Mixing and paving unit suitable for on-site continuous operation at normal temperature

Abstract

The utility model discloses a mixing paver unit suitable for on-site continuous operation at normal temperature, which comprises a paver and a feeding vehicle group, one end of the paver is provided with a material receiving hopper, the other end of the paver is sequentially provided with a material distributing screw and a paving box, the material distributing screw is provided with a multi-shaft mixing cylinder, one side of the multi-shaft mixing cylinder is provided with a material conveying belt, and the other side of the multi-shaft mixing cylinder is provided with a material conveying belt. A powder bin is arranged above the conveying belt, and an asphalt box is connected to the powder bin; the metering addition and in-situ cold mixing and cold paving of aggregates, fillers, performance accelerators and binding materials can be realized, and the system can be applied to a new material or old material system; the device is not only suitable for large-scale high-grade pavements, but also suitable for rural highways, small-sized projects and new construction and maintenance projects which are wide in territorial area and high in plant mixing station setting cost; the device is also suitable for mixing and paving a mixture of a double-component binding material; the equipment can replace plant mixing regeneration, greatly shortens the curing time, and is movable and convenient normal-temperature mixture mixing and paving integrated equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering construction equipment, in particular to a mixing and paving machine group suitable for on-site continuous operation at room temperature. Background Art

[0002] my country currently has nearly 5 million kilometers of highways, and the primary focus of highway construction has shifted from new construction to maintenance, upgrading, and renovation. With the continued development of society and the economy, the demand for roads is not limited to increased durability. Driving safety and environmental protection have become key factors in road construction and maintenance. China's highway construction is currently experiencing rapid growth, bringing with it the task of maintaining and repairing this vast road network. The main technical methods for major and medium-sized repairs of existing asphalt pavements include milling and resurfacing and in-situ hot recycling. Milling and resurfacing produces a large amount of asphalt concrete milling material and continuously uses large quantities of new stone. In-situ hot recycling consumes a lot of energy, and the heating process causes secondary high-temperature aging of the old asphalt. Hot-mix asphalt requires a mixing plant, which increases the energy cost of the mixture and the emission of pollutants such as VOCs and dust. Furthermore, the production and transportation of hot-mix asphalt are significantly constrained in remote areas or mountainous areas where mixing plants are sparse. There is an urgent need to vigorously develop and promote cold-mix cold-paving technology. Cold mix asphalt has the advantages of energy saving and emission reduction, asphalt is not easy to age, long service life cycle, and final performance is no less than that of hot mix.

[0003] The development and advancement of cold mix and cold paving technology is conducive to energy conservation and consumption reduction, improving the construction environment, and miniaturizing and facilitating the use of construction equipment. To meet the construction needs of the new generation of ultra-thin wearing layer cold mix and cold paving processes, while also facilitating the on-site recycling of recycled asphalt material (RAP), and enabling the on-site, ambient temperature mixing of new and old asphalt, or a mixture of new and old asphalt, there is an urgent need to develop a continuous mixing and paving equipment that integrates feeding, mixing, and paving functions. This equipment, with its significant economic and social benefits, will undoubtedly strongly promote the development of my country's road construction industry. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides a mixing and paving unit suitable for on-site continuous operation at room temperature.

[0005] The utility model is realized through the following technical solutions:

[0006] A mixing and paving machine unit suitable for on-site continuous operation at room temperature comprises a paver, a material receiving hopper is provided at one end of the paver, and a material distribution screw and a paving box are provided in sequence at the other end. The unit is characterized in that: a multi-axis mixing cylinder is provided on one side of the material distribution screw, a feed belt is provided on one side of the multi-axis mixing cylinder, one end of the feed belt is connected to the mixed material inlet of the multi-axis mixing cylinder, and the other end of the feed belt is connected to the material receiving hopper; a powder silo is provided above the feed belt, the powder silo is installed on the paver, and an asphalt tank is connected to the powder silo;

[0007] A feeding vehicle group is provided on one side of the paver, which includes an aggregate dump truck, an emulsified asphalt truck, a water supply truck and a bulk powder truck;

[0008] The asphalt tank is connected to an asphalt pipeline A, which extends to the top of the multi-axis mixing cylinder. An asphalt pump A is installed on the asphalt pipeline A. The asphalt tank is connected to an asphalt pipeline B, which extends to the outlet end of the emulsified asphalt truck. An asphalt pump B is installed on the asphalt pipeline B.

