CN211340292U - Asphalt mixture stirring equipment - Google Patents

Asphalt mixture stirring equipment Download PDF

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Publication number
CN211340292U
CN211340292U CN201921846995.8U CN201921846995U CN211340292U CN 211340292 U CN211340292 U CN 211340292U CN 201921846995 U CN201921846995 U CN 201921846995U CN 211340292 U CN211340292 U CN 211340292U
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China
Prior art keywords
asphalt
unit
communicated
conveying
powder
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CN201921846995.8U
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Chinese (zh)
Inventor
要艳红
申斌
王悠青
陈宣化
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Shaanxi Dagang Zhulu Environmental Protection Equipment Co ltd
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Shaanxi Dagang Zhulu Environmental Protection Equipment Co ltd
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Priority to CN201921605496X priority
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Abstract

The utility model belongs to asphalt mixing equipment, in particular to asphalt mixture mixing equipment, which solves the problems that in the prior art, the asphalt mixing equipment is not added with reclaimed materials, the new aggregate is sieved after being heated, and the metering is carried out after the feeding and heating, which causes energy waste, and the emission of redundant materials causes dust pollution; the asphalt stirring equipment for adding the reclaimed materials has the technical problems of complex process and high cost for adding the reclaimed materials, and comprises a new aggregate conveying unit, a first screening unit, a heating roller, an asphalt conveying and metering unit, a powder conveying and metering unit and a stirring unit; the fresh aggregate conveying unit is communicated with an inlet of the first screening unit through a first conveyor, an outlet of the first screening unit is communicated with an inlet of the heating roller, and an outlet of the heating roller, the asphalt conveying and metering unit and the powder conveying and metering unit are communicated with an inlet of the stirring unit.

Description

Asphalt mixture stirring equipment
Technical Field
The utility model belongs to pitch agitated vessel, concretely relates to bituminous mixture agitated vessel.
Background
The existing asphalt stirring equipment without adding reclaimed materials is used for mixing new aggregate with asphalt and powder after conveying, heating, screening and metering, and the specific process flow is as follows: the new aggregate placed in the new aggregate batching hopper enters a stirring pot after passing through a feeder, a conveyor, a heating roller, a lifter, a vibrating screen, a hot aggregate bin and an aggregate weighing hopper; the asphalt in the asphalt tank enters a stirring pot through an asphalt weighing hopper; powder placed in the powder tank enters the stirring pot through a powder weighing hopper; and uniformly stirring all the materials in the stirring pot to obtain the asphalt mixture for road paving.
The existing asphalt stirring equipment capable of being added with reclaimed materials is used for conveying, heating, screening and metering new aggregate, and is mixed with asphalt and powder after conveying, heating and metering the reclaimed materials, wherein the specific process flow is as follows: the reclaimed materials in the reclaimed material batching hopper enter the stirring pot after passing through the feeder, the conveyor, the reclaimed material heating roller, the storage bin and the reclaimed material weighing hopper; the technological processes of the new aggregate, the powder and the asphalt are different from the technological process of asphalt stirring equipment added with the reclaimed materials; and uniformly stirring all the materials in the stirring pot to obtain the asphalt mixture for road paving.
In the equipment without adding the regenerated material, the new aggregate is heated and then screened, and the screened waste flash is heated, so that energy waste is caused; the feeding of the new aggregate is not measured, and the new aggregate is measured according to the amount after being heated, so that the heated material is more than the actual production amount, and the problems of energy waste, dust pollution caused by the emission of redundant materials and the like can be caused. The equipment for adding the reclaimed materials has complex process and high cost for adding the reclaimed materials. And the ageing degree of the regenerated material is serious when the conventional heating roller is used for heating, and a large amount of smoke can be generated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that in the prior art, the asphalt stirring equipment without adding reclaimed materials is adopted, new aggregate is sieved after being heated, and the amount is measured after feeding and heating, which causes energy waste, and dust pollution is caused by discharging redundant materials; the asphalt mixing equipment for adding the reclaimed materials has the technical problems of complex process and high cost for adding the reclaimed materials, and provides the asphalt mixture mixing equipment.
In order to achieve the above object, the utility model provides a following technical scheme:
the asphalt mixture stirring equipment is characterized by comprising a new aggregate conveying unit, a first screening unit, a heating roller, an asphalt conveying and metering unit, a powder conveying and metering unit and a stirring unit; the fresh aggregate conveying unit is communicated with an inlet of the first screening unit through a first conveyor, an outlet of the first screening unit is communicated with an inlet of the heating roller, and an outlet of the heating roller, the asphalt conveying and metering unit and the powder conveying and metering unit are communicated with an inlet of the stirring unit.
Further, the device also comprises a reclaimed material conveying unit; the reclaimed material conveying unit is communicated with an inlet of the heating roller;
or the reclaimed material conveying unit is communicated with the inlet of the first screening unit through the first conveyor.
