CN111408310A

CN111408310A - Asphalt mixing plant production line pollutant processing apparatus

Info

Publication number: CN111408310A
Application number: CN202010229680.XA
Authority: CN
Inventors: 肖光宇; 戴胜; 余海波; 彭小斌
Original assignee: Hunan Junjia Pavement Material Co ltd
Current assignee: Hunan Junjia Pavement Material Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-07-14

Abstract

The invention provides a pollutant treatment device for an asphalt mixing plant production line, which comprises a mixing tank body for mixing and processing asphalt, supporting legs for supporting the mixing tank body and a self-cleaning filtering mechanism for filtering emissions generated in asphalt production, wherein the supporting legs are fixedly arranged at the bottom of the mixing tank body, and a driving motor is fixedly arranged at the bottom of the mixing tank body, and relates to the field of asphalt processing. This asphalt mixing plant production line pollutant processing apparatus is according to the problem of the pollutant that exists among the current asphalt mixing process, the special construction of the automatically cleaning that designs the filter screen that can adapt to the aperture, both can in time solve the filter screen jam problem, can in time regain the waste material again and reduce equipment's noise, thereby effectual general pitch stirring processing equipment of having solved produces a large amount of harmful substance that easily glue, large aperture filter screen filter effect is poor, small aperture filter screen needs often clean, influence the problem of pitch production and processing's efficiency.

Description

Asphalt mixing plant production line pollutant processing apparatus

Technical Field

The invention relates to the technical field of asphalt processing, in particular to a pollutant treatment device for an asphalt mixing plant production line.

Background

The asphalt mixing plant is a complete set of equipment for producing asphalt concrete in batches, during production, sand materials are subjected to loading, drying, vibration screening and metering to form hot materials, then the hot materials, asphalt oil and mineral powder are weighed and metered and then are mixed according to a certain proportion to form asphalt mixture, wherein dust is generated in the procedures of loading, drying, vibration screening and the like of the sand materials, in addition, asphalt smoke is generated in the mixing process of the asphalt mixture, the green smoke has easy adhesion, asphalt volatile components are condensed into solid and liquid particles, and the mixture has organic matters in a steam state, part of the organic matters are high molecular polymers and can cause serious pollution to the environment, the smoke and dust amount of asphalt waste gas is large, the oily substances are more, and rising substances generated in the mixing process are easy to gather and adhere to each other on a filter screen, so that the normal use of the filter screen is influenced, and the filter screen is often blocked, cleaning process work is very frequent, influences the normal emission of gas in the agitator tank moreover, and then influences normal machining efficiency, and general pitch stirring processing equipment produces a large amount of sticky harmful substance that easily glues, and large aperture filter screen filter effect is poor, and the small aperture filter screen needs often clean, influences the efficiency of pitch production and processing, so needs an asphalt mixing station production line pollutant processing apparatus.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a pollutant treatment device for a production line of an asphalt mixing plant, which solves the problems that general asphalt mixing processing equipment generates a large amount of easily-sticky harmful substances, a large-aperture filter screen has poor filtering effect, a small-aperture filter screen needs to be cleaned frequently, and the efficiency of asphalt production and processing is influenced.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a pollutant treatment device for an asphalt mixing plant production line comprises a mixing tank body for mixing and processing asphalt, supporting legs for supporting the mixing tank body and a self-cleaning filtering mechanism for filtering emissions generated by asphalt production, the supporting legs are fixedly arranged at the bottom of the stirring tank body, the driving motor is fixedly arranged at the bottom of the stirring tank body, an output shaft of the driving motor is fixedly connected with a stirring rotating shaft for stirring asphalt through a coupler, one end of the stirring rotating shaft penetrates through and extends into the stirring tank body, a bearing is arranged on the stirring tank body, the surface of the stirring rotating shaft is fixedly connected with the inner ring of the bearing, the surface of the rotating shaft is fixedly connected with a stirring spiral roller used for stirring asphalt mixture, and the self-cleaning filtering mechanism is arranged inside the stirring tank body.

