CN111549619A - Safe operation system and method for hot plant recycling equipment for asphalt mixture - Google Patents
Safe operation system and method for hot plant recycling equipment for asphalt mixture Download PDFInfo
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- CN111549619A CN111549619A CN202010521963.1A CN202010521963A CN111549619A CN 111549619 A CN111549619 A CN 111549619A CN 202010521963 A CN202010521963 A CN 202010521963A CN 111549619 A CN111549619 A CN 111549619A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 26
- 239000000203 mixture Substances 0.000 title claims abstract description 25
- 238000004064 recycling Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 157
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims description 59
- 239000002912 waste gas Substances 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 20
- 239000002699 waste material Substances 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 230000008929 regeneration Effects 0.000 claims description 10
- 238000011069 regeneration method Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
- E01C19/1063—Controlling the operations
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention relates to the technical field of asphalt recycling, in particular to a safe operation system and a safe operation method for plant-mixed hot recycling equipment for asphalt mixtures. The detection device and the controller are added to detect the running condition of the equipment in real time, so that the fire extinguishing operation can be automatically executed when a fire occurs, the response speed is high, and the safe and stable running of the equipment is ensured; the mode that puts out a fire operation adoption adds into a large amount of cold reworked materials in equipment goes on, and cold reworked material can carry out inside direct cooling and put out the naked light, compares in traditional outside spray cooling, and the cooling is more direct with putting out a fire, and the effect is better, and the operation of putting out a fire actually switches for the operating condition to each part of equipment itself, and consequently it is few to accomplish the hindrance of putting out a fire or getting back to normal operating condition again, restarts that operating speed is fast the degree of difficulty and hangs down, and production to the enterprise influences for a short time.
Description
Technical Field
The invention relates to the technical field of asphalt recycling, in particular to a safe operation system and a safe operation method for plant-mixed hot recycling equipment for asphalt mixtures.
Background
As more and more expressways of China enter the overhaul stage, a large amount of waste asphalt mixture is generated, and the waste asphalt mixture can be recycled in a large amount, so that considerable economic benefit and social benefit can be brought. The heating and drying are a necessary link for recycling the waste asphalt mixture. The hot recycling equipment of bituminous mixture plantmix is a high-temperature production equipment, the reclaimed material contains bituminous components, the equipment ignition condition may occur due to misoperation, equipment failure and other reasons, for example, the material combustion condition occurs in the reclaimed material drying roller, the reclaimed material drying roller is relatively closed equipment, so that the internal ignition condition is not easy to be visually perceived, when the reclaimed material drying roller emits thick smoke, the ignition condition is developed to a certain extent after a period of time, and the fire extinguishing work is carried out subsequently, so that certain hysteresis exists; normally, external fire extinguishment is carried out by adopting equipment such as a fire extinguisher and the like, while ignition in the roller cannot be directly extinguished by adopting the fire extinguisher, and the equipment is generally stopped and is applied to extinguishment in modes such as external water spraying cooling and the like; after this kind of mode is put out a fire, it is longer and comparatively difficult to need consuming time to restart equipment and get back to normal operating condition again, and is great to the production progress influence.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a safe operation system and a safe operation method for hot plant recycling equipment for asphalt mixtures.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a safe operation system of hot plant recycling equipment for asphalt mixtures comprises a cold storage bin, a recycled material drying roller and a stirring cylinder; a cold material valve is arranged at the outlet of the cold material bin, and the cold material bin feeds cold reclaimed materials towards the reclaimed material drying roller; a burner is arranged at one end of the reclaimed material drying roller, and the reclaimed material drying roller heats and dries cold reclaimed materials and then sends the cold reclaimed materials into the stirring cylinder; the stirring cylinder comprises a finished product valve and a waste valve; the method is characterized in that: still include temperature-detecting device, controller, temperature-detecting device locate in the reclaimed material drying roller and with controller signal connection, the controller respectively with cold burden valve, combustor, finished product material valve, waste material valve signal connection, the controller carries out operating condition control to cold burden valve, combustor, finished product material valve, waste material valve.