Further, the device also comprises a dust removal device; the dust removal device is provided with a flue gas inlet and a dust removal discharge hole, and the dust removal discharge hole is communicated with the stirring unit;
the heating roller comprises a feeding smoke box, a heating cylinder body, a discharge chute and a hot air cylinder which are sequentially communicated along the feeding direction; the feeding smoke box is provided with a heating roller feeding hole and a smoke outlet;
the tail end of the hot air cylinder along the feeding direction is provided with a burner, and the flame of the burner is positioned in the hot air cylinder; the lower part of the discharge chute is provided with a discharge hole of the heating roller;
or the hot air cylinder is provided with an air inlet, the flue gas outlet is communicated with the air inlet through a fan, the tail end of the hot air cylinder along the feeding direction is provided with a burner, and the flame of the burner is positioned in the hot air cylinder; the lower part of the discharge chute is provided with a discharge hole of the heating roller;
the heating roller discharge port is communicated with the stirring unit, the outlet of the first screening unit is communicated with the heating roller feed port, and the flue gas inlet is communicated with the flue gas outlet.
Further, the stirring unit is an intermittent stirring pot or a continuous stirring pot;
if the batch type stirring pot is adopted, a storage hopper and a first weighing hopper are sequentially arranged between the discharge port of the heating roller and the batch type stirring pot; the powder conveying and metering unit comprises a powder tank and a powder weighing hopper, the powder tank is communicated with the powder weighing hopper through a conveyor or a rotary valve, and the powder weighing hopper is communicated with the intermittent stirring pot; the asphalt conveying and metering unit comprises an asphalt tank and an asphalt weighing hopper, the asphalt tank and the asphalt weighing hopper are communicated through an asphalt conveying pipeline, an asphalt pump is arranged on the asphalt conveying pipeline, and the asphalt weighing hopper is communicated with the intermittent stirring pot;
if the stirring kettle is a continuous stirring kettle, the powder conveying and metering unit comprises a powder tank and a powder metering valve, and the powder metering valve is arranged between the powder tank and the continuous stirring kettle; the asphalt conveying and metering unit comprises an asphalt tank and an asphalt metering pump, and the asphalt metering pump is arranged between the asphalt tank and the continuous stirring pot.
Furthermore, the new aggregate conveying unit comprises a new aggregate collecting machine and at least one new aggregate batcher, wherein the new aggregate batcher is arranged below the new aggregate batching machine; the new aggregate machine is arranged below the new aggregate feeder;
the reclaimed material conveying unit comprises at least one reclaimed material batcher, and a reclaimed material feeder is arranged below the reclaimed material conveying unit;
if the reclaimed material conveying unit is communicated with the inlet of the heating roller, the method comprises the following steps:
a reclaimed material collecting machine is arranged below the reclaimed material feeding machine and is communicated with the feeding hole of the heating roller, and a metering device is arranged on the reclaimed material feeding machine or the reclaimed material collecting machine;
or the reclaimed material feeder and the outlet of the first screening unit are communicated with the feed inlet of the heating roller through the same feeding device, and the reclaimed material feeder or the first screening aggregate machine is provided with a metering device.
If the reclaimed material conveying unit is communicated with the inlet of the first screening unit through the first conveyor, then:
the reclaimed material batcher and the reclaimed material feeder are positioned above the new aggregate collecting machine, and the reclaimed material collecting machine (503) is communicated with the inlet of the first conveyor (1);
or the regenerated material feeder (502) and the outlet of the new aggregate conveying unit (4) are communicated with the inlet of the first conveyor (1) through the same feeding device.
Further, the device also comprises a dust removal device; the dust removal device is provided with a flue gas inlet and a dust removal discharge hole, and the dust removal discharge hole is communicated with the stirring unit;
the heating roller comprises a feeding smoke box and a heating cylinder body which are communicated along the feeding direction; the tail end of the heating cylinder is provided with a burner, and the flame of the burner is positioned in the heating cylinder; the rear part of the heating cylinder body is provided with a discharge chute, and the lower part of the discharge chute is provided with a discharge hole of the heating cylinder; the feeding smoke box is provided with a heating roller feeding hole and a smoke outlet;
the heating roller discharge port is communicated with the stirring unit, the outlets of all levels of the first screening unit are communicated with the heating roller feed port, and the flue gas inlet is communicated with the flue gas outlet.
Further, the stirring unit is an intermittent stirring pot or a continuous stirring pot;
if the batch type stirring pot is adopted, a storage hopper and a first weighing hopper are sequentially arranged between the discharge port of the heating roller and the batch type stirring pot; the powder conveying and metering unit comprises a powder tank and a powder weighing hopper, the powder tank is communicated with the powder weighing hopper through a conveyor or a rotary valve, and the powder weighing hopper is communicated with the intermittent stirring pot; the asphalt conveying and metering unit comprises an asphalt tank and an asphalt weighing hopper, the asphalt tank and the asphalt weighing hopper are communicated through an asphalt conveying pipeline, an asphalt pump is arranged on the asphalt conveying pipeline, and the asphalt weighing hopper is communicated with the intermittent stirring pot;
if the stirring kettle is a continuous stirring kettle, the powder conveying and metering unit comprises a powder tank and a powder metering valve, and the powder metering valve is arranged between the powder tank and the continuous stirring kettle; the asphalt conveying and metering unit comprises an asphalt tank and an asphalt metering pump, and the asphalt metering pump is arranged between the asphalt tank and the continuous stirring pot.
