CN212792348U - A gas cleaning device for pitch mix station - Google Patents

Abstract

The utility model discloses a flue gas purification device for pitch mixing station, pitch mixing station includes finished product storehouse, pitch jar and flash pond, the below in finished product storehouse is provided with the lane encapsulation, and in the lane encapsulation was gone into deeply to the drain hole in finished product storehouse, two sides that the lane encapsulation is relative were provided with the rolling slats door, were provided with the flue gas in the lane encapsulation and collect the mechanism, and the lane encapsulation is provided with flue gas purification mechanism outward, and the flue gas is collected the mechanism and is passed through the pipe connection flue gas purification mechanism. The utility model seals the lane by arranging the lane package outside the lane, and avoids asphalt smoke from overflowing into the atmosphere when finished product bin emptying and vehicle cover tarpaulin are carried out; meanwhile, the asphalt flue gas is collected through a flue gas collecting mechanism, and then is conveyed to a flue gas purifying mechanism through a pipeline for treatment, and the flue gas reaching the standard is treated and then is discharged into the atmosphere; the utility model discloses simple structure, simple to operate, energy-concerving and environment-protective has guaranteed that staff's is healthy, reduces the harm to the environment.

Description

A gas cleaning device for pitch mix station

Technical Field

The utility model belongs to the technical field of the pitch production technique and specifically relates to a gas cleaning device for pitch mixing station.

Background

The asphalt mixing plant, also called asphalt concrete mixing plant, is a complete equipment for producing asphalt concrete in batches, can produce asphalt mixture, modified asphalt mixture and color asphalt mixture, and is necessary equipment for building expressways, grade highways, municipal roads, airports and ports. The asphalt stirring equipment mainly comprises a cold distribution system, a drying system, a combustion system, a hot material lifting system, a vibrating screen, a hot material storage bin, a weighing and stirring system, an asphalt supply system, a powder supply system, a finished product bin, a control system and the like. The cold distribution system comprises a cold distribution hopper and a conveying belt, wherein the conveying belt comprises a horizontal annular belt and an inclined belt. The working process comprises the following steps: the forklift conveys the aggregates accumulated on site to a cold distribution hopper, and the aggregates in the cold distribution hopper are conveyed to a drying cylinder through a conveying belt; the aggregate is low in temperature and poor in adhesion degree with liquid asphalt at normal temperature, so that the aggregate is conveyed to a drying cylinder and heated to 180 ℃, the heated aggregate is conveyed to a vibrating screen through a lifting machine, and the vibrating screen screens qualified aggregate and conveys the qualified aggregate to a hot material storage bin; conveying unqualified aggregate to a flash pool for temporary storage through a pipeline; and then, stirring the aggregate, the liquid asphalt, the mineral powder and the auxiliary materials by a weighing and stirring system, conveying the stirred materials to a finished product bin for storage, and finally conveying the finished product asphalt to a construction site by a transport vehicle for laying.

The lane below the traditional finished product bin is exposed, when a transport vehicle reaches the lane below the discharge port of the finished product bin, finished asphalt is conveyed into the transport vehicle through the discharge port, and a large amount of asphalt smoke is generated in the discharging process and the tarpaulin covering process of the vehicle; meanwhile, liquid asphalt in the asphalt tank needs to be heated and then enters the stirring system, and asphalt smoke in the asphalt tank overflows to the atmosphere through the air holes in the heating process. Both of these conditions produce significant amounts of asphalt fumes. After smelling by human, the asphalt smoke contains various harmful substances, and the discomfort such as dizziness, fullness in the head, headache, chest distress, hypodynamia, nausea or cough, palpitation, tinnitus and the like can appear, even when the asphalt smoke is operated in burning sun; meanwhile, asphalt smoke can pollute the environment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve the excessive pitch flue gas of traditional asphalt mixing station and cause the technical problem of discomfort and pitch flue gas polluted environment to the human body and provide a gas cleaning device for pitch mixing station.

