Multi-stage environment-friendly device of in-situ remixer

Abstract

The utility model relates to a multistage environment-friendly device of an in-situ remixer, which is characterized in that a front environment-friendly device (1) is fixedly arranged above the front side of a collecting feeder I (2), the front environment-friendly device (1) is communicated with a bottom stirring device (3), a discharge covering device (4) is fixedly arranged on the rear vertical surface of the bottom stirring device (3) through bolts, and the discharge covering device (4) and an environment-friendly opening device (5) are hermetically arranged; the environment-friendly opening device (5) is hinged to the front vertical face of the second collecting feeder (6), the rear vertical face of the second collecting feeder (6) is fixedly connected with an inlet of the inclined lifting device (7), the environment-friendly device (8) is fixed to the inclined vertical face of the inclined lifting device (7) in a bolt mode, and the two ends of the flexible connection sealing device (9) are fixed to an outlet of the inclined lifting device (7) and an inlet of the overhead stirring device (10) respectively. Flue gas at the feeding port can be effectively treated, meanwhile, sealing performance is improved, heat efficiency is improved, and the environmental protection problem can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of road maintenance equipment, in particular to a multi-stage environmental protection device for an in-situ remixing machine. Background Technique

[0002] The remixing machine is the main machine of the in-situ hot recycling complete set of equipment, and it is an asphalt pavement maintenance equipment with functions such as heating, loosening, adding new asphalt mixture, lifting materials, and stirring. The environmental protection performance has gradually become the direct evaluation of the construction environment of the unit, and even in some places, it is a necessary condition for whether construction can be carried out. The mixing devices on the market have the following defects: 1. There is no environmental protection device at the feeding port, resulting in a large amount of smoke escaping from the feeding port, and the environmental protection problem is prominent; 2. There is a large gap between the environmental protection device and the inclined material lifting device, which is an open heating method, with low heating efficiency and a large amount of smoke generated, resulting in relatively serious environmental protection problems. The above problems can no longer meet the requirements of high standards and high quality for the maintenance of modern asphalt pavements (especially expressways and municipal roads).

[0003] At present, the utility model with the patent number CN206887702U discloses a flue gas treatment structure for a heating remixing machine, including a purification and filtration box, a sealed dust suction hood, and a suction air pipe. A suction fan and a dust removal filter are arranged inside the purification and filtration box, and an electric control box is connected to the left side of the dust removal filter. The sealed dust suction hood is connected to the purification and filtration box through a guide air pipe. A diversion plate is installed on the suction hood, and a suction plate is arranged in front of the suction hood. A suction fan and a purification and filtration box are fixed to the upper left side of the mixer, and the mixer is connected to the inside of the sealed dust suction hood. A lifter is installed on the right side of the mixer. This flue gas treatment structure for the heating remixing machine has a reasonable structure. With the setting of the suction fan, the waste gas generated during processing enters the purification and filtration box through the dust suction hood by the guide air pipe, enhancing the suction force and directivity of the suction port, avoiding a large amount of smoke being discharged into the air, avoiding air pollution, being able to better carry out the operation of the remixing machine, and promoting the development of the heating remixing machine industry. However, the main idea of this application scheme is to absorb the waste gas in the mixer and filter it through the purification and filtration box. During use, the filter in the filter box needs to be frequently replaced. At the same time, due to design reasons, it cannot handle the flue gas at the feeding device, and it is not very convenient to use. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the utility model provides a multi-stage environmental protection device for an in-situ remixing machine, which can effectively treat the flue gas at the feeding port, and at the same time increase the sealing performance to improve the thermal efficiency, and can effectively reduce environmental protection problems.

[0005] To achieve the above object, the multi-stage environmental protection device of the in-situ remixing machine of the present utility model includes a front environmental protection device, an upper baffle of the front environmental protection device, a second flue gas recovery pipe, a top-mounted stirring cavity, a top-mounted combustion cavity, and a frame. The front part of the frame is pin-connected to the bottom-mounted stirring device through four points of a mixing cylinder lifting frame. An inclined feeding device is installed in the middle of the frame, and a top-mounted stirring device is fixedly installed at the rear of the frame. A first feeding collector is fixedly installed on the front vertical surface of the bottom-mounted stirring device. The front environmental protection device is fixedly installed above the front side of the first feeding collector. The front environmental protection device is communicated with the bottom-mounted stirring device. The rear vertical surface of the bottom-mounted stirring device is fixedly installed with a discharging covering device through bolts. The discharging covering device and the environmental protection opening device are hermetically configured. The environmental protection opening device is hinged to the front vertical surface of the second feeding collector. The rear vertical surface of the second feeding collector is fixedly connected to the inlet of the inclined feeding device. The environmental protection device is bolted to the inclined vertical surface of the inclined feeding device and is respectively communicated with the second feeding collector and the inclined feeding device. The two ends of the flexible connection sealing device are respectively fixed to the outlet of the inclined feeding device and the inlet of the top-mounted stirring device.