Furthermore, the new aggregate conveying unit comprises a new aggregate collecting machine and at least one new aggregate batcher, wherein the new aggregate batcher is arranged below the new aggregate batching machine; the new aggregate collecting machine is arranged below the new aggregate feeder.
Further, the first screening unit comprises a first vibrating screen and a first screening and collecting machine; the inlet of first shale shaker and the export intercommunication of first conveyer, the exit linkage of first shale shaker has first storage silo and first waste bin, and the lower part of first storage silo is equipped with first screening batcher, and first screening batcher below is equipped with first screening and gathers materials machine, and first screening and gathers materials machine and heating roller feed inlet intercommunication, first screening batcher or first screening and gather materials machine and be equipped with metering device.
An asphalt mixture stirring device is characterized by comprising a new aggregate conveying unit, a reclaimed material conveying unit, a heating roller, a dust removal device, a second screening unit, an asphalt conveying and metering unit, a powder conveying and metering unit and a stirring unit;
the new aggregate conveying unit and the regenerated aggregate conveying unit are both communicated with the inlet of the heating roller, and the outlet of the heating roller is communicated with the inlet of the second screening unit through a fourth conveyor;
the stirring unit is an intermittent stirring pot, a second weighing hopper is arranged between the second screening unit and the intermittent stirring pot, the powder conveying and metering unit comprises a powder tank and a powder weighing hopper, the powder tank is communicated with the powder weighing hopper through a conveyor or a rotary valve, and the powder weighing hopper is communicated with the intermittent stirring pot; the asphalt conveying and metering unit comprises an asphalt tank and an asphalt weighing hopper, the asphalt tank and the asphalt weighing hopper are communicated through an asphalt conveying pipeline, an asphalt pump is arranged on the asphalt conveying pipeline, and the asphalt weighing hopper is communicated with the intermittent stirring pot;
and the dust removal device is provided with a flue gas inlet and a dust removal discharge hole, the dust removal discharge hole is communicated with an inlet of the fourth conveyor, and the flue gas inlet is communicated with a flue gas outlet formed in the heating roller.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an asphalt mixture agitated vessel, new aggregate conveying unit carry the new aggregate to first screening unit through first conveyer and sieve, measure after the screening, carry the new aggregate to the heating cylinder after the measurement, through heating cylinder mixing heating back, carry the powder and the pitch that the metering unit transported respectively with the powder and carry the powder and pitch that the metering unit transported respectively spare after stirring in the stirring unit. The new aggregate is screened and then heated, and the waste overflow is not dried and heated, so that energy can be saved; the materials are accurately measured according to grading after being screened, accurate quantitative supply is realized before drying and heating, the materials can be dried and heated by using the materials, and the problems of energy waste, pollution caused by emission and the like caused by unused materials after drying and heating are avoided.
2. The utility model discloses can also carry the reworked material simultaneously, the reworked material heats with new aggregate together. The heating of new aggregate and reclaimed materials only uses one heating roller, so that the reclaimed material adding process is simple, the whole equipment structure and the manufacture are simple, the cost is low, the use failure rate is low, and the installed power is low.
3. The utility model discloses a heating cylinder divide into the heating cylinder that is used for new aggregate to carry to and be applicable to the heating cylinder of reclaimed materials. When the reclaimed materials are conveyed, the heating roller adopts a hot air circulating type heating roller, and is heated by adopting counter-current hot air, so that the heating efficiency is high, the asphalt smoke is less, and the aging of the reclaimed materials is greatly reduced; the hot air circulation can also not be arranged, and because the dust removal device draws air from the heating roller, smoke can be formed in the heating roller to flow, and the effect of the self smoke circulation can also be achieved. The utility model discloses a dust collector can collect the flue gas in the production process, handles back up to standard, and gas portion can discharge, and solid large granule part gets into the stirring unit, and the tiny particle part is retrieved according to the condition appropriately.
4. The stirring unit of the utility model can be in various modes, and if the stirring unit is an intermittent stirring pot, a corresponding weighing hopper or a storage hopper is configured; if the stirring pan is a continuous stirring pan, a corresponding metering valve or metering pump is configured, so that accurate feeding can be realized by matching with a stirring unit.
5. The utility model discloses a new aggregate conveying unit sets up a plurality of new aggregate batchers, and the reclaimed material conveying unit sets up a plurality of reclaimed material batchers, and the concrete quantity can be adjusted according to the asphalt mixture demand, or only use its middle distributor; the feeder and the material collector can be used for quantitative conveying of corresponding materials, operation is convenient, and conveying amount is accurate. The reclaimed material collecting machine of the reclaimed material conveying unit can be independently arranged, and can also share the same collecting machine with the first screening collecting machine. In addition, the feeding machine and the material collecting machine adopt the belt weigher, the belt weigher is used for carrying and weighing at the same time, continuous and non-intermittent metering can be achieved, the action of the weigher can be started or stopped when the belt conveyor is started or stopped, the stability is good, and the weighing is accurate.
6. The utility model discloses a first screening unit can sieve new aggregate, and the first sieve batcher or the first sieve of first screening unit divide the material machine to be the belt weigher form, can weigh single grain footpath material after the screening.