[0009] A bag dust collector is provided on the top of the powder silo, and the inlet end of the bag dust collector is connected to the outlet end of the bulk powder vehicle;

[0010] A water tank A is provided on the top of the paving box, and a water supply pipe is connected to the water tank A. The water supply pipe extends above one end of the conveyor belt, and a water supply pump is installed on the water supply pipe; the water tank A is connected to the water supply vehicle through a water inlet pipe, and a self-priming water pump is installed on the water inlet pipe;

[0011] Push rollers are installed between the aggregate dump truck and the emulsified asphalt truck, between the emulsified asphalt truck and the water supply truck, and between the water supply truck and the bulk powder truck.

[0012] A material baffle is provided on one side of the material receiving hopper, a material collecting door is provided on the material baffle, and a material door plate is provided at the material collecting door in a liftable manner.

[0013] Preferably, an aggregate dump truck, an emulsified asphalt truck, a water supply truck and a bulk powder truck are sequentially arranged on one side of the paver.

[0014] Preferably, an asphalt inlet is provided above the multi-axis mixing cylinder, and one end of the asphalt pipeline A is connected to the asphalt tank, and the other end is connected to the asphalt inlet.

[0015] Preferably, a mixture outlet is provided on the other side of the multi-axis mixing cylinder, and a material distribution screw is provided at the mixture outlet.

[0016] Preferably, the asphalt tank includes an asphalt tank A and an asphalt tank B, which are respectively located on both sides of the powder silo. Two branch pipes A are provided on the asphalt pipeline A, and the two branch pipes A are respectively connected to the asphalt tank A and the asphalt tank B. Two branch pipes B are provided on the asphalt pipeline B, and the two branch pipes B are respectively connected to the asphalt tank A and the asphalt tank B.

[0017] Preferably, the asphalt pipeline A is provided with a filter A, and the asphalt pipeline B is provided with a filter B.

[0018] Preferably, the side wall of the asphalt tank A is provided with a high-level sensor and a low-level sensor.

[0019] Preferably, a conveying spiral is provided between the bottom of the powder silo and the conveying belt.

[0020] Preferably, the pushing roller fixture adopts a steel frame, movable casters are provided at the bottom of the steel frame, and rotating roller shafts are rotatably installed at both ends of the steel frame.

[0021] A screw rod is rotatably mounted on the baffle plate, and a nut matched with the screw rod is provided on the material door plate.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. Realize on-site continuous mixing and paving construction at room temperature;

[0024] 2. Realize the on-site recycling of old asphalt recycled materials, practice the circular economy, and save the cost of previous transportation and storage;

[0025] 3. A technological breakthrough was achieved by using the cold mix and cold paving process to apply recycled asphalt to the upper layer, overcoming the process bottleneck that was previously only possible through hot mix;

[0026] 4. Cold mix and cold paving, energy saving and consumption reduction, environmentally friendly and improves the construction environment;

[0027] 5. It can replace factory-mixed recycling and greatly shorten the curing time. It is a movable and convenient room-temperature mixed material mixing and paving integrated equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0029] Figure 1 It is the main view of the utility model.

[0030] Figure 2This is a structural view of the paver of the present utility model.

[0031] Figure 3 This is a structural view of the paver of the present utility model.

[0032] Figure 4 This is a view of the asphalt pipeline of the utility model.

[0033] Figure 5 This is a structural view of the material baffle of the utility model.

[0034] Figure 6 This is the front view of the push roller tooling of the utility model.

[0035] Figure 7 It is a top view of the push roller tooling of the utility model.

[0036] Figure 8 This is the main view of Example 2 of the present utility model.

[0037] Figure 9 This is the front view of the comprehensive feeding vehicle of the utility model.

