Composite dust removal device for sintering mixer

Abstract

The present invention provides a composite dust removal device for a sintering mixer, comprising: a belt that delivers materials from the feed end of the mixing chamber into the mixing chamber; a steel wire rope that extends from the feed end of the mixing chamber to one side of the discharge end along the conveying direction of the material; a first steam pipe that is suspended on the steel wire rope and covers at least part of the belt; a plurality of first nozzles that are spaced apart along the conveying direction of the material on the first steam pipe; and a steam injection direction of at least part of the first nozzles that is perpendicular to the conveying direction of the material. The present invention arranges a steam pipe above the belt at the feed end of the mixing chamber, so that after the steam ejected from the steam pipe contacts the dust particles and forms liquid crystal nuclei on the dust particles, the steam undergoes phase change and condensation on the surface of the nucleated particles, and the wetted dust particles collide and contact with each other during the movement process, and then condense and grow, and the dust-containing droplets with increased particle size fall back into the material of the drum mixer or continue to lead to a specific dust removal air duct under the interception effect of the steam and the action of their own gravity.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal equipment, and in particular to a composite dust removal device for a sintering mixer. Background Art

[0002] In order to ensure the granulation effect, the quicklime slaking process is generally adopted in the raw material batching stage of sintering, that is, quicklime, namely calcium oxide (CaO), is generally added in the raw material batching stage of sintering, and then water is added to make calcium oxide and water react chemically to produce calcium hydroxide. A large amount of heat is released during the chemical reaction. This process can strengthen the sintering process, increase the material temperature, and reduce the over-humidification phenomenon in the sintering process; the surface of slaked lime is in a colloidal state, with strong water absorption and strong adhesion, which can improve the spheroidization of the sintered mixture.

[0003] The heat generated by the digestion of quicklime will produce a large amount of water vapor. When the water vapor diffuses outward, it will carry a large amount of dust, which will pollute the surrounding environment. The characteristics of dust are: high humidity, high concentration, light dust, and fine particles. This part of the dust-containing gas is in a saturated state. The water vapor will condense into water in the pipeline. The mixture of water and dust is in a colloidal state with strong adhesion. It is easy to block the dust removal pipeline and cause adhesion to the dust removal equipment, affecting the normal operation of the dust removal system. In severe cases, the entire dust removal system can be paralyzed in a very short time, causing dust-containing gas to overflow. The air is also filled with lime dust, which causes strong irritation to the human respiratory tract. For a long time, the surrounding areas are covered with white lime dust.

[0004] The existing dust removal equipment is mainly wet dust collector. On the one hand, due to the high initial dust concentration of the exhaust gas and limited dust removal efficiency, it is difficult to meet the existing environmental protection emission requirements; on the other hand, in order to prevent high-viscosity dust from clogging the dust removal pipeline, water must be sprayed along the pipeline from the dust removal point to the entrance of the dust removal equipment, which will produce a large amount of sewage, and the sintering process itself is difficult to absorb all of it, which will bring about the problem of sewage treatment. Summary of the invention

[0005] The present invention proposes a composite dust removal device for a sintering mixer, which is used to solve the defects of easy blockage and low dust removal efficiency in the prior art. A steam pipe is arranged above the belt at the feed end of the mixing chamber, so that after the steam sprayed from the steam pipe contacts the dust particles and forms liquid crystal nuclei on the dust particles, the steam undergoes phase change and condensation on the surface of the nucleated particles. The wetted dust particles collide and contact with each other during the movement, and then condense and grow. The dust-containing droplets with increased particle size fall back into the material of the drum mixer or continue to lead to a specific dust removal duct under the interception effect of the steam and the action of their own gravity.

[0006] A composite dust removal device for a sintering mixer provided by the present invention comprises: a mixing chamber, a belt, a steel wire rope, a first steam pipe and a first nozzle;

[0007] The belt delivers the material into the mixing chamber from the feeding end of the mixing chamber;

[0008] The steel wire rope extends from the feeding end to the discharging end of the mixing chamber along the conveying direction of the material;

[0009] The first steam pipe is suspended on the steel wire rope and covers at least a portion of the belt;

[0010] A plurality of the first nozzles are arranged on the first steam pipe at intervals along the conveying direction of the material;

[0011] Wherein, the steam injection direction of at least part of the first nozzles is perpendicular to the conveying direction of the material.