7. The utility model discloses an asphalt mixture agitated vessel, new aggregate conveying unit and reclaimed material conveying unit all deliver to the heating cylinder heating back with corresponding material, carry to the second shale shaker back through the fourth conveyer again, carry the even standby of stirring behind the common entering stirring unit of material that metering unit and pitch were carried to the metering unit and were carried to the powder, the second shale shaker of arranging the stirring unit top in makes this equipment be applicable to the transport stirring of the single grain footpath material that the material is not the gradation requirement, the unsatisfied gradation requirement's material can also be collected to the second waste bin.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fifth embodiment of the present invention;
fig. 6 is another schematic structural diagram of a fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a sixth embodiment of the present invention;
fig. 8 is another schematic structural diagram of a sixth embodiment of the present invention;
fig. 9 is a schematic layout of a reclaimed material conveying unit according to a third embodiment to a fifth embodiment of the present invention;
fig. 10 is another schematic layout of the reclaimed material conveying unit according to the third to fifth embodiments of the present invention;
fig. 11 is a schematic structural diagram of a first sieving unit according to one to five embodiments of the present invention;
fig. 12 is a schematic structural view of a heating roller according to a first embodiment and a second embodiment of the present invention;
fig. 13 is a schematic structural view of a heating roller according to third to sixth embodiments of the present invention.
Wherein, 1-a first conveyor, 2-a heating roller, 201-a heating roller feeding hole, 202-a heating roller discharging hole, 203-a heating cylinder body, 204-a discharging groove, 205-a hot air cylinder, 206-a burner, 207-a feeding smoke box, 208-a smoke outlet, 209-an air inlet, 3-a stirring unit, 4-a new aggregate conveying unit, 401-a new aggregate batcher, 402-a new aggregate batcher, 403-a new aggregate collecting machine, 5-a reclaimed aggregate conveying unit, 501-a reclaimed aggregate batcher, 502-a reclaimed aggregate batcher, 503-a reclaimed aggregate collecting machine, 6-a powder conveying and metering unit, 601-a powder weighing hopper, 602-a powder tank, 603-a powder metering valve, 7-an asphalt conveying and metering unit, 701-asphalt weighing hopper, 702-asphalt tank, 703-asphalt metering pump, 8-storage hopper, 9-first screening unit, 901-first screening feeder, 902-first vibrating screen, 903-first screening material distributor, 904-first storage hopper, 905-first waste bin, 10-first weighing hopper, 11-dust collector, 1101-flue gas inlet, 1102-dust removing material outlet, 12-second conveyor, 13-second screening unit, 1301-second vibrating screen, 1302-second storage bin, 1303-material door, 14-third conveyor, 15-fourth conveyor, 16-fan, 17-second weighing hopper and 18-second waste bin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are not limitations of the present invention.
Example one
Referring to fig. 1, the asphalt mixture stirring equipment comprises a new aggregate conveying unit 4, a first screening unit 9, a heating roller 2, an asphalt conveying and metering unit 7, a powder conveying and metering unit 6 and a stirring unit 3; the new aggregate conveying unit 4 is communicated with the inlet of the first screening unit 9 through the first conveyor 1, the outlet of the first screening unit 9 is communicated with the inlet of the heating roller 2, and the outlet of the heating roller 2, the asphalt conveying and metering unit 7 and the powder conveying and metering unit 6 are communicated with the inlet of the stirring unit 3.
Also comprises a dust removing device 11; the dedusting device 11 is provided with a flue gas inlet 1101 and a dedusting discharge port 1102, and the dedusting discharge port 1102 is communicated with the stirring unit 3. As shown in fig. 10, the heating drum 2 includes a feeding smoke box 207 and a heating drum 203 which are communicated in a feeding direction; the end of the heating cylinder 203 is provided with a burner 206, and the flame of the burner 206 is positioned in the heating cylinder 203; a discharge chute 204 is arranged at the rear part of the heating cylinder 203, and a heating cylinder discharge port 202 is arranged at the lower part of the discharge chute 204; the feeding smoke box 207 is provided with a heating roller feeding port 201 and a smoke outlet 208; the heating drum discharge port 202 is communicated with the stirring unit 3, the outlets of all levels of the first screening unit 9 are communicated with the heating drum feed port 201, and the flue gas inlet 1101 is communicated with the flue gas outlet 208. Wherein the stirring unit 3 is an intermittent stirring pot, and a storage hopper 8 and a first weighing hopper 10 are sequentially arranged between the discharge port 202 of the heating roller and the intermittent stirring pot; the powder conveying and metering unit 6 comprises a powder tank 602 and a powder weighing hopper 601, wherein the powder tank 602 is communicated with the powder weighing hopper 601 through a conveyor or a rotary valve, and the powder weighing hopper 601 is communicated with an intermittent stirring pot; the asphalt conveying and metering unit 7 comprises an asphalt tank 702 and an asphalt weighing hopper 701, the asphalt tank 702 is communicated with the asphalt weighing hopper 701 through an asphalt conveying pipeline, an asphalt pump is arranged on the asphalt conveying pipeline, and the asphalt weighing hopper 701 is communicated with an intermittent stirring pot. Since only fresh aggregate is fed, the heating drum 2 may be configured as described above, and a heated air circulation type heating drum, and other types of heating drums may be used.
