CN108951368B - Automatic batching method and system for asphalt mixing plant and asphalt mixing plant - Google Patents
Automatic batching method and system for asphalt mixing plant and asphalt mixing plant Download PDFInfo
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- CN108951368B CN108951368B CN201811032413.2A CN201811032413A CN108951368B CN 108951368 B CN108951368 B CN 108951368B CN 201811032413 A CN201811032413 A CN 201811032413A CN 108951368 B CN108951368 B CN 108951368B
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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
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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
- E01C19/1054—Preparing mixtures of which at least part of the solid ingredients has previously been deposited on the surface, excluding penetrating or surface dressing, e.g. in situ mixing, mixing involving lifting of spread or windrowed aggregate
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Abstract
The invention provides an automatic batching method of an asphalt mixing plant, wherein the asphalt mixing plant comprises N cold bins and N hot bins, the average particle sizes of aggregates stored in the 1 st cold bin and the 2 nd cold bin … Nth cold bin are sequentially increased, the average particle sizes of aggregates stored in the 1 st hot bin and the 2 nd hot bin … Nth hot bin are sequentially increased, the 1 st cold bin corresponds to the 1 st hot bin, and the 2 nd cold bin corresponds to the 2 nd hot bin … automatic batching method comprises the following steps: step 102: acquiring the storage amount of each hot material bin; step 104: and when the storage amount of the ith hot bin is lower than a first preset value, the discharging speed of the ith cold bin is adjusted upwards, and when the storage amount of the ith hot bin is higher than a second preset value, the discharging speed of the ith cold bin is adjusted downwards, wherein i is an integer selected from 1-N, and the first preset value is smaller than the second preset value. The invention further provides an automatic batching system of the asphalt mixing plant and the asphalt mixing plant.
Description
Technical Field
The invention relates to the field of asphalt mixing equipment, in particular to an automatic batching method of an asphalt mixing plant, an automatic batching system of the asphalt mixing plant and the asphalt mixing plant.
Background
Asphalt mixing plants, also known as asphalt mixing plants, are used for the mass production of asphalt concrete. The existing asphalt mixing plant mainly comprises a cold material system, a drying system, a hot material lifting system, a vibrating screen system, a hot material bin system, a metering and mixing system, a dust removal system, a control system and the like. The cold material system is connected with the drying system, the drying system is connected with the hot material lifting system, the hot material lifting system is connected with the vibrating screen system, the vibrating screen system is connected with the hot material bin system, the hot material bin system is connected with the metering and stirring system, the dust removal system is connected with the drying system, and the control system is used for controlling the systems.
The hot aggregate bin system comprises a hot aggregate bin, and stone (aggregate for short) screened out from the vibrating screen system is stored in the hot aggregate bin. Because the difference of raw and other materials, so particle diameter and position in every hot storage bin are all inequality, full storehouse can harm the shale shaker system, and empty storehouse can cause the measurement to wait for, influences output, so need judge the material level in every feed bin to batching to every feed bin.
However, in the production process of the asphalt mixing plant with the existing structure, due to the problems of untimely cold material feeding or unmatched aggregate particles, the problems of material shortage and material overflow of the hot material bin often occur, the energy of a client is wasted, and the production capacity of equipment is seriously influenced. The problems of shortage and overflow of hot aggregates are solved at the present stage, and the hot aggregates are manually blended mainly by the field experience of an operator, so that the requirement on the skill level of the operator is high, and the labor intensity is high.
Therefore, for those skilled in the art, how to provide an automatic batching method and an automatic batching system for an asphalt mixing plant to reduce the short time and the overflow time as much as possible and ensure the production capacity of the equipment is a technical problem to be solved in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an automatic batching method and an automatic batching system for an asphalt mixing plant, so as to reduce or avoid the problems of material shortage and material overflow of a hot material bin and ensure the production capacity of equipment.
In order to solve the technical problem, the invention provides an automatic batching method for an asphalt mixing plant, wherein the asphalt mixing plant comprises N cold bins and N hot bins for storing aggregates with different particle sizes, N is an integer greater than or equal to 2, the average particle sizes of the aggregates stored in the 1 st cold bin and the 2 nd cold bin … … Nth cold bin are sequentially increased, the average particle sizes of the aggregates stored in the 1 st hot bin and the 2 nd hot bin … … Nth hot bin are sequentially increased, the 1 st cold bin corresponds to the 1 st hot bin, the 2 nd cold bin corresponds to the 2 nd hot bin … … Nth cold bin and corresponds to the Nth hot bin, and the automatic batching method comprises the following steps:
step 102: acquiring the storage amount of each hot material bin;
step 104: and when the storage amount of the ith hot bin is lower than a first preset value, the discharging speed of the ith cold bin is adjusted upwards, and when the storage amount of the ith hot bin is higher than a second preset value, the discharging speed of the ith cold bin is adjusted downwards, wherein i is an integer selected from 1-N, and the first preset value is smaller than the second preset value.
As an improvement of the automatic batching method of the asphalt mixing plant in one aspect of the present invention, the step 104 is specifically:
when the storage amount of the ith hot material bin is lower than a first preset value, the unloading speed of the ith cold material bin is adjusted upwards, and when the storage amount of the ith hot material bin reaches a target preset value, the unloading speed of the ith cold material bin is restored to the preset speed; when the storage amount of the ith hot material bin is higher than a second preset value, the unloading speed of the ith cold material bin is adjusted downwards, and when the storage amount of the ith hot material bin reaches a target preset value, the unloading speed of the ith cold material bin is restored to the preset speed; the target preset value is larger than the first preset value and smaller than the second preset value.
As an improvement of one aspect of the automatic batching method of the asphalt mixing plant of the present invention, it further comprises a step 106, after step 104:
acquiring the increasing speed or the decreasing speed of the storage amount of the ith-1 th hot material bin, the ith hot material bin and the (i + 1) th hot material bin:
1) when the storage amount of the ith hot material bin is lower than a first preset value, the unloading speed of the ith cold material bin is adjusted upwards, and if the increasing speed of the storage amount of the (i-1) th hot material bin is larger than or equal to the increasing speed of the storage amount of the ith hot material bin, the unloading speed of the (i-1) th cold material bin is adjusted downwards; if the increasing speed of the storage amount of the (i + 1) th hot bin is larger than or equal to the increasing speed of the storage amount of the (i) th hot bin, the discharging speed of the (i + 1) th cold bin is adjusted downwards;
2) when the storage amount of the ith hot material bin is higher than a second preset value and the unloading speed of the ith cold material bin is adjusted downwards, if the reduction speed of the storage amount of the (i-1) th hot material bin is larger than or equal to the reduction speed of the storage amount of the ith hot material bin, the unloading speed of the (i-1) th cold material bin is adjusted upwards; and if the reduction speed of the storage amount of the (i + 1) th hot bin is greater than or equal to the reduction speed of the storage amount of the (i) th hot bin, the discharging speed of the (i + 1) th cold bin is adjusted upwards.