[0012] According to one embodiment of the present invention, it further comprises: a protective cover, two protective covers forming a protective assembly, each protective assembly being arranged on a side of the first steam pipe facing the top of the mixing chamber corresponding to the first nozzle;

[0013] Wherein, the protective cover comprises: a first guide piece and a second guide piece;

[0014] The first guide piece is vertically arranged close to one side of the steel wire rope;

[0015] Therefore, one end of the second guide piece is connected to the first guide piece, and the other end is tangent to the first steam pipe.

[0016] Specifically, this embodiment provides an implementation method of a protective cover, by setting a protective cover on the side of the first steam pipe facing the top of the mixing chamber, to prevent dust from accumulating above the first steam pipe during the process of belt conveying materials, resulting in an increase in the weight of the first steam pipe, increasing the stress on the wire rope, and ultimately causing deformation problems.

[0017] Furthermore, by configuring the protective cover as a vertical first guide piece and an inclined second guide piece, dust on the first steam pipe is guided into the mixing chamber.

[0018] According to one embodiment of the present invention, it further comprises: a second steam pipe, a third steam pipe and a second nozzle;

[0019] The second steam pipe extends from the feed end of the mixing chamber into the bottom of the belt along the conveying direction of the material;

[0020] The third steam pipe is arranged at the output end of the second steam pipe and forms a T-shaped structure with the second steam pipe;

[0021] A plurality of the second nozzles are arranged at intervals on the surface of the third steam pipe and extend toward one side of the material.

[0022] Specifically, this embodiment provides an implementation method of arranging a second steam pipe below the belt. By arranging the second steam pipe below the belt, dust in the mixing chamber is prevented from overflowing from the lower part of the feeding end of the mixing chamber.

[0023] Furthermore, the second nozzle is extended toward one side of the material, which also ensures that the steam in the third steam pipe can be sprayed toward the overflow direction of the dust under the belt. By arranging the second steam pipe, the third steam pipe and the second nozzle, the dust under the belt is suppressed, and the dust is suppressed from escaping from the feed end of the mixing chamber, thereby avoiding unorganized emissions.

[0024] According to an embodiment of the present invention, it also includes: a first air duct, a second air duct, a third air duct, an arc-shaped air duct and a dust collector;

[0025] The first air duct is connected to the discharge end of the mixing chamber and is arranged in the vertical direction;

[0026] The first air duct and the second air duct form an angle;

[0027] One end of the third air duct is connected to the second air duct through the arc-shaped air duct, and the other end extends into the dust collector;

[0028] Wherein, the included angle between the first air duct and the second air duct is greater than 60°.

[0029] Specifically, this embodiment provides an implementation method of setting a dust collector at the discharge end of the mixing chamber, and by setting a first air duct, a second air duct, a third air duct and an arc-shaped air duct, the dust in the mixing chamber is transported to the dust collector.

[0030] Furthermore, the second air duct is inclined so as to allow the dust to pass smoothly through the arc-shaped air duct, reduce dust deposition, and be directly transported to the dust collector along the vertically arranged third air duct.

[0031] According to one embodiment of the present invention, it also includes: a gusset plate, an elastic part, a detector and a dust beating mechanism;

[0032] The gusset plate is arranged on the side of the arc-shaped air duct facing the dust collector, and is rotatably connected to the arc-shaped air duct through the elastic part;

[0033] The detector is arranged inside the arc-shaped air duct and is used to detect the amount of dust in the arc-shaped air duct;

[0034] The dust beating mechanism is arranged inside the arc-shaped air duct and is used for beating the dust deposited on the gusset plate.

[0035] Specifically, this embodiment provides an implementation method for cleaning the dust deposited inside the curved air duct. The buckle plate is rotatably connected to the bottom of the curved air duct through an elastic part, thereby realizing the opening and closing of the curved air duct.

[0036] Furthermore, the dust beating mechanism beats the buckle plate according to the dust amount fed back by the detector, and the dust falls from the opening of the arc-shaped air duct when the buckle plate is opened.

[0037] In one application scenario, the elastic part is a torsion spring.

[0038] According to one embodiment of the present invention, the dust beating mechanism comprises: a telescopic rod and a scraper;

[0039] The telescopic rod reciprocates in the vertical direction;

[0040] One end of the scraper is connected to the telescopic rod, and the other end is in contact with the gusset plate toward the inner side of the arc-shaped air duct.