The new aggregate conveying unit 4 comprises a new aggregate collecting machine 403 and at least one new aggregate batcher 401, wherein a new aggregate feeder 402 is arranged below the new aggregate batching machine 401; the new aggregate collector 403 is disposed below the new aggregate feeder 402. As in fig. 9, the first screening unit 9 comprises a first vibrating screen 902 and a first screening and sorting machine 903; the inlet of first shale shaker 902 communicates with the export of first conveyer 1, and the exit linkage of first shale shaker 902 has first storage silo 904 and first waste bin 907, and the lower part of first storage silo 904 is equipped with first screening batcher 901, and first screening batcher 901 below is equipped with first screening batcher 903. The first screening and distributing machine 903 is communicated with the heating roller feeding hole 201, and new aggregate after screening can be directly conveyed to the heating roller 2 through the first screening and distributing machine 903, and can also be conveyed through other conveying devices, such as a lifter 12. First screening batcher 901 or first screening and distributing machine 903 is equipped with metering device, is convenient for measure new aggregate. The first vibratory screen 902 may also be connected to a first waste bin for collecting screened waste flash.
Example two
As shown in fig. 2, the stirring unit 3 is a continuous stirring pan, the powder delivery metering unit 6 comprises a powder tank 602 and a powder metering valve 603, and the powder metering valve 603 is arranged between the powder tank 602 and the continuous stirring pan; the asphalt conveying and metering unit 7 comprises an asphalt tank 702 and an asphalt metering pump 703, and the asphalt metering pump 703 is arranged between the asphalt tank 702 and the continuous stirring pot. The connection relationship of other parts is the same as that of the first embodiment.
EXAMPLE III
As shown in fig. 3, according to the first embodiment, the recycling material conveying unit 5 is further included; the reclaimed material conveying unit 5 is communicated with the inlet of the heating roller 2.
As the reclaimed materials need to be conveyed, as shown in fig. 11, the heating roller 2 uses a hot air circulation type heating roller, and the heating roller 2 comprises a feeding smoke box 207, a heating roller body 203, a discharge chute 204 and a hot air cylinder 205 which are sequentially communicated along the feeding direction; the feeding smoke box 207 is provided with a heating roller feeding port 201 and a smoke outlet 208;
as a scheme, an air inlet 209 is formed in the hot air cylinder 205, the flue gas outlet 208 is communicated with the air inlet 209 through the fan 16, a burner 206 is arranged at the tail end of the hot air cylinder 205 along the feeding direction, and the flame of the burner 206 is positioned in the hot air cylinder 205; the lower part of the discharge chute 204 is provided with a heating roller discharge port 202. The hot air circulating type heating roller adopts counter-current hot air for heating, the temperature of tail gas is low, and the heating efficiency is high; the fan 16 leads part of the flue gas back to the hot air cylinder 205 for hot air circulation, and then flows in the direction of the heating cylinder 203, the hot air temperature is lower, the material is heated and then falls out through the discharge port 202 of the heating cylinder at the lower part of the discharge chute 204, so that the aging degree of the reclaimed materials is greatly reduced, the produced asphalt flue gas is greatly reduced, and the adding proportion of the reclaimed materials can reach 90 percent to the maximum extent.
In the heating process, the dust removing device 11 is induced by the flue gas outlet 208, and the flue gas in the heating drum 2 enters the dust removing device 11 through the flue gas outlet 208, so that the flue gas in the heating drum 2 continuously flows and can also play a role in hot air circulation. Therefore, another scheme can be adopted, the end of the hot air cylinder 205 along the feeding direction is provided with a burner 206, and the flame of the burner 206 is positioned in the hot air cylinder 205; the lower part of the discharge chute 204 is provided with a heating roller discharge port 202.
The stirring unit 3 adopts an intermittent stirring pot, and a storage hopper 8 and a first weighing hopper 10 are sequentially arranged between the heating roller discharge port 202 and the intermittent stirring pot.
The new aggregate conveying unit 4 comprises a new aggregate collecting machine 403 and at least one new aggregate batcher 401, wherein a new aggregate feeder 402 is arranged below the new aggregate batching machine; the new aggregate collecting machine 403 is arranged below the new aggregate feeding machine 402; the reclaimed material conveying unit 5 comprises at least one reclaimed material batcher 501 provided with a reclaimed material batcher 502 below;
the outlet of the regenerated material feeder 502 and the outlet of the first screening unit 9 are communicated with the heating roller feed port 201 through the same feeding device, the regenerated material feeder 502 and the first screening unit 9 share the first screening material distributor 903 of the first screening unit 9, and the regenerated material feeder 502 or the first screening material distributor 903 is provided with a metering device.
Example four
Referring to fig. 4, the batch type mixing kettle is replaced by a continuous type mixing kettle according to the third embodiment, and the other connection relations are the same as those of the third embodiment.
