CN115253501B

CN115253501B - Laterite-nickel ore high-temperature flue gas bag-type dust removal equipment and method

Info

Publication number: CN115253501B
Application number: CN202210780492.5A
Authority: CN
Inventors: 朱海林
Original assignee: Yangzhou Yichuan Nickel Industry Co ltd
Current assignee: Yangzhou Yichuan Nickel Industry Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2023-04-18
Anticipated expiration: 2042-07-04
Also published as: CN115253501A

Abstract

The invention discloses laterite-nickel ore high-temperature flue gas bag-type dust removal equipment and method, and relates to the technical field of bag-type dust removers. The laterite-nickel ore high-temperature flue gas bag dust removal equipment comprises a box body, an air inlet pipe and an air outlet pipe are sequentially communicated with the side part of the box body from bottom to top, a plurality of bag frames are fixedly connected to the inner cavity of the box body at equal intervals, a filter bag is fixedly connected to the inner part of each bag frame, a flow guide piece is arranged between the filter bag and the air inlet pipe, a pressure detection touch piece used for controlling the opening and closing of a dust removal mechanism is arranged on the outer part of the air inlet pipe, a torsion spring is sleeved outside a shaft rod, one end, far away from a rotating shaft, of a folding rod is fixedly connected with a knocking ball, a shovel plate is fixedly connected between two adjacent mounting plates in front and back jointly, and a part, close to the filter bag, of the side end face of the shovel plate is rotatably connected with a spacer wheel.

Description

Laterite-nickel ore high-temperature flue gas bag-type dust removal equipment and method

Technical Field

The invention relates to the technical field of bag-type dust collectors, in particular to a laterite-nickel ore high-temperature flue gas bag-type dust collection device and method.

Background

In the process of smelting ferronickel from laterite-nickel ore, a large amount of smoke can be generated and is directly discharged into the air, and the pollution can be caused to the air, so the smoke is generally treated by a bag type dust collector and then is discharged into the air, the working principle of the bag type dust collector is to filter dust-containing gas by utilizing a filter bag made of woven filter cloth or non-woven felt, the dust with large particles and large specific gravity falls into an ash hopper due to the sedimentation of the gravity, and when the gas containing fine dust passes through a filter material, the dust is blocked, so that the gas is purified.

The filter bag works for a long time and then along with the accumulation of dust on the surface of the filter material, the dust removal efficiency and resistance of the filter bag are correspondingly increased, when the pressure difference between two sides of the filter material is large, some fine dust particles attached to the filter material are extruded, so that the efficiency of the dust remover is reduced, and therefore the dust on the surface of the filter bag needs to be removed regularly; in addition, the filter bag is easily burnt out after long-time high-temperature gas treatment, and the service life of the filter bag is shortened.

Disclosure of Invention

The technical problem to be solved is as follows: the invention provides a laterite-nickel ore high-temperature flue gas bag-type dust removal device and method, which can solve the problems pointed out in the background art.