Further, still wrap metering device, fueling injection equipment, flame detector, metering device locates between reclaimed material drying roller and the agitator tank to the reclaimed material that reclaimed material drying roller sent into the agitator tank is measured, fueling injection equipment corresponds the metering device position, in order to reduce the sizing towards metering device department oil spout, flame detector corresponds the metering device position, in order to detect the operating condition information of metering device department and with controller signal connection, controller and fueling injection equipment signal connection and steerable its operating condition.
Further, still including disconnected material detection device, be equipped with vibrating device on the cold burden storehouse, disconnected material detection device corresponds cold burden valve position to detect cold burden storehouse ejection of compact state, disconnected material detection device and controller signal connection, controller and vibrating device signal connection and steerable its operating condition.
Further, still include exhaust treatment device, reworked material drying roller one end is equipped with the exhaust outlet, and exhaust outlet is equipped with the waste gas valve, exhaust treatment device includes exhaust gas pipeline, fan, and exhaust gas pipeline entrance point reworked material drying roller's exhaust outlet is connected, exit end and being connected to combustor and native equipment, and on the exhaust gas pipeline was located to the fan, controller and waste gas valve, fan signal connection and steerable its operating condition.
A safe operation method of hot plant recycling equipment for asphalt mixtures is characterized by comprising the following steps: the method comprises the following steps:
step one, a temperature detection device detects a temperature value in a reclaimed material drying roller in real time and transmits the temperature value to a controller in real time;
step two, preset values corresponding to the working state of the reclaimed material drying roller are stored in the controller, wherein the normal working state in the roller corresponds to a normal value in the preset values, and the ignition state in the roller corresponds to an upper limit value in the preset values; the controller compares the temperature value transmitted by the temperature detection device with a preset value;
step three, if the temperature value transmitted by the temperature detection device is increased to the upper limit value, the controller automatically executes the fire extinguishing operation: closing the burner, fully opening the cold material valve, closing the finished product valve of the stirring cylinder and opening the waste material valve of the stirring cylinder; make cold feed bin send into a large amount of cold reworked materials toward regeneration drying roller, cold reworked material is through reworked material drying roller, carries out rapid cooling and puts out to the department of catching fire to regeneration drying roller, and the reworked material is discharged from the waste material valve behind the reworked material drying roller and is abandoned the nothing.
Further, a critical state exists between the normal working state and the ignition state in the drum, the critical state corresponds to an alarm value in the preset values, wherein the normal value is smaller than the alarm value and smaller than the upper limit value, and if the temperature value transmitted by the temperature detection device is increased to the alarm value, the controller executes an alarm operation: and (5) responding by using an audible and visual alarm.
Furthermore, a discharge port of the reclaimed material drying roller is weighed by the metering device and then enters the stirring cylinder, an oil injection device is arranged at the metering device and injects oil towards the metering device so as to reduce the sticky material, a flame detector detects the working state information at the metering device in real time and transmits the information to the controller, if the flame detector detects that the metering device catches fire, the controller automatically executes the fire extinguishing operation, and the oil injection device is closed during the fire extinguishing operation.
Further, when the controller executes the automatic fire extinguishing operation, the burner state is locked to the starting prohibition state until the burner state is unlocked when the temperature value transmitted by the temperature detection device is reduced to the normal value.
Further, when a cold material valve of the cold material bin is in an open state, the material breakage detection device detects the discharging state of the cold material valve in real time and transmits the state information to the controller in real time, when the material breakage detection device detects a material breakage signal, the material breakage state information is sent out and transmitted to the controller, the controller executes vibration blockage removal operation, the vibration device drives the cold material bin to vibrate to remove blockage, and the controller does not receive the material breakage state information any more; the controller begins to carry out vibration and arranges the stifled operation and carry out the timing operation simultaneously, when timing to first settlement time, the controller still receives disconnected material state information, then the controller carries out alarm operation: the audible and visual alarm responds; when timing to a second set time, the controller still receives the material cutting state information, and then the controller executes the fire reducing operation: the working power of the combustor is reduced; wherein the first set time is less than the second set time.