EXAMPLE five
As shown in fig. 5, according to the third embodiment, a reclaimed material collector 503 is provided below the reclaimed material feeder 502 of the reclaimed material conveying unit 5, the reclaimed material collector 503 conveys the reclaimed material to the heating roller 2, and the first screening collector 903 of the first screening unit 9 conveys the screened new aggregate to the heating roller 2. The reclaimed material collecting machine 503 and the first sieve collecting machine 903 can directly convey the corresponding materials to the heating drum 2, and can also convey the materials to the heating drum 2 through the second conveyor 12. Other connection relations are the same as those of the embodiment. As shown in fig. 6, in other embodiments of the present invention, the stirring unit 3 can also be a continuous stirring pan.
In the third to fifth embodiments of the present invention, the reclaimed material conveying unit 5 can be further disposed in front of the first conveyor 1, the reclaimed material conveying unit 5 is communicated with the inlet of the first screening unit 9 through the first conveyor 1, the reclaimed material feeder 502 and the reclaimed material batcher 501 are located above the reclaimed aggregate collector 403, and the reclaimed and reclaimed materials share the same aggregate collector; the reclaimed material in the reclaimed material batcher 501 is sent to the reclaimed material collector 503 through the reclaimed material feeder 502, and then the reclaimed material is sent to the inlet of the first screening unit 9 through the first conveyor 1 by the reclaimed material collector 503.
EXAMPLE six
Referring to fig. 7 and 8, an asphalt mixture mixing plant comprises a new aggregate conveying unit 4, a reclaimed material conveying unit 5, a heating roller 2, a dust removing device 11, a second screening unit 13, an asphalt conveying and metering unit 7, a powder conveying and metering unit 6 and a mixing unit 3;
the fresh aggregate conveying unit 4 and the reclaimed material conveying unit 5 are both communicated with the inlet of the heating drum 2, and the fresh aggregate conveying unit 4 and the reclaimed material conveying unit 5 may share one material collector as shown in fig. 7 or may be provided with one material collector as shown in fig. 8. In addition, the new aggregate and the reclaimed aggregate can be directly conveyed to the heating roller 2 through the aggregate machine, and the materials can also be conveyed to the heating roller 2 through the third conveyor 14. The outlet of the heating drum 2 is in communication with the inlet of the second screening unit 13 through a fourth conveyor 15;
the stirring unit 3 is an intermittent stirring pot, a second weighing hopper 17 is arranged between the second screening unit 13 and the intermittent stirring pot, the powder conveying and metering unit 6 comprises a powder tank 602 and a powder weighing hopper 601, the powder tank 602 is communicated with the powder weighing hopper 601 through a conveyer or a rotary valve, and the powder weighing hopper 601 is communicated with the intermittent stirring pot; the asphalt conveying and metering unit 7 comprises an asphalt tank 702 and an asphalt weighing hopper 701, the asphalt tank 702 and the asphalt weighing hopper 701 are communicated through an asphalt conveying pipeline, an asphalt pump is arranged on the asphalt conveying pipeline, and the asphalt weighing hopper 701 is communicated with an intermittent stirring pot;
the dust removing device 11 is provided with a flue gas inlet 1101 and a dust removing discharge hole 1102, the dust removing discharge hole 1102 is communicated with an inlet of the fourth conveyor 15, and the flue gas inlet 1101 is communicated with a flue gas outlet 208 formed in the heating roller 2.
The second screening unit 13 includes a second vibrating screen 1301, the heating drum discharge port 202 and the dust removal discharge port 1102 are communicated with an inlet of the second vibrating screen 1301 through a fourth conveyor 15, a second storage bin 1302 is arranged at the lower portion of the second vibrating screen 1301 and used for storing screened materials, a material door 1303 is arranged at the bottom of the second storage bin 1302, when the materials in the second storage bin 1302 need to be placed into the second weighing hopper 17, the material door is opened, and when the materials do not need to be discharged, the material door 1303 is closed. The second vibrating screen 1301 may be an apparatus having a screen cleaning device, or may be separately attached to the screen cleaning device.
The heating roller 2 of the utility model is obliquely arranged along the feeding direction, and the inclination angle can be set within the range of 3-5 degrees.
The feeding machines and the collecting machines can adopt a common conveying belt form, the structure can be similar, and other feeding devices can also be used.
Dust collector can retrieve the flue gas in the heating cylinder 2, discharges after dust removal processing is up to standard, and the solid material large granule part of collecting after the dust removal is carried to heating cylinder discharge gate 202, and the appropriate recovery processing of the solid material small granule part of collecting is according to the condition.
Adopt the embodiment of the utility model provides a first to the five structure of embodiment can realize cold screening to the material, and the material after having avoided the stoving heating does not use the energy waste that causes and discharges the pollution scheduling problem that arouses. The embodiment of the utility model provides a six bituminous mixture agitated vessel that provide also can make reworked material and new aggregate only heat once, has simplified process, improves work efficiency.
The above is only the embodiment of the present invention, and is not the limitation of the protection scope of the present invention, all the equivalent structure changes made in the contents of the specification and the drawings, or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. The utility model provides an asphalt mixture agitated vessel which characterized in that: comprises a new aggregate conveying unit (4), a first screening unit (9), a heating roller (2), an asphalt conveying and metering unit (7), a powder conveying and metering unit (6) and a stirring unit (3); the fresh aggregate conveying unit (4) is communicated with an inlet of the first screening unit (9) through the first conveyor (1), an outlet of the first screening unit (9) is communicated with an inlet of the heating roller (2), and an outlet of the heating roller (2), the asphalt conveying and metering unit (7) and the powder conveying and metering unit (6) are communicated with an inlet of the stirring unit (3).