The technical scheme is as follows: in order to achieve the above purposes, the invention adopts the following technical scheme that the laterite-nickel ore high-temperature flue gas bag dust removal equipment comprises a box body, wherein the side part of the box body is sequentially communicated with an air inlet pipe and an air outlet pipe from bottom to top, a plurality of bag frames are fixedly connected in an inner cavity of the box body at equal intervals, a filter bag is fixedly connected in each bag frame, a flow guide piece is arranged between the filter bag and the air inlet pipe in the inner cavity of the box body, a dust removal mechanism is symmetrically arranged in the bag frames by taking the filter bag as a symmetry axis, a pressure detection touch piece for controlling the opening and closing of the dust removal mechanism is arranged outside the air inlet pipe, the dust removal mechanism comprises a mounting plate, a rotating shaft, a rolling wheel, a folding rod, a knocking ball, an elastic shifting plate and a shovel plate, mounting chutes are respectively arranged on the front cavity wall and the rear cavity wall of each bag frame and on the side wall of the filter bag, and mounting chutes are respectively connected in a sliding manner in the mounting chutes, a reciprocating driving piece is fixedly connected between the mounting plate and the bag frame, the side end faces of two adjacent mounting plates in the front and back are fixedly connected with a U-shaped frame, a rotating shaft is rotatably connected between the two adjacent mounting plates in the front and back, the front end of the rotating shaft penetrates through the mounting plates and is fixedly connected with a rolling wheel, the side end faces of the bag frame are fixedly connected with friction plates which are mutually butted with the outer surfaces of the rolling wheels, mounting rings are symmetrically sleeved outside the rotating shaft, two support plates are fixedly connected outside the mounting rings, one side end face of the mounting plate, which is close to the support plates, is fixedly connected with a supporting block for limiting the support plates, a shaft lever is fixedly connected between the two corresponding support plates in the front and back, a plurality of folding rods are rotatably connected with the outer part of the shaft lever at equal intervals, torsion springs are fixedly connected with the side end faces of the folding rods and the outer surface wall of the shaft lever, and torsion springs are sleeved outside the shaft lever, and one ends of the folding rods, which are far away from the rotating shaft, are fixedly connected with knocking balls, the rotary shaft is characterized in that a plurality of elastic poking plates which correspond to the folded rods and are matched with the folded rods are fixedly connected to the outer wall of the circumference of the rotary shaft at equal intervals, a shovel plate is fixedly connected between the two adjacent mounting plates in the front and the back, and a part, close to the filter bag, of the side end face of the shovel plate is rotatably connected with a gauge wheel.

Further, the pressure detection triggering part comprises a cylinder, a pressing spring and a pushing plug, the cylinder is communicated with the outside of the air inlet pipe, the inner cavity of the cylinder is fixedly connected with the pushing plug through a fixed rod in a matched mode, and a triggering point is arranged in the inner cavity of the cylinder.

Furthermore, the flow guide piece comprises a flow guide cylinder and a partition plate, the flow guide cylinder is fixedly connected between the filter bag and the air inlet pipe in the inner cavity of the box body, the flow guide cylinder is wide at two ends and narrow in the middle, and a plurality of flow guide channels are separated from the inner cavity of the flow guide cylinder through the partition plate.

Furthermore, the front part of the box body is fixedly connected with a conveying pipe, the lower part of the conveying pipe is communicated with a heat absorption branch pipe, the rear part of the heat absorption branch pipe extends into the flow guide channel, the part of the heat absorption branch pipe, which is positioned in the inner cavity of the flow guide channel, is in an inclined state that one end of the heat absorption branch pipe is close to the conveying pipe and the other end of the heat absorption branch pipe is far away from the conveying pipe, the upper part of the conveying pipe is communicated with a heat exchange cylinder, the inner cavity of the conveying pipe is separated into an ascending flow channel and a descending flow channel through a separation plate,

further, the bag frame front portion equidistance sliding connection has a plurality of U-shaped frame, and common fixedly connected with connecting plate between two adjacent U-shaped frames, the common fixedly connected with sliding spring of terminal surface before U-shaped frame side end face and the bag frame, the inside left end face of U-shaped frame and right-hand member all articulate through lug cooperation torsion spring has the connecting rod, and the one end fixedly connected with that the connecting rod is close to the filter bag cleans the brush stick, and cleans the equal fixedly connected with gauge circle piece in both ends of brush stick, the box inner chamber has the slide bar through sliding ring sliding connection, and the slide bar is close to the one end fixedly connected with arc extrusion piece of U-shaped frame, and U-shaped frame up end fixedly connected with and arc extrusion piece matched with extrusion post, rising runner and descending runner inner chamber are provided with the leaf oar respectively, and the coaxial fixedly connected with incomplete gear of leaf oar, the slide bar is close to the one end fixedly connected with and the rack that incomplete gear engaged with.

