CN213239168U - Metering scale of plant mixing heat regeneration equipment - Google Patents
Metering scale of plant mixing heat regeneration equipment Download PDFInfo
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- CN213239168U CN213239168U CN202022231593.6U CN202022231593U CN213239168U CN 213239168 U CN213239168 U CN 213239168U CN 202022231593 U CN202022231593 U CN 202022231593U CN 213239168 U CN213239168 U CN 213239168U
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Abstract
A metering scale of plant mixing heat regeneration equipment comprises a scale body, a sealing cover, a porous plate and a negative pressure air suction mechanism, wherein a metering cavity for heat supply regeneration materials and cold regeneration materials to enter is formed in the scale body; the sealing cover is arranged at the upper end of the scale body and used for sealing the metering cavity, and a hot material port for heat supply reclaimed materials to enter and a cold material port for cold supply reclaimed materials to enter are arranged on the sealing cover; the porous plate is arranged in the metering cavity, and a gas collecting cavity is formed between the porous plate and the sealing cover; negative pressure air suction mechanism is connected with the gas collection chamber, the gaseous discharge of gathering in the gas collection chamber, in operation, cold regeneration material gets into the measurement chamber that is equipped with hot regeneration material when carrying out the weighing, during cold and hot contact, a large amount of vapor of production passes through the perforated plate and gets into the gas collection chamber, discharge through negative pressure air suction mechanism, cold regeneration material and hot regeneration material get into the gas that the measurement chamber produced simultaneously also can be discharged through negative pressure air suction mechanism, in order to guarantee the steady measurement of measurement balance, avoid rocking the interference, thereby effectively guarantee the measurement accuracy.
Description
Technical Field
The utility model belongs to the technical field of the hot recycling equipment of plantmix, concretely relates to hot recycling equipment's of plantmix weigher.
Background
The main process flow of the plant-mixing hot recycling equipment for the asphalt mixture is as follows: delivering, lifting, drying, heating, storing, metering and conveying the reclaimed materials to a primary stirring cylinder to mix with new aggregate, powder and asphalt according to a certain grading requirement, and finally forming a qualified asphalt mixture. The control of the amount of the reclaimed materials needing to be added in each period is realized through a metering scale, and the metering precision determines the quality of the final asphalt mixture finished product.
In the prior art, the regenerated coarse materials need to be dried and heated for reuse, and the fine materials are easy to age in the drying and heating process due to fast heat absorption, and are usually put into a cold feeding mode, namely are directly measured without heating and then are put into a stirring cylinder for use. In the prior art, two weighing scales are adopted to respectively measure hot materials and cold materials, and then the hot materials and the cold materials are respectively put into a stirring cylinder through a special chute. The structure has higher cost, large occupied space and more overhauling working points, and is not beneficial to production
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming of prior art, providing a hot regeneration facility's of plantmix weigher.
The utility model adopts the following technical scheme:
a metering scale of plant mixing heat regeneration equipment comprises a scale body, a sealing cover, a porous plate and a negative pressure air suction mechanism, wherein a metering cavity for heat supply regeneration materials and cold regeneration materials to enter is formed in the scale body; the sealing cover is arranged at the upper end of the scale body and used for sealing the metering cavity, and a hot material port for heat supply reclaimed materials to enter and a cold material port for cold supply reclaimed materials to enter are arranged on the sealing cover; the porous plate is arranged in the metering cavity, and a gas collecting cavity is formed between the porous plate and the sealing cover; the negative pressure suction mechanism is connected with the gas collecting cavity and discharges the gas collected in the gas collecting cavity.
Furthermore, the negative pressure air suction mechanism comprises an air outlet and a negative pressure piece, wherein the air outlet is formed in the outer wall of the scale body and is communicated with the air collection cavity, and the negative pressure piece is connected with the air outlet.
Further, the negative pressure piece is a negative pressure fan.
Furthermore, the perforated plate comprises a plate body and a plurality of abdicating holes uniformly distributed on the plate body, wherein the diameters of the abdicating holes are smaller than the particle sizes of the hot reclaimed material and the cold reclaimed material; the hot material port extends downwards from the top of the sealing cover along the vertical direction to be communicated with the metering cavity.
Furthermore, an access door is arranged on the sealing cover.
Furthermore, the scale body includes the casing, sets up the antiseized welt at the shells inner wall and sets up the heat preservation at the shells outer wall.
The scale further comprises a controller, wherein a weight sensor connected with the controller is arranged on the scale body, and the weight sensor is used for weighing the entering hot reclaimed materials and cold reclaimed materials and feeding back signals to the controller.
Furthermore, the weight sensors are arranged in a plurality, and the plurality of weight sensors are circumferentially distributed on the scale body.