[0038] In the attached figure, 1. paver, 2. feeding vehicle group, 2-1. aggregate dump truck, 2-2. emulsified asphalt truck, 2-3. water supply truck, 2-4. bulk powder truck, 2-5. push roller tooling, 2-5-1. steel frame, 2-5-2. casters, 2-5-3. self-rotating roller shaft, 2-6. integrated feeding vehicle, 3. paving box, 4. material distribution screw, 5. multi-axis mixing cylinder, 5-1. mixture inlet, 5-2. asphalt inlet, 5-3. mixture outlet, 6. feeding belt, 7. receiving hopper, 8. asphalt tank A, 9. asphalt tank B, 10. powder silo , 11. Asphalt pipeline A, 12. Asphalt pump A, 13. Filter A, 14. Asphalt pipeline B, 15. Asphalt pump B, 16. Filter B, 17. High-level sensor, 18. Low-level sensor, 19. Conveying screw, 20. Bag dust collector, 21. Material baffle, 22. Rubber sheet, 23. Material door plate, 24. Screw, 25. Water supply port, 26. Water tank A, 27. Water supply pump, 28. Self-priming water pump, 29. Allow-through gap, 30. Turning space, 31. Asphalt tank, 32. Water tank B, 33. Bulk powder tank, 34. Feed hose. DETAILED DESCRIPTION

[0039] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0041] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, if the device in the figures is inverted, an element described as being "below" another element or feature would be positioned "above" the other element or feature. Thus, the exemplary term "below" can encompass both above and below orientations.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0043] The present invention will be described in detail below with reference to the accompanying drawings:

[0044] Example 1:

[0045] The utility model is a mixing and paving machine unit suitable for on-site continuous operation at room temperature, comprising a paver 1, a receiving hopper 7 being provided at one end of the paver 1, and a material distribution screw 4 and a paving box 3 being provided in sequence at the other end, characterized in that: a multi-axis mixing cylinder 5 is provided on one side of the material distribution screw 4, a feed belt 6 is provided on one side of the multi-axis mixing cylinder 5, one end of the feed belt 6 is connected to a mixed material inlet 5-1 of the multi-axis mixing cylinder 5, and the other end of the feed belt 6 is connected to the receiving hopper 7; a powder silo 10 is provided above the feed belt 6, the powder silo 10 is installed on the paver 1, and an asphalt tank is connected to the powder silo 10;

[0046] A feeding vehicle group 2 is provided on one side of the paver 1, and the feeding vehicle group 2 includes an aggregate dump truck 2-1, an emulsified asphalt truck 2-2, a water supply truck 2-3 and a bulk powder truck 2-4;

[0047] The asphalt tank is connected to an asphalt pipeline A11, which extends to the top of the multi-axis mixing cylinder 5. An asphalt pump A12 is installed on the asphalt pipeline A11, and the asphalt pump A12 is installed at the bottom of the asphalt tank A. The asphalt tank is connected to an asphalt pipeline B14, which extends to the outlet end of the emulsified asphalt truck 2-2. An asphalt pump B15 is installed on the asphalt pipeline B14, and the asphalt pump B15 is installed at the bottom of the asphalt tank B9.

[0048] A bag dust collector 20 is provided on the top of the powder silo 10, and the inlet end of the bag dust collector 20 is connected to the outlet end of the bulk powder vehicle 2-4;

[0049] To prevent the emulsified asphalt from breaking down too quickly, a water tank A26 is installed on top of the paving box 3. A water supply pipe is connected to the water tank A26. The water supply pipe extends to the water supply port 25 above one end of the conveyor belt 6. A water supply pump 27 is installed on the water supply pipe. The water tank A26 is connected to the water supply truck 2-3 via a water inlet pipe. A self-priming water pump 28 is installed on the water inlet pipe.

[0050] A push roller 2-5 is provided between the aggregate dump truck 2-1 and the emulsified asphalt truck 2-2, between the emulsified asphalt truck 2-2 and the water supply truck 2-3, and between the water supply truck 2-3 and the bulk powder truck 2-4. The push roller 2-5 is used to receive and transmit the thrust during the forward or backward movement of the feeding truck group 2, so that the whole group moves synchronously.