Preferably, automatically cleaning filtering mechanism is including being used for carrying out the activity breathing bag of filterable fine and close filter screen in advance and being used for clean fine and close filter screen to exhaust gas, fine and close filter screen fixed connection is on the inner wall of the agitator tank jar body, the top of the agitator tank jar body is the arc form, fine and close filter screen setting is in the below on agitator tank jar body arc top, fine and close filter screen setting is directly over activity breathing bag.

Preferably, the activity respiration bag is fixedly connected to the inner wall of the stirring tank body, the sectional view of the activity respiration bag is in an oval shape, the activity respiration bag is positioned right above the stirring rotating shaft, the upper surface of the activity respiration bag is provided with a plurality of rings of annular cleaning brushes for cleaning fine and dense filter screens, the surface of each annular cleaning brush is fixedly connected with an arc cleaning brush, the materials of the annular cleaning brushes and the materials of the arc cleaning brushes are high zinc wires, the surface of the activity respiration bag is provided with a plurality of rings of annular grooves, each annular groove is internally provided with a plurality of through holes for ventilation, the through holes in the two adjacent annular grooves are distributed in a staggered manner, the lower surface of the activity respiration bag is provided with a plurality of communication holes corresponding to the through holes one by one, and the inner wall of each through hole is fixedly connected with a hollow rubber tube, the other end of the hollow rubber tube is fixedly connected with one end of the communicating hole.

Preferably, a plurality of arc elasticity groove has been seted up to the lower surface of activity breathing bag, a plurality of arc elasticity groove is the circumference at the bottom of activity breathing bag and distributes, each the equal fixedly connected with shell fragment that resets of inner wall in arc elasticity groove.

Preferably, the bottom fixedly connected with square pipe of activity breathing bag, the inner wall sliding connection of square pipe has square pole, square pole is kept away from the one end of square pipe and the interior roof fixed connection of activity breathing bag, square pipe is located the positive position in activity breathing bag bottom, the butt joint quad slit has been seted up at the top of stirring pivot, the length of butt joint quad slit is than the length of venturi tube is long, the width of butt joint quad slit's square pipe is wide.

Preferably, a plurality of damping spring is fixedly connected between each hollow rubber tube inside the activity respiration bag, the gas control pipe has been cup jointed to the bottom of activity respiration bag, the outside that the one end of gas control pipe runs through and extends to the agitator tank jar body, the one end fixed mounting of gas control pipe has the gas control valve.

Preferably, the blast pipe has been cup jointed at the top of the agitator tank body, the surface of the agitator tank body articulates there is the feeding closing plate, the fixed surface of feeding closing plate installs the padlock, the fixed surface of the feeding closing plate is connected with the fixed surface of the agitator tank body through the padlock, the discharge gate has been seted up on the surface of the agitator tank body, the inner wall of discharge gate articulates there is ejection of compact closing plate.

(III) advantageous effects

(1) According to the invention, by arranging the self-cleaning filtering mechanism, the filtering net can be automatically cleaned in an untimely manner on the premise of using the filtering net with small aperture, and the special cleaning structure can comprehensively and thoroughly clean the filtering net by utilizing the heat in the tank body and the mechanical structure of stirring rotation.

(2) According to the invention, the movable breathing bag is arranged, the movable breathing bag is internally sealed and communicated with the outside, the expansion and contraction of the movable breathing bag can be controlled through heat, the expanded movable breathing bag can play a role of rubbing the filter screen, on one hand, the filter screen can be cleaned, on the other hand, emissions can be gathered, powder and oily substances are mixed and rubbed, then the mixture returns to the stirring tank, the materials are recovered in time, the energy-saving and environment-friendly effects are good, the contracted movable breathing bag has an excellent noise elimination effect by matching with an elastic structure in the upper air, and the noise of the stirring tank is reduced.

(3) According to the invention, a special self-cleaning structure capable of adapting to a small-aperture filter screen is designed according to the problem of pollutants existing in the existing asphalt stirring process, so that the problem of filter screen blockage can be solved in time, waste materials can be recycled in time, and the noise of equipment is reduced, thereby effectively solving the problems that general asphalt stirring processing equipment generates a large amount of easily-sticky harmful substances, a large-aperture filter screen has poor filtering effect, a small-aperture filter screen needs to be cleaned frequently, and the efficiency of asphalt production and processing is influenced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the construction of the body of the agitator tank of the present invention;

FIG. 3 is a top view of the structure of the mobile breathing bag of the present invention;

fig. 4 is a bottom view of the structure of the active respiration bag of the invention.