It can be known from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are: the sealing cover is provided with a hot material port and a cold material port, the entering hot reclaimed materials and cold reclaimed materials can be accumulated and metered, two metering scales are not needed for weighing, the production cost is reduced, the metering cavity is internally provided with a porous plate, a gas collecting cavity is formed between the porous plate and the sealing cover, when the cold reclaimed materials enter the metering cavity filled with the hot reclaimed materials for weighing, during cold and hot contact, a large amount of generated vapor enters the gas collecting cavity through the porous plate and is discharged through a negative pressure suction mechanism, and meanwhile, the gas generated when the cold reclaimed materials and the hot reclaimed materials enter the metering cavity can also be discharged through the negative pressure suction mechanism, so that the metering scales can be metered stably, the shaking interference is avoided, and the metering precision is effectively ensured;
the perforated plate includes the plate body and a plurality of hole of stepping down, and a plurality of hole evenly distributed of stepping down just is less than the particle diameter of cold regeneration material, hot regeneration material on the plate body, and the even setting in hole of stepping down can effectual reduction because the negative pressure centralizes the effect, and it is inhomogeneous to lead to the air current in the weigher, prevents that local air current is too fast for the weigher produces and rocks and siphons away the cold regeneration material in the balance easily, influences the measurement accuracy.
Drawings
Fig. 1 is a first schematic structural diagram of the present invention;
fig. 2 is a first schematic structural diagram of the present invention;
FIG. 3 is a sectional view of the structure of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is a top view of FIG. 1;
in the figure, 1-scale body, 2-sealing cover, 3-perforated plate, 4-negative pressure air suction mechanism, 5-weight sensor, 11-metering cavity, 12-discharge opening, 13-gas collecting cavity, 14-shell, 15-antiskid lining plate, 16-heat insulating layer, 21-hot material opening, 22-cold material opening, 23-access door, 31-plate body, 32-abdicating hole and 41-exhaust opening.
Detailed Description
The present invention will be further described with reference to the following detailed description.
Referring to fig. 1 to 5, the weighing scale of the plant mixing heat regeneration equipment comprises a scale body 1, a sealing cover 2, a porous plate 3, a negative pressure suction mechanism 4, a weight sensor 5 and a controller.
The scale body 1 is internally provided with a metering cavity 11 for feeding heat supply reclaimed materials and cold reclaimed materials, the bottom of the metering cavity is provided with a discharge hole 12 for discharging the heat supply reclaimed materials and the cold reclaimed materials, specifically, the scale body 1 comprises a shell 14, a lining plate 15 arranged on the inner wall of the shell 14 and a heat insulation layer 16 arranged on the outer wall of the shell 14, and the heat loss of the heat reclaimed materials when the metering scale weighs the cold reclaimed materials is reduced by the heat insulation layer 16; further, the scale body 1 is in a shape of a circular truncated cone with a large upper part and a small lower part.
Sealed lid 2 sets up and is used for sealed measurement chamber 11 in balance body 1 upper end, is provided with the hot material mouth 21 that the heat supply reclaimed material got into on it, the cold material mouth 22 that the heat supply reclaimed material got into and is used for the access door 23 of overhauing, and is concrete, and hot material mouth 21 and cold material mouth 22 are arranged along the radial interval of balance body 1, and access door 23 is provided with two, and two access doors 23 symmetry set up in hot material mouth 21 both sides, and is further, and the bore of hot material mouth 21 is greater than the bore of cold material mouth 22.
The porous plate 3 is arranged in the metering cavity 11, a gas collecting cavity 13 is formed between the porous plate 3 and the sealing cover 2, the porous plate comprises a plate body 31 and a plurality of abdicating holes 32 which are uniformly distributed on the plate body 31, the diameters of the abdicating holes 32 are smaller than the particle diameters of the hot reclaimed material and the cold reclaimed material, and specifically, the hot material port 21 extends downwards from the top of the sealing cover 2 along the vertical direction to penetrate through the porous plate 3 to be communicated with the metering cavity 11 and not communicated with the gas collecting cavity 13; the cold material port 22 extends downwards from the top of the sealing cover 2 along the vertical direction to penetrate through the porous plate 3 to be communicated with the metering cavity 11 and not communicated with the gas collecting cavity 13; when the hot recycled material and the cold recycled material enter the metering cavity 11, gas can be generated to disturb air in the metering cavity 11, and when the hot recycled material and the cold recycled material are superposed and accumulated, water in the cold recycled material is instantly gasified when the cold recycled material is contacted with the hot recycled material, so that a large amount of water vapor can be generated; through setting up perforated plate 3, vapor and the gas that produce in the measurement chamber 11 can get into gas collection chamber 13 through the hole of stepping down 32 and discharge through negative pressure suction mechanism 4 again, prevent to influence the measurement accuracy of weigher.
The negative pressure air suction mechanism 4 is connected with the gas collection cavity 13, discharges the gas collected in the gas collection cavity 13, and comprises an exhaust port 41 arranged on the outer wall of the scale body 1 and communicated with the gas collection cavity 13 and a negative pressure piece (not shown in the figure) connected with the exhaust port 41, specifically, the negative pressure piece can be a negative pressure fan or other equipment capable of realizing negative pressure effect, and the negative pressure fan can be connected with the exhaust port 41 through a negative pressure air pipe (not shown in the figure); through setting up negative pressure air suction mechanism 4, at the in-process of measurement reworked material, the gas that produces in the measurement chamber 11 is in time, even discharge under the effect of negative pressure spare to guarantee at whole measurement in-process, the measurement balance realizes steady measurement, avoids rocking the interference, thereby effectively guarantees the measurement precision.