Furthermore, an arch frame is fixedly connected to the outer portion of the U-shaped frame.

Furthermore, the inner cavity of the knocking ball is a cavity, and the spherical inner cavity of the knocking ball is fixedly connected with a plurality of vibrating ball blocks through a shaking spring.

A laterite-nickel ore high-temperature flue gas cloth bag dust removal method is completed by matching laterite-nickel ore high-temperature flue gas cloth bag dust removal equipment, and comprises the following steps: s1: firstly, high-temperature flue gas is introduced into a box body through an air inlet pipe, and then the high-temperature flue gas is guided by a flow guide piece and divided into a plurality of parts which uniformly penetrate through a filter bag.

S2: and then the high-temperature flue gas in the S1 passes through the filter bag to be filtered, and the filtered dust particles are attached to the surface wall of the filter bag.

S3 the method comprises the following steps: and then, removing the dust attached to the surface of the filter bag in the S2 by using a dust removing mechanism.

S4: and finally, discharging the purified gas from the gas outlet pipe.

The dust removing device has the beneficial effects that through the matching of the folding rod, the knocking ball, the elastic shifting plate and the shovel plate in the dust removing mechanism, the elastic shifting plate is driven to continuously shift the folding rod to drive the knocking ball to generate vibration in the vertical reciprocating movement process of the mounting plate, and the knocking ball continuously knocks agglomerated dust to loosen and break the agglomerated dust, so that the dust attached to the surface of the filter bag can be thoroughly removed.

(2) The flue gas that enters into in the box can be integrated and the homodisperse is handled through a plurality of water conservancy diversion channel in the water conservancy diversion spare, make the flue gas can be even pass the filter bag, avoided the flue gas because of not concentrating on leading to the regional filter pressure of filter bag part too big, rethread heat absorption branch pipe, the cooperation of conveyer pipe and heat exchanger tube and the narrow and long section in guide tube middle part, utilize the narrow shape space in guide tube middle part to make the flue gas of entering accelerate the velocity of flow, can be quick with in heat transfer to the heat absorption branch pipe, the heat absorption branch pipe dispels the heat in transferring to the heat exchanger tube with the heat absorption again, thereby can cool down the flue gas that enters into in the box and handle, the condition of the filter bag caused the burn has been avoided, the life of filter bag has been prolonged.

(3) The ascending flow channel and the descending flow channel in the conveying pipe are mutually matched to respectively control the ascending of heat flow after heat absorption and the descending of cold flow after cooling to drive the blade to rotate, the blade drives the cleaning brush rod to move back and forth through the matching of the incomplete gear and the rack, the heat energy in the smoke can be utilized, meanwhile, the dust attached to the surface of the blade can be removed in the using process of the filter bag, and the capability of the filter bag for normal filtration is guaranteed.

(4) The spacing round blocks at the two ends of the cleaning brush rod and the spacing wheel outside the shovel plate can keep a certain distance between the dust removing equipment and the filter bag in the process of removing dust from the filter bag, so that the problem that the dust removing equipment and the filter bag are tightly attached to damage a primary filter layer in the dust removing process is avoided, and the normal dust removing effect of the filter bag is guaranteed.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic sectional view of the case of the present invention (with part of the bag frame hidden).

FIG. 3 is a schematic view of the installation structure of the dust removing mechanism of the present invention.

FIG. 4 is a schematic view of a part of the dust removing mechanism of the present invention.

Fig. 5 is a schematic view of the arch mounting structure of the present invention.

FIG. 6 is a front view, sectional structural view of the case of the present invention.

Fig. 7 is an enlarged view of the structure of part a in fig. 6 according to the present invention.

FIG. 8 is a schematic cross-sectional view of a U-shaped frame according to the present invention.

Fig. 9 is a schematic cross-sectional view of the flow guide of the present invention.

FIG. 10 is a cross-sectional view of the pressure sensing trip of the present invention.

