CN217948666U - Cold regeneration facility of plantmix and bituminous mixing plant - Google Patents

Abstract

The utility model relates to a cold regeneration facility field provides a cold regeneration facility of plantmix. The plant-mixed cold recycling equipment comprises a cold recycling material supply device; the storage metering device is communicated with the cold recycled material supply device and comprises a first storage metering hopper and a second storage metering hopper, the first storage metering hopper is suitable for being communicated with the second storage metering hopper through a first discharging door, and the second storage metering hopper is provided with a second discharging door; in the discharging stage, the first discharging door or the second discharging door is opened independently. The cold regeneration facility of plantmix can monitor whether the cold reclaimed materials of the current batch are all put into the first storage metering hopper in the cold reclaimed material supply device, and can also monitor whether the cold reclaimed materials of the current batch are all put into the second storage metering hopper in the first storage metering hopper, so that the quantitative putting of the cold reclaimed materials is realized, and the accurate grading of the cold reclaimed materials is realized.

Description

Cold regeneration facility of plantmix and bituminous mixing plant

Technical Field

The utility model relates to a cold regeneration facility field provides a cold regeneration facility of plantmix.

Background

The cold-recycling technology for plant mixing is that the recycled asphalt pavement material is transported to a mixing plant, crushed and screened, mixed with new aggregate, active filler and water according to a certain proportion at normal temperature, and paved at normal temperature to form a pavement structure layer.

In the correlation technique, to throwing into the cold reclaimed materials in the churn mostly through the cold reclaimed materials of weighing and puting in that the storage feed bin is unloaded by the weigher, but at this in-process, because the storage has many batches of cold reclaimed materials in the storage feed bin, segregation phenomenon appears easily in inside, causes cold reclaimed materials gradation to be accurate inadequately, can't satisfy actual user demand.

SUMMERY OF THE UTILITY MODEL

The embodiment of the first aspect of the utility model provides a cold regeneration facility of plantmix can realize weighing to the accuracy of cold reclaimed material, can also realize putting in to the ration of cold reclaimed material.

The embodiment of the second aspect of the utility model provides a bituminous mixing plant is still provided.

The embodiment of the first aspect of the utility model provides a cold regeneration facility of plantmix, include:

a cold recycled material supply device;

the storage metering device is communicated with the cold recycled material supply device and comprises a first storage metering hopper and a second storage metering hopper, the first storage metering hopper is suitable for being communicated with the second storage metering hopper through a first discharging door, and the second storage metering hopper is provided with a second discharging door;

in the discharging stage, the first discharging door or the second discharging door is opened independently.

According to the utility model discloses cold regeneration facility of plantmix in plant of first aspect embodiment through communicateing cold reclaimed material feeding device and storage metering device each other, can drop into storage metering device with the cold reclaimed material among the cold reclaimed material feeding device. Through set up the first storage weighing hopper and the second storage weighing hopper that communicate with each other in storage metering device, not only can through the cold reclaimed material of first storage weighing hopper temporary storage, can also realize weighing to the cold reclaimed material that enters into in the first storage weighing hopper through first storage weighing hopper, and then can monitor whether the cold reclaimed material of current batch drops into in the cold reclaimed material feeding mechanism in the first storage weighing hopper entirely. Through setting up the second storage weighing hopper, can realize weighing to the cold reclaimed materials that enters into in the second storage weighing hopper through the second storage weighing hopper, and then can monitor whether the cold reclaimed materials of current batch all drops into the second storage weighing hopper in the first storage weighing hopper, can also realize weighing to the cold reclaimed materials by discharge in the second storage weighing hopper, realize the ration input to the cold reclaimed materials, realized the accurate gradation to the cold reclaimed materials.

According to the utility model discloses an embodiment, cold reclaimed material feeding device includes:

at least two cold recycling hoppers, wherein at least two third discharge doors are formed at the bottoms of the cold recycling hoppers;

and the at least two cold regeneration metering hoppers are arranged in one-to-one correspondence to the cold regeneration hoppers.

