Spray cooling device of kiln head dust collector
Technical Field
The invention relates to the technical field of cement clinker production equipment, in particular to a spray cooling device of a kiln head dust collector.
Background
Because the kiln head smoke temperature of the rotary kiln is high and can reach 260 ℃, and the smoke concentration is high, the cooling and dust removal of the kiln head of the rotary kiln are indispensable working contents. The cloth bag dust collector is widely adopted in the prior art, but after long-term use, the dust removing filter bag is blocked by dust very quickly due to the high humidity and viscosity of the waste gas of the rotary kiln, so that the ventilation resistance is increased, the production is influenced, the pollution to the working environment is serious, and the cleaning workload is high.
In order to reduce the content of particles in the exhaust gas, a spraying or atomizing device is generally arranged in the existing cooling device to pre-treat the exhaust gas in advance, so that the content of the particles in the exhaust gas is reduced, the service life of a dust removing filter bag is prolonged, and the cleaning frequency is reduced, as disclosed in Chinese patent publication No. CN2924453Y, a kiln dust spraying evaporation cooling cloth bag dust removing device for cooling and removing high-temperature smoke dust of a kiln generates very fine atomized particles in the operation of a spraying evaporation cooler and rapidly evaporates in the high-temperature smoke gas, and a large amount of heat in the smoke gas is absorbed, so that the smoke gas is reduced by 25%, and the cloth bag dust remover is reduced in load;
however, in actual use, continuous water supply is needed in the spraying process, so that the use cost is increased, the sewage is accumulated, the environment is polluted, and the particles in the sewage are not recovered and directly discharged, so that the land is easy to be polluted.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a spray cooling device for a kiln head dust collector.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the spray cooling device of the kiln head dust collector comprises a dust collection barrel, a conveying pipe and a dust collection cover, wherein a spray mechanism is fixedly arranged in the conveying pipe, a guide part matched with the spray mechanism is arranged on the conveying pipe, a collecting barrel is fixedly arranged at the lower end of the guide part, a compression assembly and a separation assembly for separating particles are arranged in the collecting barrel, and a sealing door is arranged at one side of the collecting barrel;
and a filter assembly for filtering air is arranged in the conveying pipe and is matched with the guide part.
Further, the guide member includes two guide plates that slope set up, two guide plates are V type structure and the lower extreme be equipped with the opening of collection tube matched with.
Further, two inclined plates are arranged in the collecting cylinder, the lower ends of the inclined plates are provided with supporting plates, and a channel is formed between the two inclined plates.
Further, the compression assembly comprises two pressing plates, the two pressing plates are oppositely arranged, and an air cylinder A matched with the pressing plates is fixedly arranged in the collecting cylinder.
Further, the collecting cylinder is rotatably provided with a supporting plate matched with the two pressing plates, the collecting cylinder is provided with a rotary cylinder matched with the supporting plate, and the collecting cylinder is also provided with a limiting assembly matched with the supporting plate.
Further, the holding grooves are formed in the lower ends of the supporting plates, the two pressing plates are respectively arranged in the two holding grooves, and the pressing plates are L-shaped plates.
Further, the limiting assembly comprises a limiting column movably inserted with the collecting cylinder, a cylinder B is arranged on one side of the collecting cylinder, and an output shaft of the cylinder B is fixedly connected with the limiting column.
Furthermore, the support plate is internally provided with a cavity, a plurality of heating wires are arranged in the cavity, and heat conduction oil is filled in the cavity.
Further, the separation assembly comprises a conveying plate matched with the sealing door, a filtering part is arranged on the conveying plate, a plurality of filtering holes are formed in the filtering part, and the separation assembly further comprises a filter screen arranged in the collecting cylinder.
Further, the filter component comprises a mounting frame fixedly arranged in the conveying pipe, a filter screen plate is fixedly arranged on the mounting frame, fan blades are rotatably arranged on the filter screen plate, and one side of each fan blade is fixedly connected with a hairbrush through a rotating shaft.