In the figure: 1. a box body; 2. an air inlet pipe; 3. an air outlet pipe; 4. a bag frame; 5. filtering the bags; 6. a flow guide member; 61. a draft tube; 62. a partition plate; 63. a flow guide channel; 7. a dust removal mechanism; 71. mounting a plate; 72. a rotating shaft; 73. a rolling wheel; 74. a fold-shaped rod; 75. knocking and hitting the ball; 76. an elastic shifting plate; 77. a shovel plate; 78. a reciprocating drive member; 79. a U-shaped frame; 710. a friction plate; 711. a mounting ring; 712. a support plate; 713. a resisting block; 714. a shaft lever; 715. a torsion spring; 716. a gauge wheel; 8. a pressure detection trigger; 81. a cylinder; 82. pressing the spring; 83. pushing the plug; 84. a touch point; 9. a delivery pipe; 10. a heat absorbing branch pipe; 11. a heat exchange tube; 12. a separator plate; 13. an ascending flow channel; 14. a descending flow passage; 15. a U-shaped frame; 16. a slide spring; 17. a connecting rod; 18. cleaning the brush rod; 19. a gauge circle block; 20. a slide bar; 21. an arc-shaped extrusion block; 22. extruding the column; 23. a blade paddle; 24. an incomplete gear; 25. a rack; 26. an arch frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a laterite-nickel ore deposit high temperature flue gas sack dust collecting equipment, including box 1, 1 lateral part of box is from supreme intercommunication down in proper order has intake pipe 2 and outlet duct 3, 1 inner chamber equidistance fixedly connected with a plurality of bag frame 4 of box, and every bag frame 4 inside equal fixedly connected with filter bag 5, 1 inner chamber of box is located and is provided with water conservancy diversion piece 6 between filter bag 5 and the intake pipe 2, bag frame 4 is inside to use filter bag 5 to install dust removal mechanism 7 as symmetry axis symmetry, 2 outside settings of intake pipe are used for controlling the pressure measurement that dust removal mechanism 7 opened and close and touch 8.

Referring to fig. 6 and 9, in the present embodiment, the flow guiding member 6 includes a flow guiding cylinder 61 and a partition plate 62, the flow guiding cylinder 61 is fixedly connected between the filter bag 5 and the air inlet pipe 2 in an inner cavity of the box 1, the flow guiding cylinder 61 is in a shape with two wide ends and a narrow middle portion, a plurality of flow guiding channels 63 are partitioned by the partition plate 62 in the inner cavity of the flow guiding cylinder 61, the conveying pipe 9 is fixedly connected to a front portion of the box 1, a lower portion of the conveying pipe 9 is communicated with the heat absorbing branch pipe 10, a rear portion of the heat absorbing branch pipe 10 extends into the flow guiding channels 63, a portion of the heat absorbing branch pipe 10 located in the inner cavity of the flow guiding channel 63 is in an inclined state that one end of the conveying pipe 9 is higher than the other end of the conveying pipe 9 and the other end is lower than the conveying pipe 9, an upper portion of the conveying pipe 9 is communicated with the heat exchanging cylinder 11, and an inner cavity of the conveying pipe 9 is partitioned by the partition plate 12 into an ascending channel 13 and a descending channel 14.

Referring to fig. 6, 7 and 8, a plurality of U-shaped frames 15 are connected to the front portion of a bag frame 4 in an equidistant sliding manner, a connecting plate is fixedly connected between two adjacent U-shaped frames 15, a sliding spring 16 is fixedly connected to both the side end surface of each U-shaped frame 15 and the front end surface of the bag frame 4, the left end surface and the right end surface of the inside of each U-shaped frame 15 are hinged to a connecting rod 17 through a lug matched torsion spring, one end of the connecting rod 17 close to a filter bag 5 is fixedly connected to a cleaning brush 18, two ends of the cleaning brush 18 are fixedly connected to a spacer round block 19, an inner cavity of a box body 1 is slidably connected to a sliding rod 20 through a sliding ring, one end of the sliding rod 20 close to the U-shaped frame 15 is fixedly connected to an arc-shaped extrusion block 21, an extrusion column 22 matched with the arc-shaped extrusion block 21 is fixedly connected to the upper end surface of the U-shaped frame 15, blades 23 are respectively arranged in the inner cavities of an ascending flow channel 13 and a descending flow channel 14, the blades 23 are fixedly connected to incomplete gears 24 coaxially, and one end of the sliding rod 20 close to the incomplete gears 25 are fixedly connected to the incomplete gears 24.