It should be mentioned that this step 106 is mainly designed for possible mixing situations. For example, the specification of the storage particle size of the 3 rd cold bin is 5-11 aggregates, when the discharging speed of the 3 rd cold bin is adjusted, the storage amount of the 3 rd hot bin and the storage amount of the 2 nd hot bin are simultaneously influenced, the aggregates stored in the 3 rd cold bin are relatively fine and contain the aggregates required by the 2 nd hot bin, and when the storage amount of the 3 rd hot bin is lower than a first preset value and the discharging speed of the 3 rd cold bin is adjusted upwards, if the increasing speed of the storage amount of the 2 nd hot bin is greater than or equal to the increasing speed of the storage amount of the 3 rd hot bin, the discharging speed of the 2 nd cold bin is adjusted downwards; when the storage amount of the 3 rd hot material bin is higher than the second preset value, the discharging speed of the 3 rd cold material bin is adjusted downwards, and if the reducing speed of the storage amount of the 2 nd hot material bin is larger than or equal to the reducing speed of the storage amount of the 3 rd hot material bin, the discharging speed of the 2 nd cold material bin is adjusted upwards. And when the storage amount of the 3 rd hot material bin reaches a target preset value, respectively recovering the discharging speeds of the 2 nd cold material bin and the 3 rd cold material bin to preset speeds.
As an improvement of the automatic batching method of the asphalt mixing plant, the storage amount is a storage ratio or a storage bin position.
As an improvement of an aspect of the automatic batching method of the asphalt mixing plant of the present invention, said automatic batching method comprises the further step 108 of: aggregate temperature at the discharge box of the drying roller between the cold bin and the hot bin is detected, and firepower of a burner of the drying roller is adjusted according to the aggregate temperature.
According to the automatic batching method of the asphalt mixing plant, the unloading speed of the cold material bin corresponding to the hot material bin can be automatically adjusted according to the storage amount of each hot material bin, so that the storage amount of the hot material bin is always in a normal range, the problems of material shortage and material overflow of the hot material bin are reduced or avoided, and the production capacity of equipment is ensured.
In another aspect, the present invention provides an automatic batching system for an asphalt mixing plant, where the asphalt mixing plant includes N cold bins and N hot bins, where N is an integer greater than or equal to 2, the N cold bins and the N hot bins are used to store aggregates with different particle sizes, the average particle sizes of the aggregates stored in the 1 st cold bin and the 2 nd cold bin … … N cold bin are sequentially increased, the average particle sizes of the aggregates stored in the 1 st hot bin and the 2 nd hot bin … … N hot bin are sequentially increased, the 1 st cold bin corresponds to the 1 st hot bin, the 2 nd cold bin corresponds to the 2 nd hot bin … … N cold bin corresponds to the N hot bin, the automatic batching system includes a control device, a material level detection device for detecting the amount of each hot bin, and an execution device for adjusting the discharge speed of each cold bin, the control device is used to control the execution device to operate according to a detection signal of the material level detection device, when the material level detection device detects that the storage amount of the ith hot bin is lower than a first preset value, the control device is used for adjusting the discharging speed of the ith cold bin upwards through the execution device, and when the material level detection device detects that the storage amount of the ith hot bin is higher than a second preset value, the control device is used for adjusting the discharging speed of the ith cold bin downwards through the execution device, wherein the first preset value is smaller than the second preset value, i is an integer selected from 1-N, and the first preset value is smaller than the second preset value.
As an improvement of an aspect of the automatic batching system of the asphalt mixing plant of the present invention, when the material level detecting device detects that the storage amount of the ith hot bin is lower than a first preset value, the control device is configured to adjust up the discharging speed of the ith cold bin through the executing device, and when the storage amount of the ith hot bin reaches a target preset value, the control device is configured to restore the discharging speed of the ith cold bin to a preset speed through the executing device; when the material level detection device detects that the storage amount of the ith hot bin is higher than a second preset value, the control device is used for adjusting the discharging speed of the ith cold bin downwards through the execution device, and when the storage amount of the ith hot bin reaches a target preset value, the control device is used for restoring the discharging speed of the ith cold bin to the preset speed through the execution device, and the target preset value is larger than the first preset value and smaller than the second preset value.
As an improvement of an aspect of the automatic batching system of the asphalt mixing plant of the present invention, the control device is configured to calculate an increasing speed or a decreasing speed of the storage amount of the i-1 th hot bin, the i-1 th hot bin and the i +1 th hot bin according to the detection data of the level detecting device:
1) when the storage amount of the ith hot bin is lower than a first preset value, the discharging speed of the ith cold bin is adjusted upwards, and if the increasing speed of the storage amount of the (i-1) th hot bin is greater than or equal to the increasing speed of the storage amount of the ith hot bin, the control device is used for adjusting the discharging speed of the (i-1) th cold bin downwards through the execution device; if the increasing speed of the storage amount of the (i + 1) th hot bin is greater than or equal to the increasing speed of the storage amount of the ith hot bin, the control device is used for adjusting the discharging speed of the (i + 1) th cold bin downwards through the execution device;
2) when the storage amount of the ith hot bin is higher than a second preset value and the discharging speed of the ith cold bin is adjusted downwards, if the reducing speed of the storage amount of the (i-1) th hot bin is larger than or equal to the reducing speed of the storage amount of the ith hot bin, the control device is used for adjusting the discharging speed of the (i-1) th cold bin upwards through the execution device; if the reduction speed of the storage amount of the (i + 1) th hot bin is greater than or equal to the reduction speed of the storage amount of the (i) th hot bin, the control device is used for adjusting the discharging speed of the (i + 1) th cold bin upwards through the execution device.
As an improvement of the automatic batching system of the asphalt mixing plant in one aspect of the invention, a temperature sensor for detecting the temperature of the aggregate is arranged at the discharging box of the drying drum between the cold bin and the hot bin, and the control device is used for adjusting the fire power of a burner of the drying drum according to the detection temperature of the temperature sensor.
The automatic batching system of the asphalt mixing plant can automatically adjust the unloading speed of the cold material bin corresponding to the hot material bin according to the material storage amount of each hot material bin, so that the material storage amount of the hot material bin is always in a normal range, the problems of material shortage and material overflow of the hot material bin are reduced or avoided, and the production capacity of equipment is ensured.
The invention provides an asphalt mixing plant, which comprises N cold material bins, a conveyor, a drying roller, a hot material hoister, a vibrating screen and N hot material bins which are sequentially connected, and further comprises an automatic batching system of the asphalt mixing plant in any one of the schemes.
Since the asphalt mixing plant is provided with the automatic batching system of the asphalt mixing plant, the asphalt mixing plant has all the technical effects of the automatic batching system of the asphalt mixing plant, and the details are not repeated herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view of the steps of a first embodiment of the automatic batching method of the asphalt mixing plant according to the present invention;
FIG. 2 is a schematic view showing the steps of a second embodiment of the automatic batching method of the asphalt mixing plant according to the present invention;
FIG. 3 is a schematic view showing the steps of a third embodiment of the automatic batching method of the asphalt mixing plant according to the present invention;
FIG. 4 is a schematic view showing the steps of a fourth embodiment of the automatic batching method of the asphalt mixing plant according to the present invention;
FIG. 5 is a schematic diagram of the automatic batching system of the asphalt mixing plant of the present invention in the absence of mixing material;
FIG. 6 is a schematic diagram of the automatic batching system of the asphalt mixing plant of the present invention in the presence of mixing material.