[0051] A baffle plate 21 is provided on one side of the receiving hopper 7, and a material collecting gate is provided at the lower part of the middle position of the baffle plate 21. A material gate plate 23 is provided at the material collecting gate in a liftable manner. The lifting and lowering of the material gate plate 23 can adjust the clearance 29 between the bottom of the material gate plate 23 and the top part of the conveyor belt 6, thereby realizing the control of the aggregate conveying amount.

[0052] On one side of the paver 1 are arranged in sequence an aggregate dump truck 2-1, an emulsified asphalt truck 2-2, a water supply truck 2-3 and a bulk powder truck 2-4, which are all commercially available models.

[0053] An asphalt inlet 5 - 2 is provided above the multi-axis mixing cylinder 5 , and one end of an asphalt pipeline A11 is connected to the asphalt tank, and the other end is connected to the asphalt inlet 5 - 2 .

[0054] A mixture outlet 5 - 3 is provided on the other side of the multi-axis mixing cylinder 5 , and a material distribution screw 4 is provided at the mixture outlet 5 - 3 . The mixture outlet 5 - 3 is located above and to the side of the material distribution screw 4 .

[0055] The asphalt tank includes asphalt tank A8 and asphalt tank B9, which are respectively located on both sides of the powder silo 10. Two branch pipes A are provided on the asphalt pipeline A11, and the two branch pipes A are respectively connected to the asphalt tank A8 and the asphalt tank B9. Two branch pipes B are provided on the asphalt pipeline B14, and the two branch pipes B are respectively connected to the asphalt tank A8 and the asphalt tank B9.

[0056] The asphalt pipeline A11 is provided with a filter A13, which is located at the inlet end of the asphalt pump A12. The asphalt pipeline B14 is provided with a filter B16, which is located between the emulsified asphalt truck 2-2 and the asphalt pump B15.

[0057] The side walls of the asphalt tank A8 are provided with a high-level sensor 17 and a low-level sensor 18, which are preferably liquid level sensors. The high-level sensor 17 and the low-level sensor are interlocked with the asphalt pump B. When the liquid level in the asphalt tank is lower than the low-level sensor 18, the asphalt pump B is controlled to start to ensure the continuous supply of asphalt in the asphalt tank. When the liquid level in the asphalt tank reaches the high-level sensor 17, the asphalt pump B is controlled to stop working.

[0058] A conveying screw 19 is provided between the bottom of the powder bin 10 and the conveying belt 6 , and the amount of the conveyed powder is measured by controlling the rotation speed of the conveying screw 19 .

[0059] The push roller tooling 2-5 adopts a steel frame 2-5-1, and a movable caster 2-5-2 is provided at the bottom of the steel frame 2-5-1. Self-rotating roller shafts 2-5-3 are rotatably installed at both ends of the steel frame 2-5-1, and the front and rear self-rotating roller shafts 2-5-3 are respectively connected to the rear wheels of the front vehicle and the front wheels of the rear vehicle; during the construction process, the aggregate dump truck 2-1, the emulsified asphalt truck 2-2, the water supply truck 2-3, the bulk powder truck 2-4 and the corresponding push roller tooling 2-5 together form a whole, and in the neutral state, they move forward as a whole under the thrust of the paver 1.

[0060] A screw rod 24 is rotatably mounted on the material blocking plate 21 , and a nut matched with the screw rod 24 is provided on the material door plate 23 .

[0061] The middle of the bottom of the receiving hopper 7 is an opening that cooperates with the conveyor belt 6. Side buckets are hinged on both sides of the opening. The side buckets can accumulate the aggregate to the middle by rotation to facilitate discharge. Rubber plates 22 are provided between the side buckets and the material blocking plate 21 to achieve sealing.

[0062] The multi-axis mixing cylinder 5, feed belt 6, asphalt pump A12 and asphalt pump B15 are all hydraulically driven, taking power from the original paver 1, that is, the hydraulic station; the conveying screw 19, water supply pump 27, self-priming water pump 28 and the induced draft fan and air compressor for the bag dust collector 20 are all motor-driven, taking power from the original paver 1, that is, the generator.