[0041] Specifically, this embodiment provides an implementation method of a dust beating mechanism, in which the telescopic rod realizes the adjustment of vertical displacement according to the amount of dust feedback from the detector, and the scraper is connected to the telescopic rod to realize reciprocating motion in the vertical direction with the telescopic rod, thereby scraping the dust on the inner surface of the buckle plate.

[0042] It should be noted that after receiving the signal feedback from the detector, the telescopic rod reciprocates in the vertical direction, and the scraper repeatedly scratches the buckle plate. The buckle plate rotates around the elastic part under the action of the scraper. When the buckle plate opens, the dust slides out from the gap between the arc-shaped air duct and the buckle plate.

[0043] According to one embodiment of the present invention, it also includes: a baffle, one end of which is connected to the second air duct, and the other end is connected to the inlet of the dust collector, so as to introduce the dust beaten from the buckle plate by the dust beating mechanism into the dust collector.

[0044] Specifically, this embodiment provides an implementation method of a baffle, which sets a baffle at the bottom of the curved air duct so that the dust scraped from the buckle plate can smoothly enter the dust collector under the guidance of the baffle, thereby avoiding environmental pollution problems caused by dust overflow. After the dust-containing hot exhaust gas reacts with water, large particles of dust are filtered and the temperature is reduced.

[0045] According to one embodiment of the present invention, it also includes: an exhaust pipe, an induced draft fan, a filter screen and a backwash nozzle;

[0046] The exhaust pipe extends from the top of the dust collector into the dust collector and is located above the liquid level in the dust collector;

[0047] The induced draft fan is arranged in the exhaust pipe;

[0048] The filter is disposed in the exhaust pipe, between the air inlet end of the air inlet pipe and the induced draft fan;

[0049] The backwash nozzle is arranged between the induced draft fan and the filter screen, and is used to spray high-pressure water or steam to the filter screen;

[0050] Wherein, the filter screen and the backwash nozzle form a filter assembly, and the filter assembly is detachably connected to the exhaust pipe.

[0051] Specifically, this embodiment provides an implementation method of arranging an exhaust pipe above the dust collector, the lower end of the exhaust pipe is located above the liquid level of the dust collector, and a movable door, a single-layer or double-layer filter, an induced draft fan and a backwash nozzle are arranged on the exhaust pipe. The filter is regularly washed by high-pressure water or steam sprayed from the backwash nozzle, and the filter and the backwash nozzle can also be removed as a whole through the movable door for washing.

[0052] In an application scenario, the filter screen is composed of two layers, and the corresponding backwash nozzles are also composed of two groups, that is, it includes two filter components. The gas after two-stage filtration is discharged into the atmosphere under the action of the induced draft fan.

[0053] According to one embodiment of the present invention, it also includes: a first water level gauge, a second water level gauge, a stirring paddle and a sewage pool;

[0054] The first water level gauge is disposed in the dust collector;

[0055] The stirring paddle and the second water level gauge are arranged in the sewage pool;

[0056] Wherein, the dust collector comprises: an overflow port and a drain port;

[0057] The overflow outlet and the drain outlet are both connected to the sewage pool through pipelines.

[0058] Specifically, this embodiment provides an implementation method of a sewage pool. By setting a first water level gauge in the dust collector and a second water level gauge in the sewage pool, the water levels in the dust collector and the sewage pool can be known, and the dust collector and the sewage pool can be replenished with water according to the water levels.

[0059] Furthermore, by arranging an overflow port, the water in the dust collector can overflow into the sewage pool when there is too much water. By arranging the overflow port, the stability of the water level in the dust collector and the dust removal effect are guaranteed.

[0060] Furthermore, by setting a stirring paddle, when the water level in the sewage pool reaches a preset water level, the stirring paddle is used to stir the sewage pool to prevent the sewage in the sewage pool from being too turbid and clogging the pipeline.

[0061] In one application scenario, the sewage tank is also provided with an inspection hole, through which the sewage tank and the agitator can be inspected.

[0062] According to one embodiment of the present invention, it further includes: a water storage tank and a water pump, one end of the water pump is connected to the water storage tank, and the other end is connected to the sewage tank, the dust collector, the first steam pipe and the second steam pipe.