Further, when the controller carries out the automatic fire extinguishing operation, the controller closes waste gas valve, fan to prevent waste gas at the internal circulation of reclaimed material drying roller, prevent simultaneously that naked light from introducing native equipment.
From the above description of the invention, compared with the prior art, the system and the method for safely operating the plant-mixed hot recycling equipment for the asphalt mixture can detect the operation condition of the equipment in real time by adding the detection device and the controller, can give an alarm in time when an abnormality occurs, can automatically perform fire extinguishing operation when a fire occurs, have high response speed, and ensure the safe and stable operation of the equipment; the mode that puts out a fire operation adoption adds into a large amount of cold reworked materials in equipment goes on, the cold reworked material can carry out inside direct cooling and put out the naked light, compare in the outside cooling that sprays of tradition, it is more direct to cool down and put out a fire, the effect is better, the in-process of putting out a fire simultaneously, reworked material drying drum does not stall, can avoid the inside sizing problem that the drum stall leads to, the operation of putting out a fire is actually for switching over the operating condition of each part to equipment itself, consequently, it is few to accomplish the hindrance of putting out a fire or getting back to normal operating condition again, it is low to restart the fast degree of difficulty of operating speed.
Drawings
FIG. 1 is a schematic diagram of a safe operation system of a hot plant recycling device for asphalt mixture.
The labels in the figure correspond to the following: 1. the device comprises a cold material bin, 11 parts of a cold material valve, 12 parts of a vibration device, 2 parts of a regenerated material drying roller, 21 parts of a combustor, 22 parts of a waste gas outlet, 23 parts of a waste gas valve, 3 parts of a stirring cylinder, 31 parts of a finished product material valve, 32 parts of a waste material valve, 4 parts of a temperature detection device, 5 parts of a metering device, 6 parts of an oil injection device, 7 parts of a flame detector, 8 parts of a material breakage detection device, 9 parts of a waste gas treatment device, 91 parts of a waste gas pipeline and 92 parts of a fan.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1, the safe operation system of the plant-mixing hot recycling equipment for the asphalt mixture comprises a cold storage bin 1, a recycled material drying roller 2, a mixing cylinder 3, a temperature detection device 4, a metering device 5, an oil injection device 6, a flame detector 7, a material breakage detection device 8, a waste gas treatment device 9 and a controller.
A cold material valve 11 is arranged at the outlet of the cold material bin 1, the cold material bin 1 feeds cold reclaimed materials towards a reclaimed material drying roller, a vibration device 12 is arranged on the cold material bin 1, a material breakage detection device 8 corresponds to the position of the cold material valve 11 so as to detect the discharging state of the cold material bin 1, and the material breakage detection device 8 is in signal connection with a controller;
a burner 21 is arranged at one end of the reclaimed material drying roller 2, and the reclaimed material drying roller 2 heats and dries cold reclaimed materials and then sends the cold reclaimed materials into the stirring cylinder 3; the temperature detection device 4 is arranged in the reclaimed material drying roller 2 and is in signal connection with the controller; the metering device 5 is arranged between the reclaimed material drying roller 2 and the stirring cylinder 3 so as to meter and weigh reclaimed materials fed into the stirring cylinder 2 by the reclaimed material drying roller 2, the oil injection device 6 corresponds to the position of the metering device 5 so as to inject oil towards the metering device 5 to reduce sticky materials, and the flame detector 7 corresponds to the position of the metering device 5 so as to detect working state information at the metering device 5 and is in signal connection with the controller; one end of the reclaimed material drying roller 2 is provided with a waste gas outlet 22, the waste gas outlet 22 is provided with a waste gas valve 23, the waste gas treatment device 9 comprises a waste gas pipeline 91 and a fan 92, the waste gas outlet 22 of the reclaimed material drying roller 2 at the inlet end of the waste gas pipeline 91 is connected, the outlet end of the reclaimed material drying roller is connected to a burner 21 and native equipment, and the fan 91 is arranged on the waste gas pipeline 91;
the stirring cylinder 3 comprises a finished product valve 31 and a waste valve 32;
the controller is respectively in signal connection with the cold material valve 11, the combustor 21, the finished product valve 31, the waste material valve 32, the oil injection device 6, the vibration device 12, the waste gas valve 23 and the fan 92, and can control the working states of the cold material valve 11, the combustor 21, the finished product valve 31, the waste material valve 32, the oil injection device 6, the vibration device 12, the waste gas valve 23 and the fan 92.