The corresponding relationship of the reference numbers in the figures is:
1 cold material bin 2 conveyer 3 drying drum
4 hot material hoister 5 vibrating screen 6 hot material bin
7 material level detection device 8 control device 9 executive device
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The embodiments and features of the embodiments of the present invention may be combined with each other without conflict. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In each of the embodiments described below, the stock amount may be a stock ratio or may be a stock bin.
When the storage amount is the storage ratio, it can be understood that the storage ratio and the bin level are in one-to-one correspondence, and when the bin is full, the storage ratio is 100%; when the bin is empty, the storage ratio is 0%, in this case, the target preset value may be any value between 55% and 65% excluding 55% and 65%, and the first preset value may be any value between 20% and 55% including 20% and 55%; the second preset value may be any value between 65% and 90%, including 65% and 90%. Preferably, the target preset value is 60%, the first preset value is 40%, and the second preset value is 80%.
When the stored material amount is a storage bin level, it can be understood that any bin level has a corresponding storage material height, the storage material height value of the hot bin when the hot bin is full is obtained first, then the bin level corresponding to any height value, excluding 55% and 65%, between 55% and 65% of the storage material height value when the hot bin is full is taken as a target preset value, correspondingly, the bin level corresponding to any height value, including 20% and 55%, between 20% and 55% of the storage material height value of the hot bin when the hot bin is full is taken as a first preset value, and the bin level corresponding to any height value, including 65% and 90%, between 65% and 90% of the storage material height value of the hot bin when the hot bin is full is taken as a second preset value. Preferably, the bin level corresponding to 60% of the storage height value of the hot bin when the hot bin is full is taken as a target preset value, the bin level corresponding to 40% of the storage height value of the hot bin when the hot bin is full is taken as a first preset value, and the bin level corresponding to 80% of the storage height value of the hot bin when the hot bin is full is taken as a second preset value.
In addition, obtaining the increasing speed or the decreasing speed of the storage amount of the i-1 th hot bin 6, the i-th hot bin 6, and the i +1 th hot bin 6 is divided into three cases: the first case: when i is 1, only acquiring the increasing speed or the decreasing speed of the storage amount of the 1 st hot bin and the 2 nd hot bin; the second case is to acquire the increasing speed or decreasing speed of the stock amounts of the i-1 th hot bin 6, the i-th hot bin 6, and the i +1 th hot bin 6 when 1< i < N, and the third case is to acquire only the increasing speed or decreasing speed of the stock amounts of the N-th hot bin and the N-1 th hot bin when i is N.
Example 1
As shown in fig. 1, the present invention provides an automatic batching method for an asphalt mixing plant, where the asphalt mixing plant includes 4 cold bins 1 and 4 hot bins 6 for storing aggregates with different particle sizes, the average particle sizes of the aggregates stored in the 1 st cold bin 1 and the 2 nd cold bin 1 … … of the 4 th cold bin 1 are sequentially increased, the average particle sizes of the aggregates stored in the 1 st hot bin 6 and the 2 nd hot bin 6 … … of the 4 th hot bin 6 are sequentially increased, the 1 st cold bin 1 corresponds to the 1 st hot bin 6, the 2 nd cold bin 1 corresponds to the 2 nd hot bin 6 … … of the 4 th cold bin 1 corresponds to the 4 th hot bin 6, and the automatic batching method includes the following steps:
step 102: acquiring the storage proportion of each hot material bin 6;
step 104: and when the storage proportion of the ith hot bin 6 is lower than 30%, the discharging speed of the ith cold bin 1 is adjusted upwards, and when the storage proportion of the ith hot bin 6 is higher than 70%, the discharging speed of the ith cold bin 1 is adjusted downwards, wherein i is an integer selected from 1-4.
In the above embodiment, the storage proportion substantially refers to the material level of the hot material bin 6, the storage proportion can be obtained through simple conversion, the storage proportion and the bin level are in one-to-one correspondence, and when the bin is full, the storage proportion is 100%; when the bin is empty, the storage proportion is 0 percent.
According to the automatic batching method of the asphalt mixing plant, the unloading speed of the cold material bin 1 corresponding to the hot material bin 6 can be automatically adjusted according to the material storage proportion of each hot material bin 6, so that the material storage proportion of the hot material bin 6 is always in a normal range, the problems of material shortage and material overflow of the hot material bins 6 are reduced or avoided, and the production capacity of equipment is ensured.
Example 2
As shown in fig. 2, the present invention provides an automatic batching method for an asphalt mixing plant, where the asphalt mixing plant includes 5 cold bunker 1 and 5 hot bunker 6 for storing aggregates with different particle sizes, the average particle sizes of the aggregates stored in the 1 st cold bunker 1 and the 2 nd cold bunker 1 … … of the 5 th cold bunker 1 are sequentially increased, the average particle sizes of the aggregates stored in the 1 st hot bunker 6 and the 2 nd hot bunker 6 … … of the 5 th hot bunker 6 are sequentially increased, the 1 st cold bunker 1 corresponds to the 1 st hot bunker 6, the 2 nd cold bunker 1 corresponds to the 2 nd hot bunker 6 … … of the 2 nd cold bunker 1 corresponds to the 5 th hot bunker 6, and the automatic batching method includes the following steps:
step 102: acquiring the storage proportion of each hot material bin 6;
step 104: when the storage proportion of the ith hot material bin 6 is lower than 20%, the discharging speed of the ith cold material bin 1 is adjusted upwards, and when the storage proportion of the ith hot material bin 6 reaches 56%, the discharging speed of the ith cold material bin 1 is restored to the preset speed; when the storage proportion of the ith hot material bin 6 is higher than 90%, the discharging speed of the ith cold material bin 1 is adjusted downwards, and when the storage proportion of the ith hot material bin 6 reaches 56%, the discharging speed of the ith cold material bin 1 is restored to the preset speed.
In the above embodiment, the storage proportion substantially refers to the material level of the hot material bin 6, and when the bin is full, the storage proportion is 100%; when the bin is empty, the storage proportion is 0 percent. The preset speed of the ith cold bin 1 refers to a conventional discharging speed of the ith hot bin 6, wherein the storage ratio of the ith hot bin is within a range between a first preset value and a second preset value.
According to the automatic batching method of the asphalt mixing plant, the unloading speed of the cold material bin 1 corresponding to the hot material bin 6 can be automatically adjusted according to the material storage proportion of each hot material bin 6, so that the material storage proportion of the hot material bin 6 is always in a normal range, the problems of material shortage and material overflow of the hot material bins 6 are reduced or avoided, and the production capacity of equipment is ensured.