[0063] Specifically, this embodiment provides a method of supplying water to a sewage pool, a dust collector, a first steam pipe and a second steam pipe by setting a water storage tank and a water pump, and flow meters and valves are also provided on the pipelines accordingly.

[0064] In one application scenario, the sewage in the sewage pool can be sent to the first steam pipe and the second steam pipe for use after being supplied by a water pump and stirred and conditioned by a stirring paddle. The dust-removed sewage is sent to the mixer for recycling after conditioning, thereby reducing the interference of sludge on the stability of the raw material components.

[0065] The above one or more technical solutions in the present invention have at least one of the following technical effects: a composite dust removal device for a sintering mixer provided by the present invention is provided, by arranging a steam pipe above the belt at the feed end of the mixing chamber, so that after the steam sprayed from the steam pipe contacts the dust particles and forms liquid crystal nuclei on the dust particles, the steam undergoes phase change and condenses on the surface of the nucleated particles, and the wetted dust particles collide and contact with each other during the movement, and then condense and grow. The dust-containing droplets with increased particle size fall back into the material of the drum mixer or continue to pass into a specific dust removal duct under the interception effect of the steam and their own gravity.

[0066] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0068] Figure 1 This is one of the schematic diagrams of the assembly relationship of the composite dust removal device for a sintering mixer provided by the present invention;

[0069] Figure 2 This is the second schematic diagram of the assembly relationship of the composite dust removal device for a sintering mixer provided by the present invention;

[0070] Figure 3This is the third schematic diagram of the assembly relationship of the composite dust removal device for a sintering mixer provided by the present invention;

[0071] Figure 4 This is the fourth schematic diagram of the assembly relationship of the composite dust removal device for a sintering mixer provided by the present invention;

[0072] Figure 5 This is the fifth schematic diagram of the assembly relationship of the composite dust removal device for a sintering mixer provided by the present invention;

[0073] Figure 6 This is the sixth schematic diagram of the assembly relationship of the composite dust removal device for a sintering mixer provided by the present invention;

[0074] Figure 7 This is the seventh schematic diagram of the assembly relationship of the composite dust removal device for a sintering mixer provided by the present invention;

[0075] Figure 8 It is a schematic diagram of condensation and growth of steam phase change particles in the composite dust removal device of the sintering mixer provided by the present invention;

[0076] Fig. 9 This is the eighth schematic diagram of the assembly relationship of the composite dust removal device for a sintering mixer provided by the present invention.

[0077] Reference numerals:

[0078] 10. Mixing chamber; 20. Belt; 30. Steel wire rope;

[0079] 40. first steam pipe; 41. first nozzle; 50. protective cover;

[0080] 51. first guide plate; 52. second guide plate; 60. second steam pipe;

[0081] 61. third steam pipe; 62. second nozzle; 70. first air duct;

[0082] 71. Second air duct; 72. Third air duct; 73. Curved air duct;

[0083] 731, buckle plate; 732, elastic part; 733, detector;

[0084] 734, telescopic rod; 735, scraper; 74, baffle;

[0085] 80. Dust collector; 81. Exhaust pipe; 82. Induced draft fan;

[0086] 83. Filter screen; 84. Backwash nozzle; 85. First water level gauge;

[0087] 86. Overflow; 87. Drain; 90. Sewage pool;

[0088] 91. Second water level gauge; 92. Agitator paddle; 100. Water storage tank;

[0089] 110, water pump; 120, flow meter; 130, valve;

[0090] 140. Inspection hole. DETAILED DESCRIPTION

[0091] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0092] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0093] Figures 1 to 7 , Fig. 9 These are assembly relationship schematic diagrams of the composite dust removal device for a sintering mixer provided by the present invention. A steel wire rope 30 is arranged at the top of the mixing chamber 10, and the steel wire rope 30 is arranged at the upper part of the belt 20. A first steam pipe 40 is suspended on the steel wire rope 30 corresponding to the first third area of ​​the mixing chamber 10, and a plurality of evenly distributed first nozzles 41 are installed on the first steam pipe 40. After the steam contacts the dust particles caused by the rotation of the mixing chamber 10, heat exchange occurs, the steam condenses from the gas phase to the liquid phase and adheres to the surface of the dust particles to form liquid crystal nuclei, the wetted dust particles collide and contact with each other during the movement, and then condense and grow, and the grown dust droplets fall back into the material of the mixing chamber 10 or continue to a specific dust removal pipeline under the interception effect of the steam and its own gravity. The present invention utilizes the principle of steam phase change to promote the condensation and growth of particles and then self-sedimentation, and sprays steam into the mixing chamber 10 to reduce the amount of particles generated.