According to an embodiment of the utility model, cold reclaimed material feeding device is suitable for switching between first mode of operation and second mode of operation first mode of operation, at least two the third is unloaded the door and is all opened second mode of operation, one of them the third is unloaded the door and is opened.

According to the utility model discloses an embodiment, cold recycling equipment of plantmix still includes conveyor, conveyor set up in cold reclaimed material feeding device with between the first storage weighing hopper.

According to the utility model discloses an embodiment, conveyor includes:

the conveying belt is arranged below the at least two cold recycling metering hoppers;

the material inlet end of the lifting machine is connected with the material outlet end of the conveying belt, and the material outlet end of the lifting machine is connected with the first storage metering hopper.

According to the utility model discloses an embodiment, be provided with the charging conduit on the second storage weighing hopper, the second storage weighing hopper is suitable for to pass through charging conduit communicate in the low reaches device of second storage weighing hopper.

According to the utility model discloses an embodiment, cold regeneration facility of plantmix still includes spray set, spray set is suitable for right first storage weighing hopper second storage weighing hopper with at least one among the conveying pipeline sprays emollient.

According to the utility model discloses an embodiment, cold regeneration facility of plantmix still includes cold regeneration main building, follows the direction of height of cold regeneration main building is provided with upper platform and middle floor platform, the at least part of first storage weighing hopper set up in upper platform, the at least part of second storage weighing hopper set up in middle floor platform.

According to the utility model discloses an embodiment, cold recycling equipment of plantmix still includes controlling means, controlling means with cold reclaimed material feeding device with at least one communication connection among the storage metering device.

An embodiment of the second aspect of the utility model provides an asphalt mixing plant, including a mixing bowl and foretell cold regeneration facility of plantmix, the mixing bowl constitutes the low reaches device of second storage weighing hopper.

According to the utility model discloses the asphalt mixing plant that the embodiment of second aspect provided can realize weighing to the accurate of cold reclaimed materials through setting up foretell cold recycling equipment of plantmix, can also mix the regeneration additive and obtain the accurate finished product material of ratio.

The embodiment of the utility model provides an in above-mentioned one or more technical scheme, one of following technological effect has at least:

according to the utility model discloses cold regeneration facility of plantmix in plant of first aspect embodiment through communicateing cold reclaimed material feeding device and storage metering device each other, can drop into storage metering device with the cold reclaimed material among the cold reclaimed material feeding device. Through set up the first storage weighing hopper and the second storage weighing hopper that communicate with each other in storage metering device, not only can through the cold reclaimed material of first storage weighing hopper temporary storage, can also realize weighing to the cold reclaimed material that enters into in the first storage weighing hopper through first storage weighing hopper, and then can monitor whether the cold reclaimed material of current batch drops into in the cold reclaimed material feeding mechanism in the first storage weighing hopper entirely. Through setting up the second storage weighing hopper, can realize weighing the cold reclaimed material that enters into in the second storage weighing hopper through the second storage weighing hopper, and then can monitor whether the cold reclaimed material of current batch drops into the second storage weighing hopper in the first storage weighing hopper in whole, can also realize weighing by the cold reclaimed material of discharge in the second storage weighing hopper, realize the ration input to cold reclaimed material, realized the accurate gradation to cold reclaimed material.

Further, according to the utility model discloses the asphalt mixing plant that the embodiment of the second aspect provided can realize weighing to the cold reclaimed material's of plantmix precision through setting up foretell cold reclaimed equipment, can also mix the additive of regeneration and obtain the accurate finished product material of ratio.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or related technologies, the drawings required for use in the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a plant-mixed cold recycling device provided by the present invention.

Reference numerals are as follows:

100. a cold recycled material supply device; 102. a storage metering device; 104. a first storage hopper; 106. a second storage hopper; 108. a cold regeneration hopper; 110. a third discharge door; 112. a cold regeneration weighing hopper; 114. a conveyor belt; 116. a hoist; 118. a feed line; 119. a spraying device; 120. a cold regeneration main building; 122. regenerant addition device.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, a plant cold recycling device according to an embodiment of the present invention mainly includes a cold recycling material supply device 100 and a storage metering device 102; wherein the storage metering device 102 is in communication with the cold recycled material supply device 100, the storage metering device 102 comprises a first storage metering hopper 104 and a second storage metering hopper 106, the first storage metering hopper 104 is adapted to be in communication with the second storage metering hopper 106 through a first discharge gate, the second storage metering hopper 106 is provided with a second discharge gate; in the discharging stage, the first discharging door or the second discharging door is independently opened.