The utility model adopts the technical proposal that: the utility model provides a flue gas purification device for pitch mix station, pitch mix station includes finished product storehouse, pitch jar and flash pond, and pitch tank deck portion is provided with the bleeder vent, the below in finished product storehouse is provided with the lane encapsulation, and in the lane encapsulation was gone into deeply to the drain hole in finished product storehouse, two sides that the lane encapsulation is relative were provided with the rolling slats door, were provided with the flue gas in the lane encapsulation and collect the mechanism, and the lane encapsulation is provided with flue gas purification mechanism outward, and the flue gas is collected the mechanism and is passed through pipe connection flue gas purification mechanism. The utility model seals the lane by arranging the lane package outside the lane, and avoids asphalt smoke from overflowing into the atmosphere when finished product bin emptying and vehicle cover tarpaulin are carried out; simultaneously, the asphalt smoke is collected through the smoke collecting mechanism, then the asphalt smoke is conveyed to the smoke purifying mechanism through a pipeline to be treated, and the treated smoke reaching the standard is discharged into the atmosphere. The utility model discloses simple structure, simple to operate, energy-concerving and environment-protective has guaranteed that staff's is healthy, reduces the harm to the environment.

Further, a sensor is disposed on the lane encapsulation for monitoring the transport vehicle. When the sensor monitors that the transport vehicle approaches, the control system controls the rolling shutter door to open; when the situation that the vehicle drives away is monitored, the rolling shutter door is controlled to be closed through the control system, manual operation is not needed, and the intelligent degree is high.

Further, a camera is arranged in the lane encapsulation. The working condition in the lane can be monitored in real time, the safety production is ensured, and the normal operation of the discharging is also ensured.

Further, the lane encapsulation is steel frame construction, and the last metal corrugated sheet that has set up of frame construction, and the cost of manufacture is low, and stability is good.

Furthermore, the rolling door is an electric quick rolling door, is quickly lifted, and can effectively avoid the overflow of asphalt smoke in lane encapsulation.

Further, the flue gas purification mechanism comprises a washing tower, a plasma purification mechanism and a photo-oxidation catalytic purification mechanism which are connected in sequence. The washing tower can remove large-particle smoke dust in the asphalt smoke and reduce the temperature of the waste gas, and stimulating gases such as chlorine sulfide, sulfur dioxide and the like in the asphalt smoke are neutralized and washed with the medicament in the tower so as to ensure the subsequent treatment effect; the plasma purification mechanism adopts a low-temperature plasma corona discharge technology to degrade harmful waste gas and degrade and oxidize harmful gas and peculiar smell; the photo-oxygen catalytic purification mechanism adopts high-strength C-waveband ultraviolet rays to crack and oxidize molecular chains of the waste gas, thoroughly destroy molecular groups of the waste gas and decompose and oxidize high-concentration pollutants into low-molecular harmless substances.

Further, the air holes are connected with a flue gas purification mechanism through an asphalt flue gas pipeline. The traditional air holes are naked, and the adhesion degree of the liquid asphalt and the aggregate at normal temperature is poor, so that a heating device is arranged in the asphalt tank to heat the liquid asphalt, and asphalt smoke overflows to the atmosphere from the air holes in the heating process. The utility model discloses an arrange the pipeline on the bleeder vent, pipeline intercommunication flue gas purification mechanism carries out purification treatment to the pitch flue gas, has guaranteed that staff's is healthy, reduces the harm to the environment.

Further, an overflow bin is arranged on the outer side of the overflow pool. The overflow pond is used for keeping in unqualified aggregate that comes through the shale shaker transport, and the aggregate is limestone, can produce a large amount of raise dusts carrying the overflow pond, and the raise dusts spreads influence environment in to the air, can cause harm to environment and staff's health. Consequently the utility model discloses a set up the flash storehouse outside the flash pond, seal the flash pond, effectively avoided the raise dust to spill influence environment and health in the atmosphere.

Further, a dust removal mechanism is arranged in the lane package below the discharge hole. Can produce a large amount of raise dusts when brushing pot and hot pot, raise dusts diffusion influences the environment to the air in, can cause harm to environment and staff's health. Consequently the utility model discloses a dust removal mechanism handles the raise dust, has effectively avoided the raise dust to overflow influence environment and health in the atmosphere.

Further, the dust removal mechanism comprises a fan arranged below the discharge hole and a bag-type dust remover arranged outside the lane package, and the fan is connected with the bag-type dust remover through a pipeline. The fan extracts the raise dust near the discharge hole and conveys the raise dust to the bag-type dust collector to be treated, thereby effectively avoiding the raise dust from overflowing into the atmosphere to influence the environment and the human health.

The utility model has the advantages that:

1. the utility model seals the lane by arranging the lane package outside the lane, and avoids asphalt smoke from overflowing into the atmosphere when finished product bin emptying and vehicle cover tarpaulin are carried out; meanwhile, the asphalt smoke is collected through the smoke collecting mechanism, and then is conveyed to the smoke purifying mechanism through the pipeline to be processed, so that the health of workers is guaranteed, and the harm to the environment is reduced.

