of the support legs (8a) are in contact with and fixed on the ground, and together support and elevate the dust removal tank body (1), the ash hopper (8) and the air-blocking ash discharge valve (9).

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