[0063] Mixing Ratio Description: Before construction, the powder, asphalt, and aggregate delivery rates must be calibrated separately based on the required asphalt-to-aggregate (asphalt-to-aggregate ratio) and powder-to-aggregate (powder-to-stone ratio). This calibrates the speeds of the powder conveyor auger 19, asphalt pump A12, and conveyor belt 6. Once calibrated, the material gate 23 remains unchanged, and the let-through gap 29 remains fixed. Ideally, the paver 1 travels at a constant speed, with each module operating at its pre-calibrated speed. In actual operation, if parameters require adjustment based on the material accumulation status of the distributor auger 4, simply adjust the speed of the conveyor belt 6 in the operating system to achieve proportional adjustments between the modules. Specifically, the aggregate let-through gap 29 remains unchanged, and changes in the conveyor belt 6 speed can be used to derive changes in delivery rate. Based on the pre-set asphalt-to-aggregate and powder-to-stone ratios, the system calculates the required asphalt and powder quantities after adjustment, and thus infers the required operating speeds for the powder conveyor auger 19 and asphalt pump A12.

[0064] Vehicle Replacement Instructions: Of the four types of feeder trucks in feeder assembly 2, aggregate dump truck 2-1 is replaced far more frequently than the other three types. For example, if aggregate dump truck 2-1 needs to be replaced during construction, the three feeder trucks in the front must move forward to make room for the full aggregate dump truck 2-1, while also leaving space for the empty aggregate dump truck 2-1 to exit. After the empty aggregate dump truck 2-1 has departed, the four front trucks reverse back to the docking station with paver 1. The same method is used for replacing other types of vehicles. During the vehicle swap, the docking line between paver 1 and feeder assembly 2 is temporarily disconnected. Paver 1 continues operating during the swap. The media levels in the asphalt tank, powder silo 10, water tank A26, and hopper 7 meet the construction requirements between vehicle swaps.

[0065] Example 2:

[0066] On the basis of retaining the main frame and process of Example 1, only the feeding modes of emulsified asphalt, water and bulk powder in the feeding vehicle group 2 are replaced, and the functions of the emulsified asphalt vehicle 2-2, the water supply vehicle 2-3 and the bulk powder vehicle 2-4 are integrated into a comprehensive feeding vehicle 2-6, which is equipped with an asphalt tank 31, a water tank B32 and a bulk powder tank 33. The docking ports are all set at the rear of the vehicle body and docked with the corresponding nozzle hose 34 of the paver 1; the comprehensive feeding vehicle 2-6 and the aggregate dump truck are connected. A turning space 30 is left between 2-1 to meet the needs of replacing the aggregate dump truck 2-1, that is, during the replacement of the aggregate dump truck 2-1, the material delivery hose 34 between the integrated feeding truck 2-6 and the paver 1 does not need to be disconnected; further, the integrated feeding truck 2-6 adopts a self-propelled operation mode, which avoids the cumbersome docking of the push roller tooling 2-5 and reduces the driving pressure of the paver 1; compared with Example 1, this embodiment has enhanced flexibility and relatively reduced equipment scale, and is more suitable for some small projects.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A mixing and paving machine unit suitable for continuous on-site operation at room temperature, comprising a paver (1), wherein one end of the paver (1) is provided with a receiving hopper (7), and the other end is provided with a material distribution screw (4) and a paving box (3) in sequence, characterized in that: A multi-axis mixing cylinder (5) is provided on one side of the material distribution screw (4), and a feeding belt (6) is provided on one side of the multi-axis mixing cylinder (5). One end of the feeding belt (6) is connected to the mixed material inlet (5-1) of the multi-axis mixing cylinder (5), and the other end of the feeding belt (6) is connected to the receiving hopper (7); a powder bin (10) is provided above the feeding belt (6), and the powder bin (10) is installed on the paver (1), and an asphalt tank is connected to the powder bin (10); A material supply vehicle group (2) is provided on one side of the paver (1), and the material supply vehicle group (2) comprises an aggregate dump truck (2-1), an emulsified asphalt truck (2-2), a water supply truck (2-3), and a bulk powder truck (2-4); The asphalt tank is connected to an asphalt pipeline A (11), which extends to the top of the multi-axis mixing cylinder (5). An asphalt pump A (12) is installed on the asphalt pipeline A (11). The asphalt tank is connected to an asphalt pipeline B (14), which extends to the outlet end of the emulsified asphalt truck (2-2). An asphalt pump B (15) is installed on the asphalt pipeline B (14). A bag dust collector (20) is provided on the top of the powder bin (10), and the inlet end of the bag dust collector (20) is connected to the outlet end of the bulk powder vehicle (2-4); A water tank A (26) is provided on the top of the paving box (3), a water supply pipe is connected to the water tank A (26), the water supply pipe extends to the top of one end of the conveyor belt (6), and a water supply pump (27) is installed on the water supply pipe; the water tank A (26) is connected to the water supply vehicle (2-3) through a water inlet pipe, and a self-priming water pump (28) is installed on the water inlet pipe; A push roller tooling (2-5) is provided between the aggregate dump truck (2-1) and the emulsified asphalt truck (2-2), between the emulsified asphalt truck (2-2) and the water supply truck (2-3), and between the water supply truck (2-3) and the bulk powder truck (2-4); A material baffle plate (21) is provided on one side of the receiving hopper (7), a material collecting door is provided on the material baffle plate (21), and a material door plate (23) is provided at the material collecting door in a manner that can be raised or lowered.