2. The utility model discloses an arrange pitch flue gas pipeline on the bleeder vent, carry the gas cleaning mechanism with the excessive pitch flue gas in the asphalt tank and handle, guaranteed that staff's is healthy, reduce the harm to the environment.

3. The utility model discloses a set up the flash storehouse outside the flash pond, seal the flash pond, effectively avoided the raise dust to spill influence environment and health in the atmosphere.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic structural view of the flue gas cleaning mechanism.

FIG. 4 is a schematic view of asphalt flue gas collection.

Labeled as:

1. a finished product warehouse; 2. an asphalt tank; 3. lane encapsulation; 4. a roller shutter door; 5. an overflow bin; 6. a bag-type dust collector; 7. an asphalt flue gas pipeline; 8. a flue gas purification mechanism; 9. a flue gas collection mechanism; 31. a washing tower; 32. a plasma purification mechanism; 33. light oxygen catalytic purification mechanism.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the utility model discloses a flue gas purification device for pitch mix station, pitch mix station includes finished product storehouse 1, pitch jar 2 and flash pond, and pitch tank deck portion is provided with the bleeder vent, the below in finished product storehouse 1 is provided with lane encapsulation 3, and in lane encapsulation 3 was gone into deeply to the drain hole in finished product storehouse, two sides that the lane encapsulation is relative were provided with rolling slats door 4, were provided with flue gas collection mechanism 9 in the lane encapsulation, and lane encapsulation is provided with flue gas purification mechanism 8 outward, and flue gas collection mechanism 9 passes through pipe connection flue gas purification mechanism 8. The flue gas collecting mechanism is a fan, the utility model seals the lane by arranging a lane package outside the lane, and prevents asphalt flue gas from overflowing into the atmosphere when finished product bin emptying and vehicle cover tarpaulin are carried out; simultaneously, the asphalt smoke is collected through the smoke collecting mechanism, then the asphalt smoke is conveyed to the smoke purifying mechanism through a pipeline to be treated, and the treated smoke reaching the standard is discharged into the atmosphere. The utility model discloses simple structure, simple to operate, energy-concerving and environment-protective has guaranteed that staff's is healthy, reduces the harm to the environment.

The present embodiment is provided with sensors (not shown in the figures) on the lane encapsulation for monitoring the transport vehicle. When the sensor monitors that the transport vehicle approaches, the control system controls the rolling shutter door to open; when the situation that the vehicle drives away is monitored, the rolling shutter door is controlled to be closed through the control system, manual operation is not needed, and the intelligent degree is high.

The camera (not shown in the figure) is arranged in the lane packaging, so that the working condition in the lane can be monitored in real time, the safety production is ensured, and the normal operation of discharging is also ensured.

The lane encapsulation of this embodiment is steel frame construction, and the last metal corrugated sheet of having set up of frame construction, and the cost of manufacture is low, and stability is good.

The rolling slats door 4 of this embodiment is electronic quick rolling slats door, and it is rapid to go up and down, can effectively avoid the interior pitch flue gas of lane encapsulation excessive.

Referring to fig. 2 and 3, the flue gas purification mechanism of the present embodiment includes a washing tower 31, a plasma purification mechanism 32, and a photo-oxidation catalytic purification mechanism 33, which are connected in sequence. The washing tower can remove large-particle smoke dust in the asphalt smoke and reduce the temperature of the waste gas, and stimulating gases such as chlorine sulfide, sulfur dioxide and the like in the asphalt smoke are neutralized and washed with the medicament in the tower so as to ensure the subsequent treatment effect; the plasma purification mechanism adopts a low-temperature plasma corona discharge technology to degrade harmful waste gas and degrade and oxidize harmful gas and peculiar smell; the photo-oxygen catalytic purification mechanism adopts high-strength C-waveband ultraviolet rays to crack and oxidize molecular chains of the waste gas, thoroughly destroy molecular groups of the waste gas and decompose and oxidize high-concentration pollutants into low-molecular harmless substances.

Referring to fig. 4, the vent hole of the present embodiment is connected to a flue gas purification mechanism 8 through an asphalt flue gas pipeline 7, the conventional vent hole is exposed, and the adhesion degree between the liquid asphalt and the aggregate at normal temperature is poor, so that a heating device is arranged in the asphalt tank to heat the liquid asphalt, and asphalt flue gas overflows from the vent hole to the atmosphere during the heating process. The utility model discloses an arrange the pipeline on the bleeder vent, pipeline intercommunication flue gas purification mechanism carries out purification treatment to the pitch flue gas, has guaranteed that staff's is healthy, reduces the harm to the environment.