Example 3
As shown in fig. 2, the present invention provides an automatic batching method for an asphalt mixing plant, where the asphalt mixing plant includes 5 cold bunker 1 and 5 hot bunker 6 for storing aggregates with different particle sizes, the average particle sizes of the aggregates stored in the 1 st cold bunker 1 and the 2 nd cold bunker 1 … … of the 5 th cold bunker 1 are sequentially increased, the average particle sizes of the aggregates stored in the 1 st hot bunker 6 and the 2 nd hot bunker 6 … … of the 5 th hot bunker 6 are sequentially increased, the 1 st cold bunker 1 corresponds to the 1 st hot bunker 6, the 2 nd cold bunker 1 corresponds to the 2 nd hot bunker 6 … … of the 2 nd cold bunker 1 corresponds to the 5 th hot bunker 6, and the automatic batching method includes the following steps:
step 102: acquiring the storage proportion of each hot material bin 6;
step 104: when the storage proportion of the ith hot material bin 6 is lower than 55%, the discharging speed of the ith cold material bin 1 is adjusted upwards, and when the storage proportion of the ith hot material bin 6 reaches 61%, the discharging speed of the ith cold material bin 1 is restored to the preset speed; when the storage proportion of the ith hot material bin 6 is higher than 65%, the discharging speed of the ith cold material bin 1 is adjusted downwards, and when the storage proportion of the ith hot material bin 6 reaches 61%, the discharging speed of the ith cold material bin 1 is restored to the preset speed.
Step 106: acquiring the increasing speed or the decreasing speed of the storage proportion of the ith-1 th hot material bin 6, the ith hot material bin 6 and the (i + 1) th hot material bin 6:
1) when the storage proportion of the ith hot material bin 6 is lower than 55%, the unloading speed of the ith cold material bin 1 is adjusted upwards, and if the increasing speed of the storage proportion of the (i-1) th hot material bin 6 is greater than or equal to the increasing speed of the storage proportion of the ith hot material bin 6, the unloading speed of the (i-1) th cold material bin 1 is adjusted downwards; if the increasing speed of the storage proportion of the (i + 1) th hot material bin 6 is greater than or equal to the increasing speed of the storage proportion of the (i) th hot material bin 6, the discharging speed of the (i + 1) th cold material bin 1 is adjusted downwards;
2) when the storage proportion of the ith hot material bin 6 is higher than 65%, the unloading speed of the ith cold material bin 1 is adjusted downwards, and if the reduction speed of the storage proportion of the (i-1) th hot material bin 6 is greater than or equal to the reduction speed of the storage proportion of the ith hot material bin 6, the unloading speed of the (i-1) th cold material bin 1 is adjusted upwards; and if the reduction speed of the storage proportion of the (i + 1) th hot material bin 6 is greater than or equal to the reduction speed of the storage proportion of the (i) th hot material bin 6, the discharging speed of the (i + 1) th cold material bin 1 is adjusted upwards.
In the above embodiment, the storage proportion substantially refers to the material level of the hot material bin 6, and when the bin is full, the storage proportion is 100%; when the bin is empty, the storage proportion is 0 percent. The preset speed of the ith cold bin 1 refers to a conventional discharging speed of the ith hot bin 6, wherein the storage ratio of the ith hot bin is within a range between a first preset value and a second preset value.
According to the automatic batching method of the asphalt mixing plant, the unloading speed of the cold material bin 1 corresponding to the hot material bin 6 can be automatically adjusted according to the material storage proportion of each hot material bin 6, so that the material storage proportion of the hot material bin 6 is always in a normal range, the problems of material shortage and material overflow of the hot material bins 6 are reduced or avoided, and the production capacity of equipment is ensured.
Example 4
As shown in fig. 2, the present invention provides an automatic batching method for an asphalt mixing plant, where the asphalt mixing plant includes 6 cold bunker 1 and 6 hot bunker 6 for storing aggregates with different particle sizes, the average particle sizes of the aggregates stored in the 1 st cold bunker 1 and the 2 nd cold bunker 1 … … of the 6 th cold bunker 1 are sequentially increased, the average particle sizes of the aggregates stored in the 1 st hot bunker 6 and the 2 nd hot bunker 6 … … of the 6 th hot bunker 6 are sequentially increased, the 1 st cold bunker 1 corresponds to the 1 st hot bunker 6, the 2 nd cold bunker 1 corresponds to the 2 nd hot bunker 6 … … of the 6 th cold bunker 1 corresponds to the 6 th hot bunker 6, and the automatic batching method includes the following steps:
step 102: acquiring the storage proportion of each hot material bin 6;
step 104: when the storage proportion of the ith hot material bin 6 is lower than 40%, the discharging speed of the ith cold material bin 1 is adjusted upwards, and when the storage proportion of the ith hot material bin 6 reaches 60%, the discharging speed of the ith cold material bin 1 is restored to the preset speed; when the storage proportion of the ith hot material bin 6 is higher than 80%, the discharging speed of the ith cold material bin 1 is adjusted downwards, and when the storage proportion of the ith hot material bin 6 reaches 60%, the discharging speed of the ith cold material bin 1 is restored to the preset speed.
Step 106: acquiring the increasing speed or the decreasing speed of the storage proportion of the ith-1 th hot material bin 6, the ith hot material bin 6 and the (i + 1) th hot material bin 6:
1) when the storage proportion of the ith hot material bin 6 is lower than 40%, the unloading speed of the ith cold material bin 1 is adjusted upwards, and if the increasing speed of the storage proportion of the (i-1) th hot material bin 6 is greater than or equal to the increasing speed of the storage proportion of the ith hot material bin 6, the unloading speed of the (i-1) th cold material bin 1 is adjusted downwards; if the increasing speed of the storage proportion of the (i + 1) th hot material bin 6 is greater than or equal to the increasing speed of the storage proportion of the (i) th hot material bin 6, the discharging speed of the (i + 1) th cold material bin 1 is adjusted downwards;
2) when the storage proportion of the ith hot material bin 6 is higher than 80%, the unloading speed of the ith cold material bin 1 is adjusted downwards, and if the reduction speed of the storage proportion of the (i-1) th hot material bin 6 is greater than or equal to the reduction speed of the storage proportion of the ith hot material bin 6, the unloading speed of the (i-1) th cold material bin 1 is adjusted upwards; and if the reduction speed of the storage proportion of the (i + 1) th hot material bin 6 is greater than or equal to the reduction speed of the storage proportion of the (i) th hot material bin 6, the discharging speed of the (i + 1) th cold material bin 1 is adjusted upwards.
Step 108: the aggregate temperature at the discharge box of the drying drum 3 between the cold bin 1 and the hot bin 6 is detected, and the aggregate temperature is used for adjusting the firepower of a burner of the drying drum 3 according to the temperature. Because the change of the discharging speed of the cold storage bin 1 may cause the change of the aggregate temperature, in order to ensure that the aggregate temperature is qualified, the cold storage bin is used for adjusting the firepower of the burner of the drying drum 3 according to the detected aggregate temperature at the discharging box of the drying drum 3 between the cold storage bin 1 and the hot storage bin 6, such as being used for adjusting the firepower of the burner through a plurality of modes of variable frequency speed regulation of an air blower, air door opening adjustment and the like, in order to ensure that the aggregate temperature is qualified.
In the above embodiment, the storage proportion substantially refers to the material level of the hot material bin 6, and when the bin is full, the storage proportion is 100%; when the bin is empty, the storage proportion is 0 percent.
According to the automatic batching method of the asphalt mixing plant, the unloading speed of the cold material bin 1 corresponding to the hot material bin 6 can be automatically adjusted according to the material storage proportion of each hot material bin 6, so that the material storage proportion of the hot material bin 6 is always in a normal range, the problems of material shortage and material overflow of the hot material bins 6 are reduced or avoided, and the production capacity of equipment is ensured.