The safe operation method of the plant-mixed hot recycling equipment for the asphalt mixture comprises the following specific steps:
under the normal operating condition: the cold material bin 1 sends cold reclaimed materials to the reclaimed material drying roller 2, the reclaimed material drying roller 2 heats and dries the cold reclaimed materials passing through the burner 21, and the hot reclaimed materials enter the metering device 5 for metering and then are sent into the stirring cylinder 2; the finished product valve 31 of the stirring cylinder 3 is in an open state, the waste valve 32 is in a closed state, and the hot recycled material is stirred by the stirring cylinder 3 and then sent out from the finished product valve 31.
Because the viscosity of the thermal regeneration material is high, in order to prevent the material from being stuck, the fuel injection device 6 injects diesel fuel to the position where the metering device 5 is easy to stick, and the flame detector cloth 7 is arranged at the position because the diesel fuel is inflammable. Waste gas generated in the reclaimed material drying roller 2 is sent out from the waste gas outlet 22, the fan 92 sends the waste gas into the waste gas pipeline 91, and the waste gas enters the combustor 21 through the waste gas pipeline 91 for combustion treatment or enters the primary equipment for treatment.
The temperature detection device 4 detects the temperature value in the reclaimed material drying roller 2 in real time and transmits the temperature value to the controller in real time; the flame detector 7 detects the working state information of the metering device 5 in real time and transmits the information to the controller; when the cold material valve 11 of the cold material bin 1 is in an open state, the material breakage detection device 8 detects the discharging state of the cold material valve 11 in real time and transmits the state information to the controller in real time; the controller stores preset values corresponding to the working state of the reclaimed material drying roller, wherein the normal working state in the roller corresponds to a normal value in the preset values, the ignition state in the roller corresponds to an upper limit value in the preset values, a critical state exists between the normal working state in the roller and the ignition state, the critical state corresponds to an alarm value in the preset values, the normal value is smaller than the alarm value and smaller than the upper limit value, and the controller compares the temperature value transmitted by the temperature detection device 4 with the preset values.
If the temperature value transmitted by the temperature detection device 4 is increased to an alarm value, the controller executes an alarm operation;
because the fire extinguishing operation depends on feeding of cold recycled materials, the working reliability of the cold storage bin 1 needs to be ensured, when the material breakage detection device 8 detects a material breakage signal, material breakage state information is sent to the controller, the controller executes vibration blockage removal operation, the vibration device 12 drives the cold storage bin 1 to vibrate for blockage removal, and the vibration is stopped when the controller does not receive the material breakage state information any more; the controller starts to execute vibration blockage removal operation and simultaneously performs timing operation, and when the timing is up to a first set time, the controller still receives the material failure state information, and then executes alarm operation; when timing to a second set time, the controller still receives the material cutting state information, and then the controller executes the fire reducing operation: reducing the operating power of the burner 21; wherein the first set time is less than the second set time;
wherein the alarm operation is: and (5) responding by using an audible and visual alarm.