[0094] Figure 8This is a schematic diagram of the condensation and growth of steam phase change particles in the composite dust removal device of the sintering mixer provided by the present invention. Steam is sprayed into the upper part of the belt 20 at the feed end of the mixing chamber 10, so that after the steam sprayed from the steam pipe contacts the dust particles and forms liquid crystal nuclei on the dust particles, the steam undergoes phase change and condensation on the surface of the nucleated particles. The wetted dust particles collide and contact with each other during the movement, and then condense and grow. The dust droplets with increased particle size fall back into the material of the drum mixer or continue to flow to a specific dust removal air duct under the interception effect of the steam and its own gravity. The remaining dust and steam are transported to the water bath dust collector 80 together through a specific dust removal pipeline. After the water bath dust removal, the exhaust gas is discharged into the atmosphere after secondary filtration. Steam is also sprayed into the lower part of the belt 20 at the feed end to prevent dust and steam backflow at the feed end of the drum mixer.

[0095] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0096] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0097] In some specific embodiments of the present invention, Figures 1 to 9 As shown, the present scheme provides a composite dust removal device for a sintering mixer, comprising: a mixing chamber 10, a belt 20, a steel wire rope 30, a first steam pipe 40 and a first nozzle 41; the belt 20 delivers the material into the mixing chamber 10 from the feed end of the mixing chamber 10; the steel wire rope 30 extends from the feed end of the mixing chamber 10 to the discharge end along the conveying direction of the material; the first steam pipe 40 is hoisted on the steel wire rope 30 and covers at least part of the belt 20; a plurality of first nozzles 41 are arranged on the first steam pipe 40 at intervals along the conveying direction of the material; wherein, the steam injection direction of at least part of the first nozzles 41 is perpendicular to the conveying direction of the material.

[0098] In detail, the present invention proposes a composite dust removal device for a sintering mixer to solve the defects of easy blockage and low dust removal efficiency in the prior art. A steam pipe is arranged above the belt 20 at the feed end of the mixing chamber 10, so that after the steam sprayed from the steam pipe contacts the dust particles and forms liquid crystal nuclei on the dust particles, the steam undergoes phase change and condensation on the surface of the nucleated particles. The wetted dust particles collide and contact with each other during the movement, and then condense and grow. The dust droplets with increased particle size fall back into the material of the drum mixer or continue to pass into a specific dust removal duct under the interception effect of the steam and their own gravity.

[0099] In some possible embodiments of the present invention, it also includes: a protective cover 50, two protective covers 50 form a protective assembly, each protective assembly corresponds to the first nozzle 41 and is arranged on the side of the first steam pipe 40 facing the top of the mixing chamber 10; wherein the protective cover 50 includes: a first guide plate 51 and a second guide plate 52; the first guide plate 51 is vertically arranged close to one side of the wire rope 30; so one end of the second guide plate 52 is connected to the first guide plate 51, and the other end is tangent to the first steam pipe 40.

[0100] Specifically, this embodiment provides an implementation method of a protective cover 50, by setting the protective cover 50 on the side of the first steam pipe 40 facing the top of the mixing chamber 10, it is prevented that dust accumulates above the first steam pipe 40 during the process of conveying materials by the belt 20, resulting in an increase in the weight of the first steam pipe 40, increasing the stress on the wire rope 30, and ultimately causing deformation problems.

[0101] Furthermore, by configuring the protective cover 50 to include a vertical first guide piece 51 and an inclined second guide piece 52 , dust on the first steam pipe 40 is guided into the mixing chamber 10 .

[0102] In some possible embodiments of the present invention, it also includes: a second steam pipe 60, a third steam pipe 61 and a second nozzle 62; the second steam pipe 60 extends from the feed end of the mixing chamber 10 into the bottom of the belt 20 along the conveying direction of the material; the third steam pipe 61 is arranged at the output end of the second steam pipe 60 and forms a T-shaped structure with the second steam pipe 60; a plurality of second nozzles 62 are arranged at intervals on the surface of the third steam pipe 61 and extend toward one side of the material.