Example 5
As shown in fig. 3, the present invention provides an automatic batching method for an asphalt mixing plant, where the asphalt mixing plant includes 6 cold bunker 1 and 6 hot bunker 6 for storing aggregates with different particle sizes, the average particle sizes of the aggregates stored in the 1 st cold bunker 1 and the 2 nd cold bunker 1 … … of the 6 th cold bunker 1 are sequentially increased, the average particle sizes of the aggregates stored in the 1 st hot bunker 6 and the 2 nd hot bunker 6 … … of the 6 th hot bunker 6 are sequentially increased, the 1 st cold bunker 1 corresponds to the 1 st hot bunker 6, the 2 nd cold bunker 1 corresponds to the 2 nd hot bunker 6 … … of the 6 th cold bunker 1 corresponds to the 6 th hot bunker 6, and the automatic batching method includes the following steps:
step 102: acquiring a storage bin position of each hot bin 6;
step 104: when the storage bin position of the ith hot bin 6 is lower than a first preset value, the unloading speed of the ith cold bin 1 is adjusted upwards, and when the storage bin position of the ith hot bin 6 reaches a target preset value, the unloading speed of the ith cold bin 1 is restored to a preset speed; and when the storage bin position of the ith hot bin 6 is higher than the second preset value, the discharging speed of the ith cold bin 1 is adjusted downwards, and when the storage bin position of the ith hot bin 6 reaches the target preset value, the discharging speed of the ith cold bin 1 is restored to the preset speed.
Example 6
As shown in fig. 4, the present invention provides an automatic batching method for an asphalt mixing plant, where the asphalt mixing plant includes 6 cold bunker 1 and 6 hot bunker 6 for storing aggregates with different particle sizes, the average particle sizes of the aggregates stored in the 1 st cold bunker 1 and the 2 nd cold bunker 1 … … of the 6 th cold bunker 1 are sequentially increased, the average particle sizes of the aggregates stored in the 1 st hot bunker 6 and the 2 nd hot bunker 6 … … of the 6 th hot bunker 6 are sequentially increased, the 1 st cold bunker 1 corresponds to the 1 st hot bunker 6, the 2 nd cold bunker 1 corresponds to the 2 nd hot bunker 6 … … of the 6 th cold bunker 1 corresponds to the 6 th hot bunker 6, and the automatic batching method includes the following steps:
step 102: acquiring a storage bin position of each hot bin 6;
step 104: when the storage bin position of the ith hot bin 6 is lower than a first preset value, the unloading speed of the ith cold bin 1 is adjusted upwards, and when the storage bin position of the ith hot bin 6 reaches a target preset value, the unloading speed of the ith cold bin 1 is restored to a preset speed; and when the storage bin position of the ith hot bin 6 is higher than the second preset value, the discharging speed of the ith cold bin 1 is adjusted downwards, and when the storage bin position of the ith hot bin 6 reaches the target preset value, the discharging speed of the ith cold bin 1 is restored to the preset speed.
Step 106: acquiring the increasing speed or the decreasing speed of the storage bin positions of the ith-1 th hot bin 6, the ith hot bin 6 and the (i + 1) th hot bin 6:
1) when the storage bin position of the ith hot bin 6 is lower than a first preset value, the unloading speed of the ith cold bin 1 is adjusted upwards, and if the increasing speed of the storage bin position of the ith-1 hot bin 6 is greater than or equal to the increasing speed of the storage bin position of the ith hot bin 6, the unloading speed of the ith-1 cold bin 1 is adjusted downwards; if the increasing speed of the storage bin position of the (i + 1) th hot bin 6 is greater than or equal to the increasing speed of the storage bin position of the (i) th hot bin 6, the discharging speed of the (i + 1) th cold bin 1 is adjusted downwards;
2) when the material storage bin position of the ith hot material bin 6 is higher than a second preset value and the discharging speed of the ith cold material bin 1 is adjusted downwards, if the reducing speed of the material storage bin position of the (i-1) th hot material bin 6 is greater than or equal to the reducing speed of the material storage bin position of the ith hot material bin 6, the discharging speed of the (i-1) th cold material bin 1 is adjusted upwards; and if the reduction speed of the storage bin position of the (i + 1) th hot bin 6 is greater than or equal to the reduction speed of the storage bin position of the (i) th hot bin 6, the discharging speed of the (i + 1) th cold bin 1 is adjusted upwards.
Step 108: the aggregate temperature at the discharge box of the drying drum 3 between the cold bin 1 and the hot bin 6 is detected, and the aggregate temperature is used for adjusting the firepower of a burner of the drying drum 3 according to the temperature. Because the change of the discharging speed of the cold storage bin 1 may cause the change of the aggregate temperature, in order to ensure that the aggregate temperature is qualified, the cold storage bin is used for adjusting the firepower of the burner of the drying drum 3 according to the detected aggregate temperature at the discharging box of the drying drum 3 between the cold storage bin 1 and the hot storage bin 6, such as being used for adjusting the firepower of the burner through a plurality of modes of variable frequency speed regulation of an air blower, air door opening adjustment and the like, in order to ensure that the aggregate temperature is qualified.
According to the automatic batching method of the asphalt mixing plant, the unloading speed of the cold material bin 1 corresponding to the storage bin position of each hot material bin 6 can be automatically adjusted according to the storage bin position of the hot material bin 6, so that the storage bin position of the hot material bin 6 is always in a normal range, the problems of material shortage and material overflow of the hot material bin 6 are reduced or avoided, and the production capacity of equipment is ensured.
Example 7
As shown in fig. 5 and 6, the present invention provides an automatic batching system for an asphalt mixing plant, the asphalt mixing plant includes N cold bins 1, a conveyor 2, a drying drum 3, a hot material elevator 4, a vibrating screen 5 and N hot bins 6 connected in sequence, where N is an integer greater than or equal to 2, the N cold bins 1 and the N hot bins 6 are used for storing aggregates with different particle size specifications, the average particle sizes of the aggregates stored in the 1 st cold bin 1 and the 2 nd cold bin 1 … … nth cold bin 1 are sequentially increased, the average particle sizes of the aggregates stored in the 1 st hot bin 6 and the 2 nd hot bin 6 … … nth hot bin 6 are sequentially increased, the 1 st cold bin 1 corresponds to the 1 st hot bin 6, the 2 nd cold bin 1 corresponds to the 2 nd hot bin 6 … … nth cold bin 1 corresponds to the nth hot bin 6, the automatic batching system includes a material level detecting device 7 for detecting the ratio of each hot bin 6, the control device 8 is used for controlling the execution device 9 to act according to a detection signal of the material level detection device 7, when the material level detection device 7 detects that the storage proportion of the ith hot bin 6 is lower than a first preset value, the control device 8 is used for adjusting the unloading speed of the ith cold bin 1 through the execution device 9, when the material level detection device 7 detects that the storage proportion of the ith hot bin 6 is higher than a second preset value, the control device 8 is used for adjusting the unloading speed of the corresponding ith cold bin 1 through the execution device 9, the first preset value is smaller than the second preset value, wherein i is an integer selected from 1-N, and the first preset value is smaller than the second preset value.
In the above embodiment, the material level detecting device 7 may be a material level meter, and the control device 8 may be a single chip microcomputer or a PLC programmable controller.