The smoke containing dust and high temperature is led into the air inlet pipe 2, then the smoke enters the flow guide element 6, the smoke enters from the right part of the flow guide cylinder 61 and is firstly gathered and integrated together under the action of the flow guide channel 63 and then is uniformly dispersed from the left part of the flow guide cylinder 61, so that the smoke can uniformly penetrate through the filter bag 5 for filtering, the flow speed of the smoke is accelerated in the process of penetrating through the flow guide cylinder 61 because the middle part of the flow guide cylinder 61 is a narrow channel, so that the smoke is rapidly contacted with the heat absorption branch pipe 10, further, the heat is rapidly transferred to the heat absorption branch pipe 10, the temperature rise density of the liquid inside the heat absorption branch pipe 10 is reduced, the heated liquid flows upwards to enter the conveying pipe 9 because the heat absorption branch pipe 10 is in an inclined shape, the ascending flow passage 13 and the descending flow passage 14 are separated by the partition plate 12 in the conveying pipe 9, and the lower part of the partition plate 12 is bent as shown in figure 6, therefore, the ascending heated liquid enters the ascending flow channel 13, the heat flow in the ascending flow channel 13 continuously ascends to drive the blade 23 inside to rotate, the blade 23 rotates to drive the incomplete gear 24 at the right part to rotate, the heat flow ascends to enter the heat exchange cylinder 11 to finish heat dissipation and then the temperature drop density is increased and decreased, and because the upper part of the partition plate 12 is bent as shown in fig. 6, the descending cold flow is introduced into the descending flow channel 14 and flows into the heat absorption branch pipe 10 again to form circulation to transfer the heat in the flue gas to the outside for cooling treatment, the cold flow drives the blade 23 at the left part to rotate in the descending process in the descending flow channel 14, then the blade 23 drives the incomplete gear 24 at the left part to rotate, and the two incomplete gears 24 are mutually matched to be sequentially meshed with the rack 25 and drive the rack 25 to reciprocate, the rack 25 then drives the sliding rod 20 to reciprocate, the arc-shaped extrusion block 21 and the extrusion column 22 are driven to continuously extrude in the reciprocating process of the sliding rod 20, so that the U-shaped frame 15 reciprocates up and down, the U-shaped frame 15 then drives the cleaning brush rod 18 to reciprocate to remove the filtered dust in time, and the capability of the filter bag 5 in normal filtration is guaranteed.

Referring to fig. 10, in the present embodiment, the pressure detection triggering member 8 includes a cylinder 81, a pressing spring 82 and a pushing plug 83, the cylinder 81 is communicated with the outside of the air inlet pipe 2, the pushing plug 83 is fixedly connected to the inner cavity of the cylinder 81 through a fixing rod matching with the pressing spring 82, and a triggering point 84 is disposed in the inner cavity of the cylinder 81.