2. The mixing and paving unit suitable for on-site continuous operation at room temperature according to claim 1, characterized in that: An aggregate dump truck (2-1), an emulsified asphalt truck (2-2), a water supply truck (2-3) and a bulk powder truck (2-4) are sequentially arranged on one side of the paver (1).

3. The mixing and paving unit suitable for on-site continuous operation at room temperature according to claim 1, characterized in that: An asphalt inlet (5-2) is provided above the multi-axis mixing cylinder (5); one end of an asphalt pipeline A (11) is connected to the asphalt tank, and the other end is connected to the asphalt inlet (5-2).

4. The mixing and paving unit suitable for on-site continuous operation at room temperature according to claim 1, characterized in that: A mixture outlet (5-3) is provided on the other side of the multi-axis mixing cylinder (5), and a material distribution screw (4) is provided at the mixture outlet (5-3).

5. The mixing and paving unit suitable for on-site continuous operation at room temperature according to claim 1, characterized in that: The asphalt tank comprises an asphalt tank A (8) and an asphalt tank B (9), which are respectively located on both sides of a powder silo (10). Two branch pipes A are provided on an asphalt pipeline A (11), and the two branch pipes A are respectively connected to the asphalt tank A (8) and the asphalt tank B (9). Two branch pipes B are respectively provided on an asphalt pipeline B (14), and the two branch pipes B are respectively connected to the asphalt tank A (8) and the asphalt tank B (9).

6. The mixing and paving unit suitable for on-site continuous operation at room temperature according to claim 1, characterized in that: The asphalt pipeline A (11) is provided with a filter A (13), and the asphalt pipeline B (14) is provided with a filter B (16).

7. The mixing and paving unit suitable for on-site continuous operation at room temperature according to claim 5, characterized in that: A high-level sensor (17) and a low-level sensor (18) are provided on the side wall of the asphalt tank A (8).

8. The mixing and paving unit suitable for on-site continuous operation at room temperature according to claim 1, characterized in that: A conveying screw (19) is provided between the bottom of the powder bin (10) and the conveying belt (6).

9. The mixing and paving unit suitable for on-site continuous operation at room temperature according to claim 1, characterized in that: The push roller tooling (2-5) adopts a steel frame (2-5-1), the bottom of the steel frame (2-5-1) is provided with movable casters (2-5-2), and both ends of the steel frame (2-5-1) are rotatably installed with rotating roller shafts (2-5-3).

10. The mixing and paving unit suitable for on-site continuous operation at room temperature according to claim 1, characterized in that: A screw rod (24) is rotatably mounted on the material blocking plate (21), and a nut matched with the screw rod (24) is provided on the material door plate (23).

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