According to the utility model discloses cold regeneration facility of plantmix through mutually communicating cold reclaimed material feeding device 100 and storage metering device 102, can drop into the cold reclaimed material among the cold reclaimed material feeding device 100 in the storage metering device 102. By providing the first storage hopper 104 and the second storage hopper 106 in the storage and metering device 102, not only the cold recycled material can be temporarily stored in the first storage hopper 104, but also the cold recycled material entering the first storage hopper 104 can be weighed in the first storage hopper 104, so that whether all the cold recycled material of the current batch in the cold recycled material supply device 100 is fed into the first storage hopper 104 can be monitored. Through setting up second storage weighing hopper 106, can realize weighing to the cold reclaimed materials that enters into in second storage weighing hopper 106 through second storage weighing hopper 106, and then can monitor whether the cold reclaimed materials of current batch drop into second storage weighing hopper 106 in the first storage weighing hopper 104 in, can also realize weighing to the cold reclaimed materials by discharge in second storage weighing hopper 106, realize the ration input to the cold reclaimed materials, realized the accurate gradation to the cold reclaimed materials.

With continued reference to fig. 1, the cold regrind supply device 100 is used to dispense and weigh cold regrind. In the embodiment of the present invention, the cold recycling material supplying apparatus 100 includes at least two cold recycling hoppers 108 and a cold recycling weighing hopper 112 disposed corresponding to the at least two cold recycling hoppers 108 one to one.

Through setting up two at least cold regeneration hoppers 108, can drop into the cold regeneration hopper 108 of difference through the loader with the cold regeneration material of different specifications, and then can realize keeping in respectively to the cold regeneration material of different specifications, avoided the mixing of the cold regeneration material of different specifications to put in.

For example, two cold recycling hoppers 108 can be provided, and the cold recycling material can include coarse-grain aggregate and fine-grain aggregate, and during the actual use, the coarse-grain aggregate can be put into one cold recycling hopper 108, and the fine-grain aggregate can be put into the other cold recycling hopper 108. Through setting up like this, can avoid piling up to the both sides of cold recycling hopper 108 because the coarse grain diameter aggregate that the material caused is thrown to many batches among the correlation technique, the segregation phenomenon that the fine grain diameter aggregate piled up the cause to the centre of cold recycling hopper 108, and then can avoid causing the influence because segregation phenomenon is to the performance of follow-up finished product material. Meanwhile, high addition ratio feeding of cold recycled materials can be achieved.

A cold-recycling hopper 112 is provided below each cold-recycling hopper 108, and by providing a cold-recycling hopper 112 below each cold-recycling hopper 108, the mass of the cold-recycling material discharged from the cold-recycling hopper 108 can be accurately weighed, whereby the gradation accuracy of the cold-recycling material can be further improved.

In the embodiment of the present invention, at least two third discharge doors 110 are further formed at the bottom of each cold recycling hopper 108. Taking the third discharge gates 110 as an example, two third discharge gates 110 are provided at the bottom of each cold-recycling hopper 108, so that the number of the third discharge gates 110 can be selectively opened during discharging of the cold-recycling hopper 108, for example, when the cold-recycling weighing hopper 112 does not need to measure the mass of the cold-recycling material with high precision, two third discharge gates 110 can be simultaneously opened to rapidly discharge the cold-recycling material in the cold-recycling weighing hopper 112. When the cold recycling metering hopper 112 does not need to measure the quality of the cold recycling material with high precision, one of the third discharge doors 110 can be opened, so that the blanking speed of the cold recycling material in the cold recycling metering hopper 112 is easier to control, and the accurate measurement of the cold recycling material can be realized.