[0103] Specifically, this embodiment provides an implementation method of disposing a second steam pipe 60 below the belt 20 . By disposing the second steam pipe 60 below the belt 20 , dust in the mixing chamber 10 is prevented from overflowing from the lower part of the feeding end of the mixing chamber 10 .

[0104] Furthermore, the second nozzle 62 is extended toward one side of the material, which also ensures that the steam in the third steam pipe 61 can be sprayed toward the overflow direction of the dust under the belt 20. By setting the second steam pipe 60, the third steam pipe 61 and the second nozzle 62, the dust under the belt 20 is suppressed, and the dust is suppressed from escaping from the feed end of the mixing chamber 10, thereby avoiding unorganized emissions.

[0105] In some possible embodiments of the present invention, the present invention further includes: a first air duct 70, a second air duct 71, a third air duct 72, an arc-shaped air duct 73 and a dust collector 80; the first air duct 70 is connected to the discharge end of the mixing chamber 10 and is arranged in the vertical direction; the first air duct 70 and the second air duct 71 form an angle; one end of the third air duct 72 is connected to the second air duct 71 through the arc-shaped air duct 73, and the other end extends into the dust collector 80; wherein, the angle between the first air duct 70 and the second air duct 71 is greater than 60°.

[0106] Specifically, this embodiment provides an implementation method of setting a dust collector 80 at the discharge end of the mixing chamber 10. By setting a first air duct 70, a second air duct 71, a third air duct 72 and an arc-shaped air duct 73, the dust in the mixing chamber 10 is transported to the dust collector 80.

[0107] Furthermore, the second air duct 71 is inclined so as to allow the dust to pass smoothly through the arc-shaped air duct 73 , thereby reducing dust deposition, and directly transporting the dust to the dust collector 80 along the vertically arranged third air duct 72 .

[0108] In some possible embodiments of the present invention, it also includes: a buckle plate 731, an elastic part 732, a detector 733 and a dust beating mechanism; the buckle plate 731 is arranged on the side of the curved air duct 73 facing the dust collector 80, and is rotatably connected to the curved air duct 73 through the elastic part 732; the detector 733 is arranged inside the curved air duct 73, and is used to detect the amount of dust in the curved air duct 73; the dust beating mechanism is arranged inside the curved air duct 73, and is used to beat the dust deposited on the buckle plate 731.

[0109] Specifically, this embodiment provides an implementation method for cleaning the dust deposited inside the curved air duct 73 . The buckle plate 731 is rotatably connected to the bottom of the curved air duct 73 through the elastic portion 732 , thereby realizing the opening and closing of the curved air duct 73 .

[0110] Furthermore, the dust beating mechanism beats the buckle plate 731 according to the dust amount fed back by the detector 733 , and the dust falls from the opening of the arc-shaped air duct 73 when the buckle plate 731 is opened.

[0111] In one application scenario, the elastic portion 732 is a torsion spring.

[0112] In some possible embodiments of the present invention, the dust beating mechanism includes: a telescopic rod 734 and a scraper 735; the telescopic rod 734 reciprocates in the vertical direction; one end of the scraper 735 is connected to the telescopic rod 734, and the other end abuts against the buckle plate 731 toward the inner side of the arc-shaped air duct 73.

[0113] Specifically, this embodiment provides an implementation method of a dust beating mechanism, in which the telescopic rod 734 adjusts the vertical displacement according to the amount of dust fed back by the detector 733, and the scraper 735 is connected to the telescopic rod 734, so that it can reciprocate in the vertical direction along with the telescopic rod 734, thereby scraping the dust on the inner surface of the buckle plate 731.

[0114] It should be noted that after receiving the signal feedback from the detector 733, the telescopic rod 734 reciprocates in the vertical direction, and the scraper 735 repeatedly scratches the buckle plate 731. The buckle plate 731 rotates around the elastic part 732 under the action of the scraper 735. When the buckle plate 731 is opened, the dust slides out from the gap between the arc-shaped air duct 73 and the buckle plate 731.

[0115] In some possible embodiments of the present invention, it also includes: a baffle 74, one end of the baffle 74 is connected to the second air duct 71, and the other end is connected to the inlet of the dust collector 80, which is used to introduce the dust beaten from the buckle plate 731 by the dust beating mechanism into the dust collector 80.