The spray cooling device for the kiln head dust collector has the beneficial effects that:
in the invention, the mixture of the particles and the water is collected by the collecting cylinder, and the particles are collected and compressed to form a block structure and are stacked in a concentrated way, and the waste water in the mixture can be extruded in the compression process and filtered and collected, so that the waste water can be recycled or discharged after being processed in a concentrated way, the cost is reduced, and the pollution to the environment is reduced;
secondly, in the invention, the heating cavity and the heating wire are arranged to heat the supporting plate, and when the mixture is compressed, the mixture is heated to form a hot-pressing environment, so that the combination among the particles is tighter, the loosening and the increase of the cleaning difficulty in the moving position are prevented, and the cleaning is more convenient.
Drawings
FIG. 1 is a schematic diagram of a spray cooling device of a kiln head dust collector;
FIG. 2 is a schematic view of a guide plate according to the present invention;
FIG. 3 is an enlarged schematic view of the area A of the present invention;
FIG. 4 is a schematic view of the structure of a screen panel of the present invention;
fig. 5 is a schematic view of the structure of the cylinder B of the present invention.
In the figure: 1. a dust collection barrel; 2. a delivery tube; 3. a dust collection cover; 4. a spraying mechanism; 5. a guide member; 51. a guide plate; 6. a collection cylinder; 61. a sloping plate; 62. a support plate; 7. a compression assembly; 71. a pressing plate; 72. a cylinder A; 73. a supporting plate; 74. a limit column; 75. a cylinder B; 76. a heating wire; 8. a separation assembly; 81. a conveying plate; 82. a filtering part; 83. a filter screen; 9. a filter assembly; 91. a mounting frame; 92. a filter screen plate; 93. a fan blade; 94. a brush.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-5, a spray cooling device of a kiln head dust collector comprises a dust collection barrel 1, a conveying pipe 2 and a dust collection cover 3, wherein the dust collection barrel 1 is connected with the kiln head and the dust collection device is connected with the dust collector through the dust collection cover 3, a spraying mechanism 4 is fixedly arranged in the conveying pipe 2, a guide part 5 matched with the spraying mechanism 4 is arranged on the conveying pipe 2, a collecting cylinder 6 is fixedly arranged at the lower end of the guide part 5, a compression assembly 7 and a separation assembly 8 for separating particles are arranged in the collecting cylinder 6, and a sealing door is arranged at one side of the collecting cylinder 6;
a filter assembly 9 for filtering air is arranged in the conveying pipe 2, and the filter assembly 9 is matched with the guide part 5.
In the invention, the mixture of the particles and the water mist is collected through the cooperation of the guide part 5 and the collecting cylinder 6, and the particles are collected and compressed through the compression assembly 7 to form a block structure and are piled up in a concentrated way, the waste water in the mixture can be extruded in the compression process, and the waste water is filtered and collected through the separation assembly 8, so that the waste water can be recycled or discharged after being treated in a concentrated way, the cost is reduced, and the pollution to the environment is reduced
Further, in this embodiment, the guiding member 5 includes two guiding plates 51 disposed obliquely, the two guiding plates 51 are in a V-shaped structure, and an opening matched with the collecting cylinder 6 is provided at the lower end of the guiding plate, so that the mixture formed by the condensed particles of water mist is guided into the collecting cylinder 6 for collection.
Further, in this embodiment, two inclined plates 61 are disposed in the collecting cylinder 6, the lower ends of the inclined plates 61 are both provided with a supporting plate 62, and a channel is formed between the two inclined plates 61 for guiding the mixture, so as to guide the mixture, thereby facilitating the subsequent compression.
Further, in this embodiment, the compression assembly 7 includes two pressing plates 71, the two pressing plates 71 are disposed opposite to each other, and an air cylinder a72 matched with the pressing plates 71 is fixedly disposed in the collecting cylinder 6, and when the mixture is compressed, the air cylinder a72 drives the pressing plates 71 to move, so that the two pressing plates 71 generate a trend of moving in opposite directions, and the mixture is extruded, so that the mixture is compressed.
In this embodiment, the tray 73 matched with the two pressing plates 71 is rotatably arranged in the collecting cylinder 6, the rotary air cylinder matched with the tray 73 is arranged on the collecting cylinder 6, and the limiting component matched with the tray 73 is also arranged on the collecting cylinder 6, so that the mixture is supported by the limiting component matched with the tray 73, and the mixture is prevented from losing in the compression process to cause compression failure.