It can be understood that, in the embodiment of the present invention, the cold recycled material supplying apparatus 100 is adapted to switch between the first operation mode in which at least two third discharge doors 110 are all opened and the second operation mode in which one of the third discharge doors 110 is opened.

As previously described, when the cold regrind feeding device 100 is in the first operation mode, both of the third discharge doors 110 may be opened, that is, the first operation mode may represent a fast feeding mode, a rough weighing mode, or the like. When the cold recycled material supplying device 100 is in the second operation mode, one of the third discharging doors 110 may be opened, that is, the second operation mode may represent a small batch charging mode, a fine weighing mode, and the like.

In the embodiment of the present invention, the plant mixing cold recycling device further includes a compressed air supply device, the compressed air supply device can be used to provide power for the third discharging door 110 in the cold recycling material supply device 100, correspondingly, the compressed air supply device can include a third pneumatic valve for controlling the open/close state of the third discharging door 110.

In the embodiment of the present invention, the storage metering device 102 is used to realize temporary storage and weighing of the cold recycled materials. The storage metering device 102 communicates with the cold regenerant supply device 100 to receive the cold regenerant dosed by the cold regenerant supply device 100.

Referring to fig. 1, the storage metering device 102 includes a first storage metering hopper 104 and a second storage metering hopper 106 connected to each other, the first storage metering hopper 104 having a first discharge gate at the bottom thereof, the first storage metering hopper 104 and the second storage metering hopper 106 being in communication with each other when the first discharge gate is opened, and the first storage metering hopper 104 and the second storage metering hopper 106 being isolated from each other when the first discharge gate is closed.

In an embodiment of the present invention, the compressed air supply device is used for providing power for the first discharging door and the second discharging door in the storage metering device 102, and correspondingly, the compressed air supply device may include a first pneumatic valve for controlling the open/close state of the first discharging door and a second pneumatic valve for controlling the open/close state of the second discharging door.

The bottom of the second storage hopper 106 is provided with a second discharge gate, and when the second discharge gate is opened, the cold regrind in the second storage hopper 106 can be discharged to the outside of the second storage hopper 106.

When the cold recycled material is introduced from the cold recycled material supply device 100 into the first storage hopper 104, since the first storage hopper 104 has a function of weighing, it is possible to determine whether or not all of the cold recycled material introduced from the cold recycled material supply device 100 is introduced into the first storage hopper 104 by comparing the result of weighing by the first storage hopper 104 with the weight weighed by the cold recycled hopper 112.

When the first storage hopper 104 is in the discharge phase, only the first discharge door is open, and after discharge is complete, the first discharge door is closed. By so arranging, it is ensured that cold regrind entering the second storage hopper 106 is not discharged through the second discharge gate. Since the second storage hopper 106 has a weighing function, it is possible to determine whether all the cold recycled material discharged from the first storage hopper 104 enters the second storage hopper 106 by comparing the measurement result of the second storage hopper 106 with the measurement result of the first storage hopper 104.

Meanwhile, by arranging the first storage measuring hopper 104 and the second storage measuring hopper 106, whether the first storage measuring hopper 104 and the second storage measuring hopper 106 still store materials or not can be monitored in real time, if the first storage measuring hopper 104 and the second storage measuring hopper 106 are empty or the materials in the first storage measuring hopper 104 and the second storage measuring hopper 106 are insufficient, the cold recycled material can be fed into the first storage measuring hopper 104 and the second storage measuring hopper 106 through the cold recycled material supply device 100 in time, and the production continuity of the cold recycled material is ensured.

According to an embodiment of the present invention, a feeding pipe 118 is provided on the second storage hopper 106, and the second storage hopper 106 is adapted to be communicated with a downstream device of the second storage hopper 106 through the feeding pipe 118.

With continued reference to fig. 1, a feed conduit 118 is provided in the second storage hopper 106, the feed conduit 118 being adapted to communicate the second storage hopper 106 with devices downstream of the second storage hopper 106. The downstream device mentioned here may be a mixing bowl. The provision of the feed line 118 ensures that the cold recycled material discharged from the second storage hopper 106 can be fed into the mixing tank accurately.