If the temperature value transmitted by the temperature detection device rises to the upper limit value, the controller automatically executes the fire extinguishing operation: if the flame detector 7 detects that the metering device 5 catches fire, the controller automatically executes the fire extinguishing operation;
wherein the automatic fire extinguishing operation comprises the steps of closing the burner 21 and locking the state of the burner to be a starting prohibition state, fully opening the cold material valve 11, closing the oil spraying device 6, closing the waste gas valve 23 and the fan 92, closing the finished material valve 31 of the mixing tank and opening the waste material valve 32 of the mixing tank;
cold 1 of feed bin sends into a large amount of cold reclaimed materials toward regeneration drying roller 2, and cold reclaimed materials carries out rapid cooling and puts out to the department of catching fire to regeneration drying roller 2 when regeneration drying roller 2, and cold reclaimed materials puts out to the department of catching fire through 5 departments of metering device, and the final waste material valve of reclaimed materials discharges and abandons the nothing. The waste gas valve 23 and the fan 92 are closed to prevent waste gas from circulating in the reclaimed material drying roller 2 and prevent open fire from being introduced into primary equipment; when the temperature value transmitted by the temperature detection device 4 falls to a normal value, the controller unlocks the state of the burner 21.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (10)
1. A safe operation system of hot plant recycling equipment for asphalt mixtures comprises a cold storage bin, a recycled material drying roller and a stirring cylinder; a cold material valve is arranged at the outlet of the cold material bin, and the cold material bin feeds cold reclaimed materials towards the reclaimed material drying roller; a burner is arranged at one end of the reclaimed material drying roller, and the reclaimed material drying roller heats and dries cold reclaimed materials and then sends the cold reclaimed materials into the stirring cylinder; the stirring cylinder comprises a finished product valve and a waste valve; the method is characterized in that: still include temperature-detecting device, controller, temperature-detecting device locate in the reclaimed material drying roller and with controller signal connection, the controller respectively with cold burden valve, combustor, finished product material valve, waste material valve signal connection, the controller carries out operating condition control to cold burden valve, combustor, finished product material valve, waste material valve.
2. The safe operation system of the hot plant recycling equipment for asphalt mixtures according to claim 1, characterized in that: still wrap metering device, fueling injection equipment, flame detector, metering device locates between reclaimed material drying drum and the churn to the reclaimed material that reclaimed material drying drum sent into the churn measures, fueling injection equipment corresponds the metering device position, in order to reduce the sizing towards metering device department oil spout, the flame detector corresponds the metering device position, with the operating condition information that detects metering device department and with controller signal connection, controller and fueling injection equipment signal connection and steerable its operating condition.
3. The safe operation system of the hot plant recycling equipment for asphalt mixtures according to claim 1, characterized in that: still including disconnected material detection device, be equipped with vibrating device on the cold burden storehouse, disconnected material detection device corresponds cold burden valve position to detect cold burden storehouse ejection of compact state, disconnected material detection device and controller signal connection, controller and vibrating device signal connection and steerable its operating condition.
4. The safe operation system of the hot plant recycling equipment for asphalt mixtures according to claim 1, characterized in that: still include exhaust treatment device, regeneration material drying drum one end is equipped with the exhaust outlet, and exhaust outlet department is equipped with the waste gas valve, exhaust treatment device includes exhaust gas conduit, fan, and exhaust gas conduit entrance point regeneration material drying drum's exhaust outlet connection, exit end and be connected to combustor and native equipment, on the exhaust gas conduit was located to the fan, controller and waste gas valve, fan signal connection and steerable its operating condition.
5. A safe operation method of hot plant recycling equipment for asphalt mixtures is characterized by comprising the following steps: the method comprises the following steps:
step one, a temperature detection device detects a temperature value in a reclaimed material drying roller in real time and transmits the temperature value to a controller in real time;
step two, preset values corresponding to the working state of the reclaimed material drying roller are stored in the controller, wherein the normal working state in the roller corresponds to a normal value in the preset values, and the ignition state in the roller corresponds to an upper limit value in the preset values; the controller compares the temperature value transmitted by the temperature detection device with a preset value;
step three, if the temperature value transmitted by the temperature detection device is increased to the upper limit value, the controller automatically executes the fire extinguishing operation: closing the burner, fully opening the cold material valve, closing the finished product valve of the stirring cylinder and opening the waste material valve of the stirring cylinder; make cold feed bin send into a large amount of cold reworked materials toward regeneration drying roller, cold reworked material is through reworked material drying roller, carries out rapid cooling and puts out to the department of catching fire to regeneration drying roller, and the reworked material is discharged from the waste material valve behind the reworked material drying roller and is abandoned the nothing.