Wherein, 1 agitator tank jar body, 2 supporting legs, 3 self-cleaning filtering mechanism, 31 fine and close filter screen, 32 activity breathing bag, 33 gas control valve, 34 annular cleaning brush, 35 arc cleaning brush, 36 annular recess, 37 perforating hole, 38 intercommunicating pore, 39 hollow rubber tube, 310 arc elastic groove, 311 reset shell fragment, 312 square pipe, 313 square pole, 314 butt square hole, 315 damping spring, 316 gas control pipe, 4 driving motor, 5 stirring pivot, 6 stirring helical roll, 7 blast pipe, 8 feeding closing plate, 9 padlock, 10 discharge gates, 11 discharging closing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in FIGS. 1 to 4, the embodiment of the invention provides a pollutant treatment device for a production line of an asphalt mixing plant, which comprises a mixing tank body 1 for performing asphalt mixing processing, support legs 2 for supporting the mixing tank body 1 and a self-cleaning filtering mechanism 3 for filtering emissions generated by asphalt production, wherein the support legs 2 are fixedly arranged at the bottom of the mixing tank body 1, a driving motor 4 is fixedly arranged at the bottom of the mixing tank body 1, an output shaft of the driving motor 4 is fixedly connected with a mixing rotating shaft 5 for mixing asphalt through a coupler, one end of the mixing rotating shaft 5 penetrates through and extends into the mixing tank body 1, a bearing is arranged on the mixing tank body 1, the surface of the mixing rotating shaft 5 is fixedly connected with an inner ring of the bearing, a mixing spiral roller 6 for mixing asphalt mixture is fixedly connected with the surface of the rotating shaft, and the self-cleaning filtering mechanism 3 is arranged in the mixing tank body 1, blast pipe 7 has been cup jointed at the top of the agitator tank body 1, and agitator tank body 1's surface articulates there is feed closing plate 8, and the fixed surface of feed closing plate 8 installs padlock 9, and padlock 9 and agitator tank body 1's fixed surface are passed through on feed closing plate 8's surface and are connected, and discharge gate 10 has been seted up on the surface of the agitator tank body 1, and the inner wall of discharge gate 10 articulates there is ejection of compact closing plate 11.

The self-cleaning filtering mechanism 3 comprises a fine filter screen 31 for pre-filtering exhaust gas and a movable breathing bag 32 for cleaning the fine filter screen 31, the fine filter screen 31 is fixedly connected to the inner wall of the stirring tank body 1, the top of the stirring tank body 1 is arc-shaped, the fine filter screen 31 is arranged below the arc-shaped top of the stirring tank body 1, the fine filter screen 31 is arranged right above the movable breathing bag 32, the movable breathing bag 32 is fixedly connected to the inner wall of the stirring tank body 1, the sectional view of the movable breathing bag 32 is oval-shaped, the movable breathing bag 32 is positioned right above the stirring rotating shaft 5, the upper surface of the movable breathing bag 32 is provided with a plurality of rings of annular cleaning brushes 34 for cleaning the fine filter screen 31, the surfaces of the annular cleaning brushes 34 are fixedly connected with arc-shaped cleaning brushes 35, and the materials of the annular cleaning brushes 34 and the arc-shaped cleaning brushes 35 are high zinc wires, the surface of the movable breathing bag 32 is provided with a plurality of annular grooves 36, a plurality of through holes 37 for ventilation are arranged in each annular groove 36, the through holes 37 in the adjacent two annular grooves 36 are distributed in a staggered manner, a plurality of communicating holes 38 corresponding to the through holes 37 one by one are arranged on the lower surface of the movable breathing bag 32, the inner wall of each through hole 37 is fixedly connected with a hollow rubber tube 39, the other end of the hollow rubber tube 39 is fixedly connected with one end of the communicating hole 38, a plurality of arc-shaped elastic grooves 310 are arranged on the lower surface of the movable breathing bag 32, the plurality of arc-shaped elastic grooves 310 are distributed circumferentially at the bottom of the movable breathing bag 32, the inner wall of each arc-shaped elastic groove 310 is fixedly connected with a reset elastic sheet 311, the bottom of the movable breathing bag 32 is fixedly connected with a square tube 312, and the inner wall of the square tube, one end of the square rod 313 far away from the square pipe 312 is fixedly connected with the inner top wall of the movable breathing bag 32, the square pipe 312 is located in the middle of the bottom of the movable breathing bag 32, a butt-joint square hole 314 is formed in the top of the stirring rotating shaft 5, the length of the butt-joint square hole 314 is longer than that of the square pipe 312, the width of the butt-joint square hole 314, which is wider than that of the square pipe 312, a plurality of damping springs 315 are fixedly connected between hollow rubber pipes 39 inside the movable breathing bag 32, a gas control pipe 316 is sleeved at the bottom of the movable breathing bag 32, one end of the gas control pipe 316 penetrates through and extends to the outside of the stirring tank body 1, and one end of the gas control pipe 316 is fixedly provided with the gas control valve 33.