The weight sensors 5 are arranged on the scale body 1 and used for detecting the weight of hot reclaimed materials and cold reclaimed materials entering the metering cavity 11, specifically, the weight sensors 5 are three, and the three weight sensors 5 are circumferentially distributed on the scale body 1.
The controller is connected with a plurality of weight sensors 5, processes signals fed back by the weight sensors 5 to determine the weight of the hot reclaimed materials and the cold reclaimed materials entering the metering cavity 11, and is specifically a PLC (programmable logic controller).
When the device works, according to the grading requirement, firstly, hot recycled materials enter the metering cavity 11 through the hot material opening 21 to be weighed, and the working power of the negative pressing piece is controlled, so that gas generated in the feeding process is discharged through the exhaust port 41; after the weight of hot reclaimed material reaches required requirement, cold reclaimed material measures in getting into measurement chamber 11 through cold material mouth 22, when cold reclaimed material gets into measurement chamber 11, produce a large amount of vapor with the contact of hot reclaimed material (hot reclaimed material is after the stoving heating, the water content is low, and the moisture content is higher in the cold reclaimed material, when cold reclaimed material meets hot reclaimed material, moisture in the cold reclaimed material vaporizes in the twinkling of an eye, produce a large amount of vapor), vapor is under the effect of negative pressure member, get into gas collection chamber 13 through perforated plate 3, join in marriage out the weigher through gas vent 41 again, guarantee the measurement accuracy of weigher.
This device overall structure is simple, guarantees under the circumstances of weigher measurement accuracy through the cooperation of negative pressure suction mechanism 4 and perforated plate 3, can weigh hot reclaimed material and cold reclaimed material, need not to reduce the cost of generation to the weigher that hot reclaimed material and cold reclaimed material design correspond.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited thereby, and all equivalent changes and modifications made within the scope of the claims and the specification should be considered within the scope of the present invention.
Claims (8)
1. The utility model provides a weigher of hot regeneration facility of plantmix which characterized in that: the device comprises a scale body, a sealing cover, a porous plate and a negative pressure suction mechanism, wherein a metering cavity for heat supply reclaimed materials and cold reclaimed materials to enter is formed in the scale body; the sealing cover is arranged at the upper end of the scale body and used for sealing the metering cavity, and a hot material port for heat supply reclaimed materials to enter and a cold material port for cold supply reclaimed materials to enter are arranged on the sealing cover; the porous plate is arranged in the metering cavity, and a gas collecting cavity is formed between the porous plate and the sealing cover; the negative pressure suction mechanism is connected with the gas collecting cavity and discharges the gas collected in the gas collecting cavity.
2. The metering scale of a plant-mix thermal reclamation apparatus as recited in claim 1, wherein: the negative pressure air suction mechanism comprises an air outlet and a negative pressure piece, wherein the air outlet is formed in the outer wall of the scale body and communicated with the air collecting cavity, and the negative pressure piece is connected with the air outlet.
3. The metering scale of a plant-mix thermal reclamation apparatus as recited in claim 2, wherein: the negative pressure piece is a negative pressure fan.
4. The metering scale of a plant-mix thermal reclamation apparatus as recited in claim 1, wherein: the perforated plate comprises a plate body and a plurality of abdicating holes uniformly distributed on the plate body, wherein the diameters of the abdicating holes are smaller than the particle sizes of the hot reclaimed material and the cold reclaimed material; the hot material port extends downwards from the top of the sealing cover along the vertical direction to be communicated with the metering cavity.
5. The metering scale of a plant-mix thermal reclamation apparatus as recited in claim 1, wherein: an access door is arranged on the sealing cover.
6. The metering scale of a plant-mix thermal reclamation apparatus as recited in claim 1, wherein: the scale body comprises a shell, an anti-sticking lining plate arranged on the inner wall of the shell and a heat-insulating layer arranged on the outer wall of the shell.
7. The metering scale of a plant-mix thermal reclamation apparatus as recited in claim 1, wherein: the scale body is provided with a weight sensor connected with the controller, and the weight sensor is used for weighing the entering hot reclaimed materials and cold reclaimed materials and feeding back signals to the controller.
8. The metering scale of a plant-mix thermal reclamation apparatus as recited in claim 7, wherein: the weighing device is characterized in that the weighing sensors are arranged in a plurality of numbers, and the weights are distributed on the scale body in a circumferential mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022231593.6U CN213239168U (en) | 2020-10-09 | 2020-10-09 | Metering scale of plant mixing heat regeneration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022231593.6U CN213239168U (en) | 2020-10-09 | 2020-10-09 | Metering scale of plant mixing heat regeneration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213239168U true CN213239168U (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022231593.6U Active CN213239168U (en) | 2020-10-09 | 2020-10-09 | Metering scale of plant mixing heat regeneration equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN213239168U (en) |
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2020
- 2020-10-09 CN CN202022231593.6U patent/CN213239168U/en active Active
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