Referring to fig. 2, 3, 4 and 5, the dust removing mechanism 7 includes a mounting plate 71, a rotating shaft 72, a rolling wheel 73, a folding rod 74, a knocking ball 75, an elastic shifting plate 76 and a shovel plate 77, mounting chutes are respectively formed in the front cavity wall and the rear cavity wall of the bag frame 4 and located on the side walls of the filter bag 5, the mounting plate 71 is slidably connected inside the mounting chutes, a reciprocating driving member 78 is fixedly connected between the mounting plate 71 and the bag frame 4, a U-shaped frame 79 is fixedly connected to the side end surfaces of the front and rear adjacent mounting plates 71, a rotating shaft 72 is rotatably connected between the front and rear adjacent mounting plates 71, the front end of the rotating shaft 72 penetrates through the mounting plate 71 and is fixedly connected with the rolling wheel 73, a friction plate 710 abutting against the outer wall of the rolling wheel 73 is fixedly connected to the side end surface of the bag frame 4, mounting rings 711 are symmetrically sleeved outside the rotating shaft 72, two support plates 712 are fixedly connected to the mounting rings 711 outside the mounting rings, a plurality of abutting blocks for limiting the front and rear corresponding two support plates 712 are fixedly connected to the front and rear corresponding support plates 714, a plurality of the folding rod 714 are fixedly connected to the shaft rods 74, the shock absorbing plate 75, the shock absorbing ball pushing rod 714 is fixedly connected to the folding rod 75, the shock absorbing plate 75, the folding rod 714, the shock absorbing plate 75 and the shock absorbing plate 75, the shock absorbing plate 75 is fixedly connected to increase the shock absorbing plate 75, the part of the end face of the shovel plate 77 close to the filter bag 5 is rotatably connected with a gauge wheel 716, and the outside of the U-shaped frame 79 is fixedly connected with an arch frame 26.

The initial state of the dust removing mechanism 7 is located at the upper part of the bag frame 4, when the dust outside the surface of the filter bag 5 is accumulated too much, the resistance of the smoke passing through the filter bag 5 becomes large, at this time, the pressure in the air inlet pipe 2 increases, the high pressure in the air inlet pipe 2 pushes the ejector plug 83 to rise until the ejector plug 83 butts against a touch point, the dust removing mechanism 7 operates, the reciprocating driving piece 78 drives the mounting plate 71 to rise and reciprocate, when the mounting plate 71 moves upwards, the rolling wheel 73 drives the rotating shaft 72 to rotate under the action of the friction plate 710, a certain friction force exists between the mounting ring 711 and the rotating shaft 72, therefore, the rotating shaft 72 drives the mounting ring 711 to rotate, the mounting ring 711 rotates following the support plate 712 until the support plate 712 located at the upper part butts against the resisting block 713, the rotating shaft 72 continues to rotate and drives the elastic poking plate 76 outside to rotate, the elastic poking plate 76 continuously collides with the zigzag rod 74 during the rotation to drive the poking block 712 to shake, the poking bar 75 during the shaking can crush the dust adhering to the dust on the surface of the filter bag 5, the dust collecting bar 71 and the brush bar 18 during the process, and the dust collecting mechanism can further push the dust collecting bar 7 to crush the dust collecting mechanism 7 to crush the filter bag, and to crush the dust collecting mechanism 18, and to crush the dust collecting bag, and to further crush the dust collecting mechanism 7, when the dust collecting brush bar 14 and the dust collecting mechanism 18 is located at the dust collecting bag 5, and the dust collecting bag 5, the dust collecting mechanism 18 is located at the dust collecting mechanism 7, thus, the dust of the primary layer as a filter layer can be prevented from being damaged.

In addition, the invention also provides a laterite-nickel ore high-temperature flue gas bag dust removal method, which comprises the following steps: s1: firstly, high-temperature flue gas is introduced into the box body 1 through the air inlet pipe 2, then the high-temperature flue gas is guided by the guide channels 63 in the guide piece 6 and is divided into a plurality of parts which uniformly penetrate through the filter bag 5, the flue gas penetrates through the guide cylinder 61, heat is transferred to the heat absorption branch pipe 10 in the process, then the heat is transferred to the outside through the heat exchange cylinder 11, the filter bag 5 is prevented from being damaged by high temperature, the flowing liquid in the heat dissipation process drives the blade paddle 23 to rotate, the blade paddle 23 then drives the cleaning brush rod 18 to move back and forth in a matching manner with the incomplete gear 24 and the rack 25, and accumulated dust can be preliminarily cleaned while being filtered.