When the device is used, a power supply is connected, the gas control valve 33 is opened, the interior of the movable breathing bag 32 is communicated with the outside air, the square pipe 312 drops down in the middle of the movable breathing bag 32, the feeding sealing plate 8 is opened, materials are placed in the stirring tank body 1, the feeding sealing plate 8 is closed, the driving motor 4 is started, the driving motor 4 drives the stirring rotating shaft 5 to rotate, the stirring rotating shaft 5 drives the stirring spiral roller 6 to stir asphalt materials, the materials can contact the movable breathing bag 32 in the process of rising powder and oily smoke in the stirring process, a smoke mixture rises through the hollow rubber pipe 39, is filtered through the fine filter screen 31 and then is discharged through the exhaust pipe 7 to enter the next stage for treatment, when more viscous materials filtered by the fine filter screen 31 are blocked, namely the amount of the exhaust smoke discharged from the exhaust pipe 7 is obviously reduced, the gas control valve 33 is closed, the air in the movable breathing bag 32 can not transfer heat to the outside, the movable breathing bag 32 begins to expand, the middle of the movable breathing bag 32 is protruded, the square tube 312 gradually contacts and gradually slides into the butt square hole 314, the butt square hole 314 drives the square tube 312 to rotate, the square tube 312 and the square rod 313 rotate simultaneously to drive the movable breathing bag 32 to twist up and down, the air in the twisted movable breathing bag 32 is rapidly extruded, the upper surface of the movable breathing bag 32 rapidly contacts the fine filter screen 31 and extrudes the fine filter screen 31 upwards, when the aperture of the fine filter screen 31 is increased, the fine filter screen 31 and the arc cleaning brush 35 rotate and rub the fine filter screen 31 by external-internal contraction, the substances on the fine filter screen 31 are rubbed together, the twisted bottom of the movable breathing bag 32 rises when twisted to a certain degree and the square tube 312 is lifted out from the butt square hole 314, then the movable breathing bag 32 is reset rapidly under the action of the self elasticity and the reset elastic sheet 311, and then the movable breathing bag is separated from the fine filter screen 31 which is distorted synchronously rapidly, the fine filter screen 31 shakes to drop the blocky kneaded materials on the movable breathing bag 32, most materials enter the inner part of the stirring tank body 1 again through the through hole 37 during shaking to be stirred, the reset movable breathing bag 32 repeats the work again, and after the cleaning is finished, the gas control valve 33 is opened again.

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, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an asphalt mixing plant production line pollutant processing apparatus, is including being used for carrying on the agitator tank jar body (1) of pitch stirring processing usefulness, be used for supporting agitator tank jar supporting leg (2) of body (1) and be used for carrying out filtration treatment's automatically cleaning filtering mechanism (3) to the emission that pitch production produced, its characterized in that: supporting leg (2) fixed mounting is in the bottom of the agitator tank body (1), the bottom fixed mounting of the agitator tank body (1) has driving motor (4), the output shaft of driving motor (4) is used for stirring the stirring pivot (5) of pitch through shaft coupling fixedly connected with, the one end of stirring pivot (5) runs through and extends to the inside of the agitator tank body (1), be provided with the bearing on the agitator tank body (1), the surface of stirring pivot (5) and the inner circle fixed connection of bearing, the fixed surface of pivot is connected with stirring spiral roller (6) that are used for mixxing the bituminous mixture, automatically cleaning filtering mechanism (3) set up the inside at the agitator tank body (1).