According to an embodiment of the present invention, the plant mix cold recycling apparatus further comprises a spraying device 119, the spraying device 119 being adapted to spray a lubricant to at least one of the first storage hopper 104, the second storage hopper 106 and the feeding pipe 118.

In the embodiment of the present invention, in order to avoid the sticking of the inner wall of the first storage hopper 104, the inner wall of the second storage hopper 106, and the inner wall of the feeding pipe 118 during the actual use, the plant-mixed cold recycling device further includes a spraying device 119. The spraying device 119 may include a plurality of L-shaped nozzles, each of which is provided with an elbow, a three-way joint, and an electromagnetic valve, and by doing so, the inner wall of the first storage hopper 104, the inner wall of the second storage hopper 106, and the inner wall of the feeding pipe 118 may be sprayed with a lubricant, which may be diesel oil, at regular time by controlling the spraying device 119.

In the embodiment of the present invention, the compressed air supply device is further used for providing power for the L-shaped nozzles in the spraying device 119, and correspondingly, the compressed air supply device may include a fourth pneumatic valve for controlling the open/close state of the L-shaped nozzles.

With continued reference to fig. 1, according to an embodiment of the present invention, the plant-mixed cold recycling device further includes a cold recycling main building 120, an upper platform and a middle platform are disposed along a height direction of the cold recycling main building 120, at least a portion of the first storage hopper 104 is disposed on the upper platform, and at least a portion of the second storage hopper 106 is disposed on the middle platform.

It is understood that the cold-recycling main building 120 includes at least an upper deck for receiving the first storage hopper 104 and a middle deck for receiving the second storage hopper 106. It should be noted that, in the embodiment of the present invention, the cold regeneration main building 120 includes at least a four-story structure, that is, the cold regeneration main building 120 may include an upper-story platform, two middle-story platforms, and a bottom-story platform. Accordingly, at least part of the first storage hopper 104 may be arranged on the upper deck, one second storage hopper 106 being arranged on each intermediate deck.

In addition, in order to guarantee safety, guardrails are respectively arranged at the edges of the upper-layer platform and the middle-layer platform.

According to an embodiment of the present invention, the plant-mixed cold recycling apparatus further comprises a conveying device, which is arranged between the cold recycling material supply device 100 and the first storage hopper 104.

Referring to fig. 1, as described above, since the cold regrind supply device 100 needs to charge the cold regrind into the first storage hopper 104, a conveying device is provided between the cold regrind supply device 100 and the first storage hopper 104. The conveying means mentioned here may be a conveyor belt 114, a bucket elevator, or the like.

In the embodiment of the present invention, referring to fig. 1, the conveying device includes a conveying belt 114 and a hoisting machine 116; wherein the conveyor belt 114 is disposed below the at least two cold recycling hoppers 112; the inlet end of the elevator 116 is connected to the outlet end of the conveyor belt 114 and the outlet end of the elevator 116 is connected to the first storage hopper 104.

The conveyor belt 114 is disposed below at least two cold recycling weighing hoppers 112, and by this arrangement, the cold recycling in the cold recycling weighing hoppers 112 can be discharged and then directly fall onto the conveyor belt 114. The elevator 116 is arranged between the conveyor belt 114 and the first storage hopper 104, whereby the inlet end of the elevator 116 is connected to the outlet end of the conveyor belt 114 and the outlet end of the elevator 116 is arranged towards the first storage hopper 104.

As shown in fig. 1, a conduit may be provided between the discharge end of the elevator 116 and the first storage hopper 104 to prevent cold reclaim from overflowing during entry into the first storage hopper 104.

According to an embodiment of the present invention, the plant-mixed cold recycling device further comprises a control device, and the control device is in communication connection with at least one of the cold recycling material supply device 100 and the storage metering device 102.

In the embodiment of the present invention, the plant cold recycling device further includes a control device, the control device may be a PLC controller, the PLC controller is in communication connection with at least one of the cold recycling material supply device 100 and the storage metering device 102, and the communication connection mentioned here may be a wired connection or a wireless connection. By such an arrangement, the control device can control the cold recycled material supply device 100 to feed the storage metering device 102, and also can control the storage metering device 102 to feed materials into the mixing tank, that is, the linkage of the cold recycled material supply device 100 and the storage metering device 102 can be realized by the arrangement of the control device.