S2: and then the high-temperature flue gas in the S1 passes through the filter bag 5 for filtering treatment, and the dust particles after filtering are attached to the surface wall of the filter bag 5.

S3: when the dust on the surface of the filter bag 5 is excessively accumulated, the pressure in the air inlet pipe 2 is increased, and the pressure detection touch part 8 starts the dust removal mechanism 7 to operate, so that the dust attached to the surface of the filter bag 5 is deeply removed.

S4: and finally, the purified gas is discharged from the gas outlet pipe 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a laterite-nickel ore deposit high temperature flue gas sack dust collecting equipment, includes box (1), and supreme intercommunication in proper order has intake pipe (2) and outlet duct (3) down, its characterized in that to follow box (1) lateral part: the dust removal device is characterized in that a plurality of bag frames (4) are fixedly connected to the inner cavity of the box body (1) at equal intervals, a filter bag (5) is fixedly connected to the inner part of each bag frame (4), a flow guide piece (6) is arranged between the filter bag (5) and the air inlet pipe (2) in the inner cavity of the box body (1), dust removal mechanisms (7) are symmetrically installed inside the bag frames (4) by taking the filter bag (5) as a symmetry axis, and a pressure detection touch piece (8) used for controlling the opening and closing of the dust removal mechanisms (7) is arranged outside the air inlet pipe (2);

the dust removal mechanism (7) comprises a mounting plate (71), a rotating shaft (72), rolling wheels (73), a folding rod (74), a knocking ball (75), an elastic shifting plate (76) and a shovel plate (77), mounting chutes are formed in the front cavity wall and the rear cavity wall of the bag frame (4) and are located on the side walls of the filter bag (5), the mounting plate (71) is connected inside each mounting chute in a sliding mode, a reciprocating driving piece (78) is fixedly connected between the mounting plate (71) and the bag frame (4) together, the side end faces of the two front and rear adjacent mounting plates (71) are fixedly connected with a U-shaped frame (79) together, the rotating shaft (72) is connected between the two front and rear adjacent mounting plates (71) in a rotating mode together, the front end of the rotating shaft (72) penetrates through the mounting plate (71) and is fixedly connected with the rolling wheels (73), the side end face of the bag frame (4) is fixedly connected with a friction plate (710) which is in collision with the outer surface wall of the rolling wheels (73), mounting rings (711) are symmetrically sleeved on the outer sides of the rotating shaft (72) and are fixedly connected with two support plates (712) which are used for limiting the supporting plates (713) together, the outside equidistance of axostylus axostyle (714) is rotated and is connected with a plurality of book shape pole (74), and the common fixedly connected with torsional spring (715) of book shape pole (74) side end face and axostylus axostyle (714) exterior wall, and torsional spring (715) cover is established outside axostylus axostyle (714), the one end fixedly connected with of pivot (72) is kept away from in book shape pole (74) strikes ball (75), pivot (72) circumference outer wall equidistance fixedly connected with a plurality of and book shape pole (74) are corresponding simultaneously be used for with book shape pole (74) matched with elasticity group board (76), common fixedly connected with shovel board (77) between two adjacent mounting panels (71) around, the part rotation that shovel board (77) side end face is close to filter bag (5) is connected with gauge wheel (716).

2. The cloth bag dust removal equipment for the laterite-nickel ore high-temperature flue gas according to claim 1, characterized in that: the pressure detection triggering part (8) comprises a cylinder (81), a pressing spring (82) and a pushing plug (83), the cylinder (81) is communicated with the outside of the air inlet pipe (2), the inner cavity of the cylinder (81) is fixedly connected with the pushing plug (83) through the fixing rod matched with the pressing spring (82), and a triggering point (84) is arranged in the inner cavity of the cylinder (81).