[0116] Specifically, this embodiment provides an implementation method of the baffle 74. By setting the baffle 74 at the bottom of the curved air duct 73, the dust scraped from the buckle plate 731 can smoothly enter the dust collector 80 under the guidance of the baffle 74, thereby avoiding environmental pollution problems caused by dust overflow. After the dust-containing hot exhaust gas reacts with water, large particles of dust are filtered and the temperature is reduced.

[0117] In some possible embodiments of the present invention, it also includes: an exhaust pipe 81, an induced draft fan 82, a filter 83 and a backwashing nozzle 84; the exhaust pipe 81 extends from the top of the dust collector 80 into the dust collector 80 and is above the liquid level in the dust collector 80; the induced draft fan 82 is arranged in the exhaust pipe 81; the filter 83 is in the exhaust pipe 81, and is arranged between the air inlet end of the air inlet pipe and the induced draft fan 82; the backwashing nozzle 84 is arranged between the induced draft fan 82 and the filter 83, and is used to spray high-pressure water or steam on the filter 83; wherein the filter and the backwashing nozzle 84 form a filter assembly, and the filter assembly is detachably connected to the exhaust pipe 81.

[0118] Specifically, this embodiment provides an implementation method of arranging an exhaust pipe 81 above the dust collector 80, the lower end of the exhaust pipe 81 is located above the liquid level of the dust collector 80, and a movable door, a single-layer or double-layer filter 83, an induced draft fan 82 and a backwash nozzle 84 are arranged on the exhaust pipe 81. The filter is regularly washed by high-pressure water or steam sprayed from the backwash nozzle 84, and the filter 83 and the backwash nozzle 84 can also be removed as a whole through the movable door for washing.

[0119] In an application scenario, the filter screen 83 is composed of two layers, and the corresponding backwash nozzles 84 are also composed of two groups, that is, they include two filter components. The gas after two-stage filtration is discharged into the atmosphere under the action of the induced draft fan 82.

[0120] In some possible embodiments of the present invention, it also includes: a first water level gauge 85, a second water level gauge 91, a stirring paddle 92 and a sewage pool 90; the first water level gauge 85 is arranged in the dust collector 80; the stirring paddle 92 and the second water level gauge 91 are arranged in the sewage pool 90; wherein the dust collector 80 includes: an overflow port 86 and a drain port 87; the overflow port 86 and the drain port 87 are both connected to the sewage pool 90 through pipelines.

[0121] Specifically, this embodiment provides an implementation method of a sewage pool 90. By setting a first water level gauge 85 in the dust collector 80 and a second water level gauge 91 in the sewage pool 90, the digital levels in the dust collector 80 and the sewage pool 90 can be known, and the dust collector 80 and the sewage pool 90 can be replenished with water according to the water levels.

[0122] Furthermore, by setting the overflow port 86, when there is too much water in the dust collector 80, the water can overflow into the sewage pool 90. By setting the overflow port 86, the stability of the water level in the dust collector 80 and the dust removal effect are guaranteed.

[0123] Furthermore, by providing the stirring paddle 92 , when the water level in the sewage pool 90 reaches a preset water level, the stirring paddle 92 is used to stir the sewage pool 90 , thereby preventing the sewage in the sewage pool 90 from being too turbid and clogging the pipeline.

[0124] In one application scenario, the sewage pool 90 is further provided with an inspection hole 140 , through which the sewage pool 90 and the stirring paddle 92 can be inspected.

[0125] In some possible embodiments of the present invention, the present invention further includes: a water tank 100 and a water pump 110 , wherein one end of the water pump 110 is connected to the water tank 100 , and the other end is connected to the sewage pool 90 , the dust collector 80 , the first steam pipe 40 and the second steam pipe 60 .

[0126] Specifically, this embodiment provides a method of supplying water to the sewage pool 90, the dust collector 80, the first steam pipe 40 and the second steam pipe 60 by setting a water storage tank 100 and a water pump 110, and a flow meter 120 and a valve 130 are also provided on the pipeline accordingly.

[0127] In an application scenario, the sewage in the sewage pool 90 can be sent to the first steam pipe 40 and the second steam pipe 60 for use after being supplied by the water pump 110 and stirred and tempered by the agitator 92. The dust-removed sewage is sent to the mixer for recycling after tempering, thereby reducing the interference of sludge on the stability of the raw material components.