2. The asphalt mixing plant of claim 1, wherein: also comprises a reclaimed material conveying unit (5); the reclaimed material conveying unit (5) is communicated with an inlet of the heating roller (2);
or the reclaimed material conveying unit (5) is communicated with the inlet of the first screening unit (9) through the first conveyor (1).
3. The asphalt mixing plant according to claim 2, characterized in that: also comprises a dust removing device (11); the dust removal device (11) is provided with a flue gas inlet (1101) and a dust removal discharge hole (1102), and the dust removal discharge hole (1102) is communicated with the stirring unit (3);
the heating roller (2) comprises a feeding smoke box (207), a heating roller body (203), a discharge chute (204) and a hot air cylinder (205) which are sequentially communicated along the feeding direction; a heating roller feeding hole (201) and a smoke outlet (208) are formed in the feeding smoke box (207);
the tail end of the hot air cylinder (205) along the feeding direction is provided with a burner (206), and the flame of the burner (206) is positioned in the hot air cylinder (205); a heating roller discharge hole (202) is formed in the lower part of the discharge chute (204);
or the hot air cylinder (205) is provided with an air inlet (209), the flue gas outlet (208) is communicated with the air inlet (209) through the fan (16), the tail end of the hot air cylinder (205) along the feeding direction is provided with a burner (206), and the flame of the burner (206) is positioned in the hot air cylinder (205); a heating roller discharge hole (202) is formed in the lower part of the discharge chute (204);
the heating roller discharge hole (202) is communicated with the stirring unit (3), the outlet of the first screening unit (9) is communicated with the heating roller feed hole (201), and the flue gas inlet (1101) is communicated with the flue gas outlet (208).
4. The asphalt mixing plant according to claim 3, characterized in that: the stirring unit (3) is an intermittent stirring pot or a continuous stirring pot;
if the batch type stirring pot is adopted, a storage hopper (8) and a first weighing hopper (10) are sequentially arranged between the discharge port (202) of the heating roller and the batch type stirring pot; the powder conveying and metering unit (6) comprises a powder tank (602) and a powder weighing hopper (601), the powder tank (602) is communicated with the powder weighing hopper (601) through a conveyor or a rotary valve, and the powder weighing hopper (601) is communicated with an intermittent stirring pot; the asphalt conveying and metering unit (7) comprises an asphalt tank (702) and an asphalt weighing hopper (701), the asphalt tank (702) is communicated with the asphalt weighing hopper (701) through an asphalt conveying pipeline, an asphalt pump is arranged on the asphalt conveying pipeline, and the asphalt weighing hopper (701) is communicated with the intermittent stirring pot;
if the stirring pan is a continuous stirring pan, the powder conveying and metering unit (6) comprises a powder tank (602) and a powder metering valve (603), and the powder metering valve (603) is arranged between the powder tank (602) and the continuous stirring pan; the asphalt conveying and metering unit (7) comprises an asphalt tank (702) and an asphalt metering pump (703), wherein the asphalt metering pump (703) is arranged between the asphalt tank (702) and the continuous stirring pot.
5. The asphalt mixing plant according to claim 4, characterized in that:
the new aggregate conveying unit (4) comprises a new aggregate collecting machine (403) and at least one new aggregate batcher (401) with a new aggregate feeder (402) arranged below; the new aggregate collecting machine (403) is arranged below the new aggregate feeding machine (402);
the reclaimed material conveying unit (5) comprises at least one reclaimed material batcher (501) with a reclaimed material feeder (502) arranged below;
if the reclaimed material conveying unit (5) is communicated with the inlet of the heating roller (2), then:
a reclaimed material collecting machine (503) is arranged below the reclaimed material feeder (502), the reclaimed material collecting machine (503) is communicated with the feeding hole (201) of the heating roller, and a metering device is arranged on the reclaimed material feeder (502) or the reclaimed material collecting machine (503);
or the regenerated material feeder (502) and the outlet of the first screening unit (9) are communicated with the heating roller feeding hole (201) through the same feeding device, and the regenerated material feeder (502) or the first screening and distributing machine (903) is provided with a metering device;
if the reclaimed material conveying unit (5) is communicated with the inlet of the first screening unit (9) through the first conveyor (1), then:
the regenerated material batcher (501) and the regenerated material feeder (502) are positioned above the new aggregate collector (403), and the regenerated material collector (503) is communicated with the inlet of the first conveyor (1);
or the regenerated material feeder (502) and the outlet of the new aggregate conveying unit (4) are communicated with the inlet of the first conveyor (1) through the same feeding device.