According to the automatic batching system of the asphalt mixing plant, the unloading speed of the cold material bin 1 corresponding to the hot material bin 6 can be automatically adjusted according to the material storage proportion of the hot material bin 6, so that the material storage proportion of the hot material bin 6 is always in a normal range, the problems of material shortage and material overflow of the hot material bin 6 are reduced or avoided, and the production capacity of equipment is ensured.
Preferably, when the material level detection device 7 detects that the storage proportion of the ith hot bin 6 is lower than a first preset value, the control device 8 is configured to adjust the discharging speed of the ith cold bin 1 up through the execution device 9, and when the storage proportion of the ith hot bin 6 reaches a target preset value, the control device 8 is configured to restore the discharging speed of the ith cold bin 1 to a preset speed through the execution device 9; when the material level detection device 7 detects that the storage proportion of the ith hot material bin 6 is higher than a second preset value, the control device 8 is used for adjusting the discharging speed of the ith cold material bin 1 downwards through the execution device 9, and when the storage proportion of the ith hot material bin 6 reaches a target preset value, the control device 8 is used for restoring the discharging speed of the ith cold material bin 1 to the preset speed through the execution device 9, and the target preset value is larger than the first preset value and smaller than the second preset value. The preset speed of the ith cold bin 1 refers to a conventional discharging speed of the ith hot bin 6, wherein the storage ratio of the ith hot bin is within a range between a first preset value and the second preset value.
More preferably, the control device 8 is configured to calculate, according to the detection data of the material level detection device 7, an increase speed or a decrease speed of the storage proportion of the i-1 th hot bin 6, the i-th hot bin 6, and the i +1 th hot bin 6, according to the possible material mixing phenomenon:
1) when the storage proportion of the ith hot bin 6 is lower than a first preset value, and the discharging speed of the ith cold bin 1 is adjusted upwards, if the increasing speed of the storage proportion of the ith-1 hot bin 6 is greater than or equal to the increasing speed of the storage proportion of the ith hot bin 6, the control device 8 is used for adjusting the discharging speed of the ith-1 cold bin 1 downwards through the execution device 9; if the increasing speed of the storage proportion of the (i + 1) th hot bunker 6 is greater than or equal to the increasing speed of the storage proportion of the i th hot bunker 6, the control device 8 is used for adjusting the discharging speed of the (i + 1) th cold bunker 1 downwards through the execution device 9;
2) when the material storage proportion of the ith hot material bin 6 is higher than the second preset value and the discharging speed of the ith cold material bin 1 is adjusted downwards, if the reducing speed of the material storage proportion of the (i-1) th hot material bin 6 is greater than or equal to the reducing speed of the material storage proportion of the ith hot material bin 6, the control device 8 is used for adjusting the discharging speed of the (i-1) th cold material bin 1 upwards through the execution device 9; if the reduction speed of the storage proportion of the (i + 1) th hot bin 6 is greater than or equal to the reduction speed of the storage proportion of the (i) th hot bin 6, the control device 8 is used for adjusting the discharging speed of the (i + 1) th cold bin 1 through the execution device 9.
For example, the control device 8 is configured to control the execution device 9 to act according to the detection signal of the material level detection device 7, for example, adjust the discharge speed of the 3 rd cold bin 11, and simultaneously affect the storage proportion of the 3 rd hot bin 6 and the storage proportion of the 2 nd hot bin 6, which indicates that the aggregate stored in the 3 rd cold bin 1 is finer and contains the aggregate required by the 2 nd hot bin 6, and when the storage proportion of the 3 rd hot bin 6 is lower than a first preset value and the discharge speed of the 3 nd cold bin 1 is adjusted up, if the increase speed of the storage proportion of the 2 nd hot bin 6 is greater than or equal to the increase speed of the storage proportion of the 3 rd hot bin 6, the discharge speed of the 2 nd cold bin 1 is adjusted down; when the material storage proportion of the 3 rd hot material bin 6 is higher than the second preset value, the discharging speed of the 3 rd cold material bin 1 is adjusted downwards, and if the reducing speed of the material storage proportion of the 2 nd hot material bin 6 is larger than or equal to the reducing speed of the material storage proportion of the 3 rd hot material bin 6, the discharging speed of the 2 nd cold material bin 1 is adjusted upwards. And when the storage proportion of the 3 rd hot material bin 6 reaches a target preset value, the discharging speeds of the 2 nd cold material bin 1 and the 3 rd cold material bin 1 are respectively recovered to preset speeds.
In general, the target preset value may take any value between 55% and 65% excluding 55% and 65%, and correspondingly, the first preset value may be any value between 20% and 55% including 20% and 55%; the second preset value may be any value between 65% and 90%, including 65% and 90%. Preferably, the target preset value is 60%, the first preset value is 40%, and the second preset value is 80%.
In a preferred embodiment, the discharging box of the drying drum 33 is provided with a temperature sensor for detecting aggregate temperature, the control device 8 is used for adjusting the fire power of the burner of the drying drum 3 according to the detection temperature of the temperature sensor, and in order to ensure that the material temperature is qualified, the control device is used for adjusting the fire power of the burner connected with the drying drum 33 according to the temperature by detecting the aggregate temperature at the discharging box of the drying drum 3 between the cold bin 1 and the hot bin 6, such as adjusting the fire power of the burner by frequency conversion speed regulation of an air blower, air door opening adjustment and other modes.
Example 8
As shown in fig. 5 and 6, the present invention provides an automatic batching system for an asphalt mixing plant, the asphalt mixing plant comprises N cold bins 1, a conveyor 2, a drying drum 3, a hot material elevator 4, a vibrating screen 5 and N hot bins 6, which are connected in sequence, where N is an integer greater than or equal to 2, the N cold bins 1 and the N hot bins 6 are used for storing aggregates with different particle size specifications, the average particle sizes of the aggregates stored in the 1 st cold bin 1 and the 2 nd cold bin 1 … … N cold bin 1 are sequentially increased, the average particle sizes of the aggregates stored in the 1 st hot bin 6 and the 2 nd hot bin 6 … … N hot bin 6 are sequentially increased, the 1 st cold bin 1 corresponds to the 1 st hot bin 6, the 2 nd cold bin 1 corresponds to the 2 nd hot bin 6 … … N cold bin 1 corresponds to the N hot bin 6, the automatic batching system comprises a material level detecting device 7 for detecting the material level of each hot bin 6, the control device 8 is used for controlling the execution device 9 to act according to a detection signal of the material level detection device 7, when the material level detection device 7 detects that the storage bin position of the ith hot bin 6 is lower than a first preset value, the control device 8 is used for adjusting the unloading speed of the ith cold bin 1 through the execution device 9, when the material level detection device 7 detects that the storage bin position of the ith hot bin 6 is higher than a second preset value, the control device 8 is used for adjusting the unloading speed of the ith cold bin 1 corresponding to the ith hot bin through the execution device 9, the first preset value is smaller than the second preset value, wherein i is an integer selected from 1-N, and the first preset value is smaller than the second preset value.
In the above embodiment, the material level detecting device 7 may be a material level meter, and the control device 8 may be a single chip microcomputer or a PLC programmable controller.