Meanwhile, it should be noted that the control device may be further in communication connection with the stirring cylinder, for example, after the mixing in the stirring cylinder is completed, the control device may send a control signal to the control device, after receiving the control signal, the control device may control the cold recycled material supply device 100 to feed the storage metering device 102, and after the feeding is completed, the control device may control the storage metering device 102 to feed the stirring cylinder. In addition, the control device can also control the spraying device 119 to perform spraying treatment on the inner wall of the first storage hopper 104, the inner wall of the second storage hopper 106, and the inner wall of the feed conduit 118.

An embodiment of the second aspect of the present invention provides an asphalt mixing plant, including a mixing tank and the above plant-mixed cold recycling apparatus, the mixing tank constitutes a downstream device of the second storage metering hopper 106.

According to the utility model discloses the asphalt mixing plant that the embodiment of second aspect provided can realize weighing to the cold reclaimed material's of plantmix precision through setting up foretell plantmix cold regeneration facility, can also mix the regeneration additive and obtain the accurate finished product material of ratio.

In the embodiment of the present invention, the asphalt mixing plant may further include a regenerant adding device 122, and the regenerant adding device 122 may be connected to the mixing tank through a pipeline.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but 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 embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A plant cold recycling apparatus, comprising:

a cold regrind supply device (100);

a storage metering device (102) in communication with the cold regrind feeding device (100), the storage metering device (102) comprising a first storage metering hopper (104) and a second storage metering hopper (106), the first storage metering hopper (104) being adapted to communicate with the second storage metering hopper (106) through a first discharge gate, the second storage metering hopper (106) being provided with a second discharge gate;

in the discharging stage, the first discharging door or the second discharging door is opened independently.

2. Plant cold recycling plant according to claim 1, characterized in that said cold recycling feed means (100) comprise:

at least two cold recycling hoppers (108), wherein at least two third discharge doors (110) are formed at the bottom of the cold recycling hoppers (108);

at least two cold recycling weighing hoppers (112) are provided in one-to-one correspondence with the cold recycling hoppers (108).

3. Plant cold recycling plant according to claim 2, wherein said cold recycling material feeding means (100) are adapted to switch between a first operation mode, in which at least two of said third discharge gates (110) are all open, and a second operation mode, in which one of said third discharge gates (110) is open.

4. Plant cold recycling apparatus according to claim 2, further comprising a conveying device arranged between the cold recycling material supply device (100) and the first storage hopper (104).

5. The plant cold recycling apparatus of claim 4, wherein the conveying device comprises:

a conveyor belt (114) disposed below the at least two cold recycling hoppers (112);

the feeding end of the lifting machine (116) is connected with the discharging end of the conveying belt (114), and the discharging end of the lifting machine (116) is connected with the first storage metering hopper (104).

6. Plant cold recycling plant according to claim 1, wherein a feeding duct (118) is provided on the second storage hopper (106), said second storage hopper (106) being adapted to communicate with devices downstream of said second storage hopper (106) through said feeding duct (118).

7. The plant cold recycling plant according to claim 6, further comprising a spraying device (119), the spraying device (119) being adapted to spray lubricant to at least one of the first storage hopper (104), the second storage hopper (106) and the feeding conduit (118).

8. Plant cold recycling plant according to any of claims 1 to 7, further comprising a cold recycling main (120), wherein an upper level platform and a middle level platform are arranged along the height direction of the cold recycling main (120), wherein at least part of the first storage hopper (104) is arranged at the upper level platform and at least part of the second storage hopper (106) is arranged at the middle level platform.

9. Plant cold recycling plant according to any of claims 1 to 7, further comprising a control device communicatively connected with at least one of said cold recycling material feeding device (100) and said storage metering device (102).

10. An asphalt mixing plant, characterized by comprising a mixing cylinder and a plant cold recycling apparatus according to any of claims 1 to 9, said mixing cylinder constituting a downstream device of said second storage hopper (106).

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