2. The asphalt mixing plant production line pollutant treating device according to claim 1, characterized in that: automatically cleaning filtering mechanism (3) are including being used for carrying out filterable fine and close filter screen (31) in advance and being used for clean activity breathing bag (32) of fine and close filter screen (31) to exhaust gas, fine and close filter screen (31) fixed connection is on the inner wall of the agitator tank body (1), the top of the agitator tank body (1) is the arc form, fine and close filter screen (31) set up the below at the agitator tank body (1) arc top, fine and close filter screen (31) set up directly over activity breathing bag (32).

3. The asphalt mixing plant production line pollutant treating device according to claim 2, characterized in that: activity respiration bag (32) fixed connection is on the inner wall of the agitator tank jar body (1), the cross-sectional view of activity respiration bag (32) is oval shape, activity respiration bag (32) are located stirring pivot (5) directly over, and the upper surface of activity respiration bag (32) is provided with annular cleaning brush (34) that a plurality of circles are used for cleaning fine and close filter screen (31), the fixed surface of annular cleaning brush (34) is connected with arc cleaning brush (35), the material of annular cleaning brush (34) and the material of arc cleaning brush (35) are high zinc silk, the surface of activity respiration bag (32) is provided with a plurality of circles annular groove (36), each the inside of annular groove (36) all is provided with a plurality of perforating hole (37) that are used for the ventilation, and perforating hole (37) the crisscross distribution of the inside of two adjacent annular groove (36), the lower surface of activity respiration bag (32) has been seted up and has been had a plurality of perforating hole (37) one-to-one And the inner wall of each through hole (37) is fixedly connected with a hollow rubber pipe (39), and the other end of each hollow rubber pipe (39) is fixedly connected with one end of each through hole (38).

4. The asphalt mixing plant production line pollutant treating device according to claim 3, characterized in that: a plurality of arc-shaped elastic grooves (310) are formed in the lower surface of the movable breathing bag (32), the arc-shaped elastic grooves (310) are distributed circumferentially at the bottom of the movable breathing bag (32), and each reset elastic sheet (311) is fixedly connected to the inner wall of each arc-shaped elastic groove (310).

5. The asphalt mixing plant production line pollutant treating device according to claim 4, characterized in that: the bottom fixedly connected with square pipe (312) of activity breathing bag (32), the inner wall sliding connection of square pipe (312) has square pole (313), square pole (313) are kept away from the one end of square pipe (312) and the interior roof fixed connection of activity breathing bag (32), square pipe (312) are located the positive position in activity breathing bag (32) bottom, butt joint quad slit (314) has been seted up at the top of stirring pivot (5), the length of butt joint quad slit (314) is than the length of venturi tube (312) is long, the width of the square pipe of the aspect ratio (312) of butt joint quad slit (314) is wide.

6. The asphalt mixing plant production line pollutant treating device according to claim 5, characterized in that: fixedly connected with a plurality of damping spring (315) between each hollow rubber tube (39) of activity breathing bag (32) inside, the bottom of activity breathing bag (32) has cup jointed gas control pipe (316), the outside that runs through and extend to the agitator tank jar body (1) of one end of gas control pipe (316), the one end fixed mounting of gas control pipe (316) has gas control valve (33).

7. The asphalt mixing plant production line pollutant treating device according to claim 6, characterized in that: blast pipe (7) have been cup jointed at the top of the agitator tank body (1), the surface of the agitator tank body (1) articulates there is feeding closing plate (8), the fixed surface of feeding closing plate (8) installs padlock (9), the fixed surface of feeding closing plate (8) is connected with the fixed surface of the agitator tank body (1) through padlock (9), discharge gate (10) have been seted up on the surface of the agitator tank body (1), the inner wall of discharge gate (10) articulates there is ejection of compact closing plate (11).