According to the automatic batching system of the asphalt mixing plant, the unloading speed of the cold material bin 1 corresponding to the storage bin position of each hot material bin 6 can be automatically adjusted, so that the storage bin position of the hot material bin 6 is always in a normal range, the problems of material shortage and material overflow of the hot material bin 6 are reduced or avoided, and the production capacity of equipment is ensured.
Preferably, when the material level detection device 7 detects that the storage bin level of the ith hot bin 6 is lower than a first preset value, the control device 8 is configured to adjust the discharging speed of the ith cold bin 1 up through the execution device 9, and when the storage bin level of the ith hot bin 6 reaches a target preset value, the control device 8 is configured to restore the discharging speed of the ith cold bin 1 to a preset speed through the execution device 9; when the material level detection device 7 detects that the storage bin position of the ith hot bin 6 is higher than the second preset value, the control device 8 is used for adjusting the discharging speed of the ith cold bin 1 downwards through the execution device 9, and when the storage bin position of the ith hot bin 6 reaches the target preset value, the control device 8 is used for restoring the discharging speed of the ith cold bin 1 to the preset speed through the execution device 9, and the target preset value is larger than the first preset value and smaller than the second preset value. The preset speed of the ith cold bin 1 refers to a conventional discharging speed of the ith hot bin 6, wherein the storage ratio of the ith hot bin is within a range between a first preset value and the second preset value.
More preferably, the control device 8 is configured to calculate, according to the detection data of the material level detection device 7, an increase speed or a decrease speed of the material storage positions of the i-1 th hot bin 6, the i-th hot bin 6, and the i +1 th hot bin 6, according to the possible material mixing phenomenon:
1) when the storage bin position of the ith hot bin 6 is lower than a first preset value, and the discharging speed of the ith cold bin 1 is adjusted upwards, if the increasing speed of the storage bin position of the ith-1 hot bin 6 is greater than or equal to the increasing speed of the storage bin position of the ith hot bin 6, the control device 8 is used for adjusting the discharging speed of the ith-1 cold bin 1 downwards through the execution device 9; if the increasing speed of the storage bin position of the (i + 1) th hot bin 6 is greater than or equal to the increasing speed of the storage bin position of the i th hot bin 6, the control device 8 is used for adjusting the discharging speed of the (i + 1) th cold bin 1 downwards through the execution device 9;
2) when the material storage bin position of the ith hot material bin 6 is higher than the second preset value and the discharging speed of the ith cold material bin 1 is adjusted downwards, if the reducing speed of the material storage bin position of the ith-1 hot material bin 6 is greater than or equal to the reducing speed of the material storage bin position of the ith hot material bin 6, the control device 8 is used for adjusting the discharging speed of the ith-1 cold material bin 1 upwards through the execution device 9; if the reduction speed of the storage bin position of the (i + 1) th hot bin 6 is greater than or equal to the reduction speed of the storage bin position of the (i) th hot bin 6, the control device 8 is used for adjusting the discharging speed of the (i + 1) th cold bin 1 upwards through the execution device 9.
For example, the control device 8 is configured to control the execution device 9 to act according to a detection signal of the material level detection device 7, for example, adjust the discharge speed of the 3 rd cold bin 11, and simultaneously affect the storage bin position of the 3 rd hot bin 6 and the storage bin position of the 2 nd hot bin 6, which indicates that the aggregate stored in the 3 rd cold bin 1 is finer and contains the aggregate required by the 2 nd hot bin 6, and when the storage bin position of the 3 rd hot bin 6 is lower than a first preset value and the discharge speed of the 3 rd cold bin 1 is adjusted upward, if the increase speed of the storage bin position of the 2 nd hot bin 6 is greater than or equal to the increase speed of the storage bin position of the 3 rd hot bin 6, the discharge speed of the 2 nd cold bin 1 is adjusted downward; when the material storage bin position of the 3 rd hot material bin 6 is higher than the second preset value and the discharging speed of the 3 rd cold material bin 1 is adjusted downwards, if the reducing speed of the material storage bin position of the 2 nd hot material bin 6 is larger than or equal to the reducing speed of the material storage bin position of the 3 rd hot material bin 6, the discharging speed of the 2 nd cold material bin 1 is adjusted upwards. And when the storage bin position of the 3 rd hot material bin 6 reaches a target preset value, the discharging speeds of the 2 nd cold material bin 1 and the 3 rd cold material bin 1 are respectively recovered to preset speeds.
In a preferred embodiment, the discharging box of the drying drum 33 is provided with a temperature sensor for detecting aggregate temperature, the control device 8 is used for adjusting the fire power of the burner of the drying drum 3 according to the detection temperature of the temperature sensor, and in order to ensure that the material temperature is qualified, the control device is used for adjusting the fire power of the burner connected with the drying drum 33 according to the temperature by detecting the aggregate temperature at the discharging box of the drying drum 3 between the cold bin 1 and the hot bin 6, such as adjusting the fire power of the burner by frequency conversion speed regulation of an air blower, air door opening adjustment and other modes.
Example 9
As shown in fig. 5 and 6, the invention provides an asphalt mixing plant, which comprises N cold storage bins 1, a conveyor 2, a drying roller 3, a hot material elevator 4, a vibrating screen 5, N hot storage bins 6, and an automatic batching system of the asphalt mixing plant according to any one of the above schemes.
Since the asphalt mixing plant is provided with the automatic batching system of the asphalt mixing plant, the asphalt mixing plant has all the technical effects of the automatic batching system of the asphalt mixing plant, and the details are not repeated herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides an automatic batching method of bituminous mixing plant, bituminous mixing plant includes N cold feed bin (1) and N hot feed bin (6) that are used for storing different particle size specification aggregates, N is more than or equal to 2's integer, 1 st cold feed bin (1), the average particle diameter of the aggregate that 2 nd cold feed bin (1) … … N cold feed bin (1) stored increases in proper order, 1 st hot feed bin (6), the average particle diameter of the aggregate that 2 nd hot feed bin (6) … … N hot feed bin (6) stored increases in proper order, 1 st cold feed bin (1) corresponds 1 st hot feed bin (6), 2 nd cold feed bin (1) corresponds 2 nd hot feed bin (6) … … N cold feed bin (1) corresponds N hot feed bin (6), a serial communication port, characterized in that, the automatic batching method includes the following step:
step 102: acquiring the storage amount of each hot material bin (6);
step 104: when the storage amount of the ith hot material bin (6) is lower than a first preset value, the discharging speed of the ith cold material bin (1) is adjusted upwards, and when the storage amount of the ith hot material bin (6) is higher than a second preset value, the discharging speed of the ith cold material bin (1) is adjusted downwards, wherein i is an integer selected from 1-N, and the first preset value is smaller than the second preset value;
step 106: acquiring the increasing speed or the decreasing speed of the storage amount of the i-1 th hot bin (6), the i-th hot bin (6) and the i +1 th hot bin (6):
1) when the storage amount of the ith hot bin (6) is lower than a first preset value, the unloading speed of the ith cold bin (1) is adjusted upwards, and if the increasing speed of the storage amount of the (i-1) th hot bin (6) is greater than or equal to the increasing speed of the storage amount of the ith hot bin (6), the unloading speed of the (i-1) th cold bin (1) is adjusted downwards; if the increasing speed of the storage amount of the (i + 1) th hot material bin (6) is larger than or equal to the increasing speed of the storage amount of the (i) th hot material bin (6), the discharging speed of the (i + 1) th cold material bin (1) is adjusted downwards;
2) when the storage amount of the ith hot material bin (6) is higher than a second preset value, the unloading speed of the ith cold material bin (1) is adjusted downwards, and if the reduction speed of the storage amount of the ith-1 hot material bin (6) is greater than or equal to the reduction speed of the storage amount of the ith hot material bin (6), the unloading speed of the ith-1 cold material bin (1) is adjusted upwards; and if the reduction speed of the storage amount of the (i + 1) th hot material bin (6) is greater than or equal to the reduction speed of the storage amount of the (i) th hot material bin (6), the discharging speed of the (i + 1) th cold material bin (1) is adjusted upwards.