3. The cloth bag dust removal equipment for the laterite-nickel ore high-temperature flue gas according to claim 1, characterized in that: the flow guide piece (6) comprises a flow guide cylinder (61) and a partition plate (62), the inner cavity of the box body (1) is located between the filter bag (5) and the air inlet pipe (2) and fixedly connected with the flow guide cylinder (61), the flow guide cylinder (61) is in a shape with two wide ends and a narrow middle part, and the inner cavity of the flow guide cylinder (61) is divided into a plurality of flow guide channels (63) through the partition plate (62).

4. The cloth bag dust removal equipment for the laterite-nickel ore high-temperature flue gas according to claim 3, characterized in that: the utility model discloses a box (1) front portion fixedly connected with conveyer pipe (9), conveyer pipe (9) lower part intercommunication has heat absorption branch pipe (10), and inside heat absorption branch pipe (10) rear portion extended to water conservancy diversion channel (63), the part that heat absorption branch pipe (10) are located water conservancy diversion channel (63) inner chamber was for being close to conveyer pipe (9) one end height keep away from the low tilt state of conveyer pipe (9) one end, conveyer pipe (9) upper portion intercommunication has heat exchange tube (11), conveyer pipe (9) inner chamber has ascending runner (13) and decline runner (14) through division board (12) partition.

5. The cloth bag dust removal equipment for laterite-nickel ore high-temperature flue gas according to claim 4, characterized in that: bag frame (4) front portion equidistance sliding connection has a plurality of U-shaped frame (15), and common fixedly connected with connecting plate between two adjacent U-shaped frames (15), the common fixedly connected with sliding spring (16) of terminal surface before U-shaped frame (15) side end face and bag frame (4), the inside left end face of U-shaped frame (15) and right-hand member face all articulate through lug cooperation torsion spring has connecting rod (17), and connecting rod (17) are close to the one end fixedly connected with of filter bag (5) and clean brush stick (18), and clean the equal fixedly connected with gauge circle piece (19) in both ends of brush stick (18), box (1) inner chamber has slide bar (20) through sliding ring sliding connection, and slide bar (20) are close to the one end fixedly connected with arc extrusion piece (21) of U-shaped frame (15), and U-shaped frame (15) upper end face fixedly connected with and arc extrusion piece (21) matched with extrusion post (22), rising runner (13) and decline runner (14) inner chamber are provided with leaf oar (23) respectively, and leaf oar (23) coaxial fixedly connected with gear (24), the incomplete gear (24) that gear (20) is close to incomplete gear meshing mutually.

6. The cloth bag dust removal equipment for the laterite-nickel ore high-temperature flue gas according to claim 1, characterized in that: the U-shaped frame (79) is fixedly connected with an arch frame (26) outside.

7. The cloth bag dust removal equipment for the laterite-nickel ore high-temperature flue gas according to claim 1, characterized in that: the inner cavity of the knocking ball (75) is a cavity, and the spherical inner cavity of the knocking ball is fixedly connected with a plurality of vibrating ball blocks through a shaking spring.

8. A cloth bag dust removal method for laterite-nickel ore high-temperature flue gas is characterized by being completed by matching the cloth bag dust removal equipment for laterite-nickel ore high-temperature flue gas as in claim 1, and comprising the following steps:

s1: firstly, high-temperature flue gas is introduced into a box body (1) through an air inlet pipe (2), and then the high-temperature flue gas is guided by a flow guide piece (6) and divided into a plurality of parts which uniformly penetrate through a filter bag (5);

s2: then the high-temperature flue gas in the S1 passes through a filter bag (5) for filtration treatment, and the dust particles after filtration are attached to the surface wall of the filter bag (5);

s3: then, the dust attached to the surface of the filter bag (5) in the S2 is removed by using a dust removal mechanism (7);

s4: and finally, the purified gas is discharged from the gas outlet pipe (3).