6. The safe operation method of the hot plant recycling equipment for asphalt mixtures according to claim 5, characterized by comprising the following steps: a critical state exists between a normal working state and an ignition state in the roller, the critical state corresponds to an alarm value in the preset values, wherein the normal value is less than the alarm value and less than the upper limit value, and if the temperature value transmitted by the temperature detection device is increased to the alarm value, the controller executes an alarm operation: and (5) responding by using an audible and visual alarm.
7. The safe operation method of the hot plant recycling equipment for asphalt mixtures according to claim 5, characterized by comprising the following steps: the reclaimed material drying roller discharge port is weighed by the metering device and then enters the stirring cylinder, the metering device is provided with an oil injection device, the oil injection device injects oil towards the metering device so as to reduce the sticky material, the flame detector detects the working state information at the metering device in real time and transmits the information to the controller, if the flame detector detects that the metering device is on fire, the controller automatically executes the fire extinguishing operation, and the oil injection device is closed during the fire extinguishing operation.
8. The safe operation method of the hot plant recycling equipment for asphalt mixtures according to claim 5, characterized by comprising the following steps: and when the controller executes the automatic fire extinguishing operation, the state of the combustor is locked into a starting prohibition state until the state of the combustor is unlocked when the temperature value transmitted by the temperature detection device is reduced to a normal value.
9. The safe operation method of the hot plant recycling equipment for asphalt mixtures according to claim 5, characterized by comprising the following steps: when a cold material valve of the cold material bin is in an open state, a material breakage detection device detects the discharging state of the cold material valve in real time and transmits the state information to a controller in real time, when the material breakage detection device detects a material breakage signal, the material breakage state information is sent out and transmitted to the controller, the controller executes vibration blockage removal operation, and the vibration device drives the cold material bin to vibrate to remove blockage until the controller does not receive the material breakage state information any more; the controller begins to carry out vibration and arranges the stifled operation and carry out the timing operation simultaneously, when timing to first settlement time, the controller still receives disconnected material state information, then the controller carries out alarm operation: the audible and visual alarm responds; when timing to a second set time, the controller still receives the material cutting state information, and then the controller executes the fire reducing operation: the working power of the combustor is reduced; wherein the first set time is less than the second set time.
10. The safe operation method of the hot plant recycling equipment for asphalt mixtures according to claim 5, characterized by comprising the following steps: when the controller carries out the automatic fire extinguishing operation, the controller closes the waste gas valve and the fan to prevent waste gas from circulating in the regenerated material drying roller and prevent open fire from introducing into the primary equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010521963.1A CN111549619A (en) | 2020-06-10 | 2020-06-10 | Safe operation system and method for hot plant recycling equipment for asphalt mixture |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010521963.1A CN111549619A (en) | 2020-06-10 | 2020-06-10 | Safe operation system and method for hot plant recycling equipment for asphalt mixture |
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| CN111549619A true CN111549619A (en) | 2020-08-18 |
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| CN202010521963.1A Pending CN111549619A (en) | 2020-06-10 | 2020-06-10 | Safe operation system and method for hot plant recycling equipment for asphalt mixture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021248926A1 (en) * | 2020-06-10 | 2021-12-16 | 福建省铁拓机械股份有限公司 | Safety operation system for asphalt mixture hot-mix plant recycling device |
| CN115323869A (en) * | 2022-07-29 | 2022-11-11 | 常德市三一机械有限公司 | Thermal regeneration equipment, fire emergency method thereof and asphalt stirring equipment |
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|---|---|---|---|---|
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| CN115323869A (en) * | 2022-07-29 | 2022-11-11 | 常德市三一机械有限公司 | Thermal regeneration equipment, fire emergency method thereof and asphalt stirring equipment |
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