2. The automated batching method for asphalt mixing plant according to claim 1, characterized in that:
the step 104 specifically includes:
when the storage amount of the ith hot material bin (6) is lower than a first preset value, the unloading speed of the ith cold material bin (1) is adjusted upwards, and when the storage amount of the ith hot material bin (6) reaches a target preset value, the unloading speed of the ith cold material bin (1) is restored to the preset speed; when the storage amount of the ith hot material bin (6) is higher than a second preset value, the unloading speed of the ith cold material bin (1) is adjusted downwards, and when the storage amount of the ith hot material bin (6) reaches a target preset value, the unloading speed of the ith cold material bin (1) is restored to the preset speed; the target preset value is larger than the first preset value and smaller than the second preset value.
3. The automated batching method for asphalt mixing plant according to any one of claims 1 to 2, characterized in that: the storage amount is a storage ratio or a storage position.
4. The automated batching method for asphalt mixing plant according to any one of claims 1 to 2, characterized in that: the automatic batching method comprises the following steps 108: aggregate temperature at the discharge box of the drying drum (3) between the cold bin (1) and the hot bin (6) is detected, and the firepower of a burner of the drying drum (3) is adjusted according to the aggregate temperature.
5. The utility model provides an automatic blending system of bituminous mixing plant, bituminous mixing plant includes N cold storage bin (1) and N hot storage bin (6), N is more than or equal to 2's integer, N cold storage bin (1) and N hot storage bin (6) are used for storing different particle size specification aggregates, 1 st cold storage bin (1), the average particle size of the aggregate that 2 nd cold storage bin (1) … … N cold storage bin (1) stored increases in proper order, 1 st hot storage bin (6), the average particle size of the aggregate that 2 nd hot storage bin (6) … … N hot storage bin (6) stored increases in proper order, 1 st cold storage bin (1) corresponds 1 st hot storage bin (6), 2 nd cold storage bin (1) corresponds 2 nd hot storage bin (6) … … N cold storage bin (1) corresponds N hot storage bin (6), its characterized in that: the automatic batching system comprises a control device (8), a material level detection device (7) used for detecting the storage amount of each hot bin (6), and an execution device (9) used for adjusting the unloading speed of each cold bin (1), wherein the control device (8) is used for controlling the action of the execution device (9) according to a detection signal of the material level detection device (7), when the material level detection device (7) detects that the storage amount of the ith hot bin (6) is lower than a first preset value, the control device (8) is used for adjusting the unloading speed of the ith cold bin (1) through the execution device (9), when the material level detection device (7) detects that the storage amount of the ith hot bin (6) is higher than a second preset value, the control device (8) is used for adjusting the unloading speed of the ith cold bin (1) through the execution device (9), wherein i is an integer selected from 1-N, and the first preset value is smaller than the second preset value;
the control device (8) is used for calculating and acquiring the increasing speed or the decreasing speed of the storage amount of the i-1 th hot bin (6), the i-th hot bin (6) and the i +1 th hot bin (6) according to the detection data of the material level detection device (7):
1) when the storage amount of the ith hot bin (6) is lower than a first preset value, the discharging speed of the ith cold bin (1) is adjusted upwards, and if the increasing speed of the storage amount of the ith-1 hot bin (6) is greater than or equal to the increasing speed of the storage amount of the ith hot bin (6), the control device (8) is used for adjusting the discharging speed of the ith-1 cold bin (1) downwards through the execution device (9); if the increasing speed of the storage amount of the (i + 1) th hot bin (6) is larger than or equal to the increasing speed of the storage amount of the i (1) th hot bin (6), the control device (8) is used for adjusting the discharging speed of the (i + 1) th cold bin (1) downwards through the execution device (9);
2) when the material storage amount of the ith hot material bin (6) is higher than a second preset value, and the discharging speed of the ith cold material bin (1) is adjusted downwards, if the reducing speed of the material storage amount of the ith-1 hot material bin (6) is greater than or equal to the reducing speed of the material storage amount of the ith hot material bin (6), the control device (8) is used for adjusting the discharging speed of the ith-1 cold material bin (1) upwards through the execution device (9); if the reduction speed of the storage amount of the (i + 1) th hot material bin (6) is greater than or equal to the reduction speed of the storage amount of the (i) th hot material bin (6), the control device (8) is used for adjusting the discharging speed of the (i + 1) th cold material bin (1) upwards through the execution device (9).
6. The automated batching system for asphalt mixing plants according to claim 5, characterized in that:
when the material level detection device (7) detects that the storage amount of the ith hot material bin (6) is lower than a first preset value, the control device (8) is used for adjusting the discharging speed of the ith cold material bin (1) through the execution device (9) upwards, and when the storage amount of the ith hot material bin (6) reaches a target preset value, the control device (8) is used for restoring the discharging speed of the ith cold material bin (1) to the preset speed through the execution device (9); when the material level detection device (7) detects that the storage amount of the ith hot material bin (6) is higher than a second preset value, the control device (8) is used for adjusting the discharging speed of the ith cold material bin (1) downwards through the execution device (9), and when the storage amount of the ith hot material bin (6) reaches a target preset value, the control device (8) is used for restoring the discharging speed of the ith cold material bin (1) to the preset speed through the execution device (9), and the target preset value is larger than the first preset value and smaller than the second preset value.
7. The automated batching system for asphalt mixing plants according to any one of claims 5 to 6, characterized in that: the discharging box of the drying roller (3) between the cold bin and the hot bin is provided with a temperature sensor for detecting the temperature of aggregate, and the control device (8) is used for adjusting the firepower of a burner of the drying roller (3) according to the detection temperature of the temperature sensor.
8. The utility model provides an asphalt mixing plant, includes N cold material storehouse (1), conveyer (2), drying roller (3), hot material lifting machine (4), shale shaker (5) and N hot material storehouse (6) that consecutive, its characterized in that: an automated batching system comprising an asphalt mixing plant according to any one of claims 5 to 7.
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| CN109403185B (en) * | 2018-12-10 | 2021-03-26 | 三一汽车制造有限公司 | Control method and control device for asphalt station anti-overflow and asphalt station |
| CN111553585A (en) * | 2020-04-24 | 2020-08-18 | 天津大学 | System and method for monitoring mixing quality of core wall asphalt mixture in real time |
| CN115262327B (en) * | 2022-09-27 | 2022-12-06 | 福建省铁拓机械股份有限公司 | Automatic adjusting system and adjusting method for asphalt mixing station flash |
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