Referring to fig. 1 and 2, the embodiment is provided with a flash bin 5 at the outside of the flash tank. The overflow pond is used for keeping in unqualified aggregate that comes through the shale shaker transport, and the aggregate is limestone, can produce a large amount of raise dusts carrying the overflow pond, and the raise dusts spreads influence environment in to the air, can cause harm to environment and staff's health. Consequently the utility model discloses a set up the flash storehouse outside the flash pond, seal the flash pond, effectively avoided the raise dust to spill influence environment and health in the atmosphere.

Referring to fig. 2, in the present embodiment, a dust removing mechanism is disposed in the lane package below the discharge port; the dust removing mechanism comprises a fan (not shown in the figure) arranged below the discharging hole and a bag-type dust remover 6 arranged outside the lane package, and the fan is connected with the bag-type dust remover 6 through a pipeline. Can produce a large amount of raise dusts when brushing pot and hot pot, raise dusts diffusion influences the environment to the air in, can cause harm to environment and staff's health. Consequently the utility model discloses a dust removal mechanism handles the raise dust, has effectively avoided the raise dust to overflow influence environment and health in the atmosphere.

The bag-type dust collector of this embodiment adopts MC-420 type pulse bag collector, MC-420 type pulse bag collector is on the basis of MC-I type, the novel high-efficient pulse bag collector of modified, it has kept the collection dust of MC-I type dust collector efficient, it is big to handle the amount of wind, stable performance, convenient operation, the filter bag is longe-lived, maintenance work load advantage such as little, and from structural and pulse valve on reform transform, solved and laid in the open and compressed air source pressure low problem. The working principle of the bag-type dust collector is as follows: when dust-containing gas enters the dust remover from the air inlet, the dust-containing gas firstly enters the dust hopper, meanwhile, the speed of the gas flow is slowed down, coarse particle dust in the gas directly settles to the dust hopper due to the inertia effect to play a role of pre-collecting dust, the gas flow is folded and upwards passes through the filter bag internally provided with the metal framework, the dust is trapped on the outer surface of the filter bag, and the purified gas enters the cleaning chamber at the upper part of the filter bag chamber and is collected to the air outlet to be discharged. In the process of purifying dust-containing gas by passing through a filter bag, more and more dust is deposited on the filter bag along with the increase of time, the resistance of the filter bag is increased, so that the air volume to be treated is gradually reduced, in order to normally work, the resistance is controlled within a certain range (120 plus 150 mm water column), the filter bag needs to be cleaned, a pulse controller is used for sequentially triggering control valves to open pulse valves during cleaning, compressed air in an air bag is sprayed into the corresponding filter bags through holes of a spray pipe through venturi tubes, the filter bags are instantly and rapidly expanded, so that the dust deposited on the surfaces of the filter bags falls off, and the filter bags are regenerated. The dust falls into the dust hopper and is discharged out of the machine body through the dust discharging system. Therefore, dust accumulated on the filter bag is periodically and pulse-sprayed to remove ash, purified gas normally passes through the filter bag, and the normal work of a dust removal system is ensured.

The rapid rolling door of the embodiment is a high-performance C102 dual-core rapid door control system, and the control modes of a mechanical limit switch, an absolute value encoder and an incremental encoder can be selected. The 380V/2.2KW-220V/1.5KW uniform installation size has the functions of double-door interlocking, automatic door opening, air curtain machine control, door ascending in place, door descending in place and manual non-interlocking/automatic interlocking.

The scrubber of this example was a fume scrubber made of DN240 glass fiber reinforced plastic from seiko corporation. The scrubbing tower removes large particle smoke from the asphalt flue gas and lowers the temperature of the exhaust gas. The stimulating gases such as sulfureted chlorine, sulfur dioxide and the like in the asphalt smoke are neutralized and washed with the medicament in the tower so as to ensure the subsequent treatment effect. Make the pitch flue gas evenly pass through purifier, ensure the flue gas purification efficiency maximize, utilize the principle of mechanical collision, gravity subside simultaneously, make the large granule oil droplet that forms on the flow equalizing plate slide in the oil trap.