[0128] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A composite dust removal device for a sintering mixer, characterized in that: include: A mixing chamber, a belt, a wire rope, a first steam pipe and a first nozzle; The belt delivers the material into the mixing chamber from the feeding end of the mixing chamber; The steel wire rope extends from the feeding end to the discharging end of the mixing chamber along the conveying direction of the material; The first steam pipe is suspended on the steel wire rope and covers at least a portion of the belt; A plurality of the first nozzles are arranged on the first steam pipe at intervals along the conveying direction of the material; Wherein, the steam injection direction of at least part of the first nozzles is perpendicular to the conveying direction of the material; It also includes: a first air duct, a second air duct, a third air duct, an arc-shaped air duct and a dust collector; The first air duct is connected to the discharge end of the mixing chamber and is arranged in the vertical direction; The first air duct and the second air duct form an angle; One end of the third air duct is connected to the second air duct through the arc-shaped air duct, and the other end extends into the dust collector; Wherein, the included angle between the first air duct and the second air duct is greater than 60°; It also includes: a gusset plate, an elastic part, a detector and a dust beating mechanism; The gusset plate is arranged on the side of the arc-shaped air duct facing the dust collector, and is rotatably connected to the arc-shaped air duct through the elastic part; The detector is arranged inside the arc-shaped air duct and is used to detect the amount of dust in the arc-shaped air duct; The dust beating mechanism is arranged inside the arc-shaped air duct and is used to beat the dust deposited on the gusset plate; The dust beating mechanism comprises: a telescopic rod and a scraper; The telescopic rod reciprocates in the vertical direction; One end of the scraper is connected to the telescopic rod, and the other end is in contact with the gusset plate toward the inner side of the arc-shaped air duct.

2. A composite dust removal device for a sintering mixer according to claim 1, characterized in that: Also includes: A protective cover, wherein two protective covers form a protective assembly, and each protective assembly is arranged on a side of the first steam pipe facing the top of the mixing chamber corresponding to the first nozzle; Wherein, the protective cover comprises: a first guide piece and a second guide piece; The first guide piece is vertically arranged close to one side of the steel wire rope; Therefore, one end of the second guide piece is connected to the first guide piece, and the other end is tangent to the first steam pipe.

3. A composite dust removal device for a sintering mixer according to claim 1, characterized in that: Also includes: a second steam pipe, a third steam pipe, and a second nozzle; The second steam pipe extends from the feed end of the mixing chamber into the bottom of the belt along the conveying direction of the material; The third steam pipe is arranged at the output end of the second steam pipe and forms a T-shaped structure with the second steam pipe; A plurality of the second nozzles are arranged at intervals on the surface of the third steam pipe and extend toward one side of the material.

4. A composite dust removal device for a sintering mixer according to claim 1, characterized in that: Also includes: A baffle, one end of which is connected to the second air duct, and the other end of which is connected to the inlet of the dust collector, is used to introduce the dust beaten from the gusset plate by the dust beating mechanism into the dust collector.

5. A composite dust removal device for a sintering mixer according to claim 1, characterized in that: Also includes: Exhaust pipe, induced draft fan, filter screen and backwash nozzle; The exhaust pipe extends from the top of the dust collector into the dust collector and is located above the liquid level in the dust collector; The induced draft fan is arranged in the exhaust pipe; The filter is disposed in the exhaust pipe, between the air inlet end of the exhaust pipe and the induced draft fan; The backwash nozzle is arranged between the induced draft fan and the filter screen, and is used to spray high-pressure water or steam to the filter screen; Wherein, the filter screen and the backwash nozzle form a filter assembly, and the filter assembly is detachably connected to the exhaust pipe.

6. A composite dust removal device for a sintering mixer according to claim 3, characterized in that: Also includes: The first water level gauge, the second water level gauge, the stirring paddle and the sewage tank; The first water level gauge is disposed in the dust collector; The stirring paddle and the second water level gauge are arranged in the sewage pool; Wherein, the dust collector comprises: an overflow port and a drain port; The overflow outlet and the drain outlet are both connected to the sewage pool through pipelines.

7. A composite dust removal device for a sintering mixer according to claim 6, characterized in that: Also includes: A water storage tank and a water pump, one end of the water pump is connected to the water storage tank, and the other end is connected to the sewage tank, the dust collector, the first steam pipe and the second steam pipe.

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