In some embodiments, the lower end of the supporting plate 62 is provided with accommodating grooves, the two pressing plates 71 are respectively arranged in the two accommodating grooves, the pressing plates 71 are L-shaped plates, the mixture is prevented from being blocked due to the protruding arrangement of the pressing plates 71, the mixture is prevented from being accumulated on the pressing plates 71, the L-shaped plates can be structured to prevent the mixture from being extruded due to too small space between the two pressing plates 71 during compression, and a plurality of water permeable holes are formed in the pressing plates 71.
In some embodiments, the limiting assembly comprises a limiting column 74 movably inserted into the collecting cylinder 6, one side of the collecting cylinder 6 is provided with a cylinder B75, an output shaft of the cylinder B75 is fixedly connected with the limiting column 74, and the position of the limiting column 74 is controlled through the cylinder B75 so as to support or release the supporting plate 73, so that the compressed mixture can be conveniently moved to the lower side of the supporting plate 73.
In this embodiment, the supporting plate 73 is internally provided with a cavity, a plurality of heating wires 76 are arranged in the cavity, heat conducting oil is filled in the cavity, and the heat conducting oil is heated by the heating wires 76, so that the supporting plate 73 is heated, the compressed mixture is heated by the supporting plate 73 to fix the shape, and the mixture is prevented from loosening when the mixture is moved.
In detail, in this embodiment, the separation assembly 8 includes a conveying plate 81 matched with the sealing door, a filtering portion 82 is disposed on the conveying plate 81, a plurality of filtering holes are disposed on the filtering portion 82, the separation assembly 8 further includes a filter screen 83 disposed in the collecting cylinder 6, and the filtering portion 82 and the filter screen 83 are used for filtering the wastewater to separate the particulate matters from the water, so as to facilitate reuse.
In more detail, in this embodiment, the filter assembly 9 includes a mounting frame 91 fixedly disposed in the conveying pipe 2, a filter screen plate 92 is fixedly disposed on the mounting frame 91, a fan blade 93 is rotatably disposed on the filter screen plate 92, one side of the fan blade 93 is fixedly connected with a brush 94 through a rotating shaft, and the fan blade 93 and the conveying pipe 2 are acted on by air flow, so that the fan blade 93 rotates to drive the brush 94 to rotate to clean the filter screen plate 92, and the maintenance frequency of the filter screen plate 92 is reduced.
The working mode is as follows; during operation, the dust collection barrel 1 is connected with the kiln head of the rotary kiln, the dust collection hood 3 is connected with the dust collector, the spraying mechanism 4 is used for spraying to reduce the temperature of waste gas flowing through the conveying pipe 2, the ageing of the dust collector is avoided, part of particles and water mist in the waste gas form a mixture, the mixture sinks into the collecting barrel 6 along the guide part 5, the air cylinder A72 drives the pressing plates 71 to move, so that the two pressing plates 71 generate a trend of opposite movement, the mixture is extruded, the mixture is compressed, the heat conducting oil is heated through the heating wires 76, the supporting plate 73 is heated, the compressed mixture is heated to a fixed shape through the supporting plate 73, the mixture is prevented from loosening when the mixture is moved, after the compression is completed, the air cylinder B75 is used for controlling the limit column 74, the supporting plate 73 is rotated under the action of gravity or a rotary air cylinder to move the compressed mixture onto the conveying plate 81 and the filtering part 82, the extruded waste water moves onto the filtering part 82 along the conveying plate 81, and is filtered by the filtering screens 82 and 83 in sequence;
the air flowing through the conveying pipe 2 is further filtered through the filter screen plate 92, and the fan blades 93 and the air flow in the conveying pipe 2 act, so that the fan blades 93 rotate to drive the hairbrushes 94 to rotate to clean the filter screen plate 92, the maintenance frequency of the filter screen plate 92 is reduced, and brushed particles are conveyed into the collecting cylinder 6 along the guide part 5 to be collected.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.