6. The asphalt mixing plant of claim 1, wherein: also comprises a dust removing device (11); the dust removal device (11) is provided with a flue gas inlet (1101) and a dust removal discharge hole (1102), and the dust removal discharge hole (1102) is communicated with the stirring unit (3);
the heating roller (2) comprises a feeding smoke box (207) and a heating roller body (203) which are communicated along the feeding direction; a burner (206) is arranged at the tail end of the heating cylinder (203), and the flame of the burner (206) is positioned in the heating cylinder (203); a discharge chute (204) is arranged at the rear part of the heating cylinder body (203), and a discharge port (202) of the heating cylinder is arranged at the lower part of the discharge chute (204); a heating roller feeding hole (201) and a smoke outlet (208) are formed in the feeding smoke box (207);
the heating roller discharge port (202) is communicated with the stirring unit (3), outlets of all levels of the first screening unit (9) are communicated with the heating roller feed port (201), and the flue gas inlet (1101) is communicated with the flue gas outlet (208).
7. The asphalt mixing plant according to claim 6, characterized in that: the stirring unit (3) is an intermittent stirring pot or a continuous stirring pot;
if the batch type stirring pot is adopted, a storage hopper (8) and a first weighing hopper (10) are sequentially arranged between the discharge port (202) of the heating roller and the batch type stirring pot; the powder conveying and metering unit (6) comprises a powder tank (602) and a powder weighing hopper (601), the powder tank (602) is communicated with the powder weighing hopper (601) through a conveyor or a rotary valve, and the powder weighing hopper (601) is communicated with an intermittent stirring pot; the asphalt conveying and metering unit (7) comprises an asphalt tank (702) and an asphalt weighing hopper (701), the asphalt tank (702) is communicated with the asphalt weighing hopper (701) through an asphalt conveying pipeline, an asphalt pump is arranged on the asphalt conveying pipeline, and the asphalt weighing hopper (701) is communicated with the intermittent stirring pot;
if the stirring pan is a continuous stirring pan, the powder conveying and metering unit (6) comprises a powder tank (602) and a powder metering valve (603), and the powder metering valve (603) is arranged between the powder tank (602) and the continuous stirring pan; the asphalt conveying and metering unit (7) comprises an asphalt tank (702) and an asphalt metering pump (703), wherein the asphalt metering pump (703) is arranged between the asphalt tank (702) and the continuous stirring pot.
8. The asphalt mixing plant of claim 7, wherein: the new aggregate conveying unit (4) comprises a new aggregate collecting machine (403) and at least one new aggregate batcher (401) with a new aggregate feeder (402) arranged below; the new aggregate collecting machine (403) is arranged below the new aggregate feeding machine (402).
9. An asphalt mixing plant as defined in claim 5 or 8, wherein: the first screening unit (9) comprises a first vibrating screen (902) and a first screening and collecting machine (903); the entry of first shale shaker (902) and the export intercommunication of first conveyer (1), the exit linkage of first shale shaker (902) has first storage silo (904) and first waste bin (907), the lower part of first storage silo (904) is equipped with first screening batcher (901), first screening batcher (901) below is equipped with first screening batcher (903), first screening batcher (903) and heating cylinder feed inlet (201) intercommunication, first screening batcher (901) or first screening batcher (903) are equipped with metering device.
10. The utility model provides an asphalt mixture agitated vessel which characterized in that: comprises a new aggregate conveying unit (4), a reclaimed material conveying unit (5), a heating roller (2), a dust removal device (11), a second screening unit (13), an asphalt conveying and metering unit (7), a powder conveying and metering unit (6) and a stirring unit (3);
the fresh aggregate conveying unit (4) and the reclaimed material conveying unit (5) are both communicated with an inlet of the heating roller (2), and an outlet of the heating roller (2) is communicated with an inlet of the second screening unit (13) through a fourth conveyor (15);
the stirring unit (3) is an intermittent stirring pot, a second weighing hopper (17) is arranged between the second screening unit (13) and the intermittent stirring pot, the powder conveying and metering unit (6) comprises a powder tank (602) and a powder weighing hopper (601), the powder tank (602) is communicated with the powder weighing hopper (601) through a conveyor or a rotary valve, and the powder weighing hopper (601) is communicated with the intermittent stirring pot; the asphalt conveying and metering unit (7) comprises an asphalt tank (702) and an asphalt weighing hopper (701), the asphalt tank (702) is communicated with the asphalt weighing hopper (701) through an asphalt conveying pipeline, an asphalt pump is arranged on the asphalt conveying pipeline, and the asphalt weighing hopper (701) is communicated with the intermittent stirring pot;
the dust removal device (11) is provided with a flue gas inlet (1101) and a dust removal discharge hole (1102), the dust removal discharge hole (1102) is communicated with an inlet of the fourth conveyor (15), and the flue gas inlet (1101) is communicated with a flue gas outlet (208) formed in the heating roller (2).
CN201921846995.8U 2019-09-25 2019-10-30 Asphalt mixture stirring equipment Active CN211340292U (en)

Priority Applications (2)

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CN201921605496 2019-09-25
CN201921605496X 2019-09-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112030670A (en) * 2020-09-07 2020-12-04 福建省铁拓机械股份有限公司 Equipment and process for preparing asphalt mixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112030670A (en) * 2020-09-07 2020-12-04 福建省铁拓机械股份有限公司 Equipment and process for preparing asphalt mixture

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