The plasma purification mechanism of the present embodiment employs a 30000 plasma flue gas purification device of seiko corporation. The equipment is made of industrial stainless steel, is resistant to corrosion of alkaline solution, has long service life, and is energy-saving and efficient. The plasma contains a large amount of high-energy electrons, positive and negative ions, excited particles and post-type free radicals with strong oxidizing property, the active particles are combined with partial exhaust gas molecules in a collision way, and simultaneously, a large amount of active free radicals such as OH, HO and O with strong oxidizing property can be generated to generate harmless products through chemical reaction with harmful gas molecules. The principle is as follows: the low-temperature plasma corona discharge technology degrades harmful waste gas. The discharge is generated between two electrodes, and discharges air under the action of pulse high voltage electricity, so that the air is activated, and plasma is generated. A large number of active free radicals generated by the method can directly open molecular bonds among various gas molecules in the harmful waste gas to decompose the harmful gas into simplest small molecules, so that the harmful gas and peculiar smell are degraded and oxidized, and the final product is harmless to human bodies and the environment. The photo-oxidation catalytic purification mechanism of the embodiment adopts 30000UV photo-oxidation catalytic purification equipment of Shicheng company. 304 stainless steel is adopted, polytetrafluoroethylene materials are adopted for insulation and heat insulation protection as a whole, and long-acting performance is excellent; the consumable element adopts a drawer structure, and the door body structure is integrally configured, so that the management and maintenance are convenient. The method can efficiently remove main pollutants such as Volatile Organic Compounds (VOC), inorganic matters, hydrogen sulfide, ammonia gas, thiols and the like and various malodorous pollutants, has high purification and deodorization efficiency of over 99 percent, and has purification and deodorization effects greatly exceeding the national emission standard of malodorous pollutants. The principle is as follows: the molecular chain of the waste gas is cracked and oxidized by adopting high-strength C-waveband ultraviolet rays, so that the molecular group of the waste gas is thoroughly destroyed, and high-concentration pollutants are decomposed and oxidized into low-molecular harmless substances. Organic matter after the treatment of the gas molecules of the super-strong oxidation organism is decomposed into water, carbon dioxide and low-molecular odorless and harmless compounds, and light ozone can be smelled in 5 meters of an air outlet, and the ozone is quickly dissolved in the air and converted into oxygen.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a gas cleaning device for pitch mix station, pitch mix station includes finished product storehouse (1), pitch jar (2) and flash pond, and pitch tank deck portion is provided with the bleeder vent, a serial communication port, the below in finished product storehouse (1) is provided with lane encapsulation (3), and in lane encapsulation (3) were gone into deeply to the drain hole in finished product storehouse, two sides that the lane encapsulation is relative were provided with rolling slats door (4), were provided with flue gas collection mechanism (9) in the lane encapsulation, were provided with gas cleaning mechanism (8) outward in the lane encapsulation, and gas cleaning mechanism (8) are passed through pipe connection gas cleaning mechanism (8) in the flue gas collection mechanism (9).

2. The flue gas cleaning device for the asphalt mixing station as recited in claim 1, wherein a sensor is disposed on the lane encapsulation.

3. The flue gas cleaning device for the asphalt mixing station as recited in claim 1, wherein a camera is arranged in the lane encapsulation.

4. The flue gas cleaning device for the asphalt mixing station is characterized in that the driveway is packaged into a steel frame structure, and metal corrugated plates are lapped on the frame structure.

5. A flue gas cleaning device for asphalt mixing stations according to claim 1, characterized in that the roller shutter (4) is an electric quick roller shutter.

6. The flue gas purification device for the asphalt mixing station is characterized by comprising a washing tower (31), a plasma purification mechanism (32) and a photo-oxidation catalytic purification mechanism (33) which are connected in sequence.

7. The flue gas cleaning device for the asphalt mixing station as recited in claim 1, wherein the air vent is connected with the flue gas cleaning mechanism (8) through an asphalt flue gas pipe (7).

8. The flue gas cleaning device for asphalt mixing station according to claim 1, characterized in that an overflow bin (5) is arranged outside the overflow tank.

9. The flue gas purification device for the asphalt mixing station as defined in claim 1, wherein a dust removing mechanism is arranged in the lane enclosure below the discharge port.

10. The flue gas purification device for the asphalt mixing station as defined in claim 9, wherein the dust removing mechanism comprises a fan arranged below the discharge port and a bag-type dust remover (6) arranged outside the lane encapsulation, and the fan is connected with the bag-type dust remover (6) through a pipeline.

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