[0006] In addition, the multi-stage environmental protection device of the in-situ remixing machine proposed according to the above embodiments of the present utility model may also have the following additional technical features:

[0007] As a further improvement of the present utility model, the front environmental protection device, the upper baffle of the front environmental protection device, the second flue gas recovery pipe, the flue gas flange, the bottom-mounted stirring device, the circulation fan passage, the circulation fan, the combustion cavity, and the stirring cavity. The upper baffle of the front environmental protection device installed above the front side of the first feeding collector is connected to the flue gas flange through the second flue gas recovery pipe. The flue gas flange is screwed to the circulation fan passage. The circulation fan introduces the flue gas in the circulation fan passage into the combustion cavity for internal combustion to remove the asphalt fume. The combustion cavity is communicated with the bottom-mounted stirring cavity.

[0008] As a further improvement of the present utility model, two or more through holes are opened in the upper part of the upper baffle of the front environmental protection device, and each through hole is connected to its own second flue gas recovery pipe.

[0009] As a further improvement of the present utility model, an environmental protection pipe extraction hole is provided on the upper surface of the second feeding collector and is connected to the environmental protection device through the first flue gas recovery pipe. The recovered flue gas is burned for the second time, and the heated gas is introduced into the inclined feeding device through the bottom surface of the environmental protection device to heat the internal mixture.

[0010] As a further improvement of the present utility model, two or more through holes are opened in the upper part of the second feeding collector, and each through hole is connected to its own first flue gas recovery pipe.

[0011] As a further improvement of the present utility model, the environmental protection opening device is equipped with a hydraulic push rod.

[0012] Through the above scheme, the utility model has at least the following advantages: in conjunction with the new two-stage remixing process, a mode is introduced in which the mixed material pile is in a fully closed state from the beginning of the collecting feeder to the discharge port of the top mixing cylinder, so as to solve the problems of more smoke escaping from the feed port, prominent environmental protection issues, low heating efficiency, difficulty in heat preservation and large construction smoke; it ensures that the multi-stage environmental protection device is fully sealed during the construction process, and the environmental protection opening device is linked to the pressure of the inclined lifting device. At the same time, when the pressure value is too large, the environmental protection opening device automatically opens to facilitate the operator to observe the internal situation; the bottom mixing cylinder is used to cooperate with the environmental protection opening device, the inclined lifting device, the customized stirring device, etc. to seal each other, so as to realize fully enclosed multi-stage environmental protection and multi-stage heating, reduce heat dissipation, and improve heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the multi-stage environmental protection device of the on-site remixer;

[0014] Figure 2 It is a three-dimensional diagram of the dismantling frame of the multi-stage environmental protection device of the in-situ remixer;

[0015] Figure 3 yes Figure 2 Side view of

[0016] Figure 4 yes Figure 2 A top view of

[0017] Figure 5 It is a multi-stage environmental protection device of the on-site remixer. Figure 3 A partial enlarged view of A;

[0018] Figure 6 It is a multi-stage environmental protection device of the on-site remixer. Figure 3 A partial enlarged view of B;

[0019] Figure 7 It is a multi-stage environmental protection device of the on-site remixer. Figure 3 A partial enlarged view of C;

[0020] In the figure: 1. Front environmental protection device, 1-1. Upper baffle of front environmental protection device, 1-2. Smoke recovery pipe 2, 1-3. Smoke flange, 2. Collecting feeder 1, 3. Bottom stirring device, 3-1. Circulating fan channel, 3-2. Circulating fan, 3-3. Combustion chamber, 3-4. Stirring chamber, 4. Discharging covering device, 5. Environmental protection opening device, 5-1. Environmental protection device closed state, 5-2. Environmental protection device opened state, 6. Collecting feeder 2, 7. Inclined lifting device, 8. Environmental protection device, 8-1. Smoke recovery pipe 1, 9. Soft connection sealing device, 10. Top stirring device, 10-1. Top stirring chamber, 10-2. Top combustion chamber, 11. Frame. DETAILED DESCRIPTION

[0021] The multi - level environmental protection device of the in - situ remixing machine of the present utility model will be described below in conjunction with the accompanying drawings.

[0022] In the first embodiment of the present application, as Figures 1 to 4 shown, the multi - level environmental protection device of this in - situ remixing machine (hereinafter simply referred to as "this patent") includes a front - end environmental protection device 1, an upper baffle 1 - 1 of the front - end environmental protection device, a second flue gas recovery pipe 1 - 2, a flue gas flange 1 - 3, a first feeding collector 2, a bottom - mounted stirring device 3, a circulation fan passage 3 - 1, a circulation fan 3 - 2, a combustion cavity 3 - 3, a stirring cavity 3 - 4, a discharge covering device 4, an environmental protection opening device 5, a second feeding collector 6, an inclined feeding device 7, an environmental protection device 8, a first flue gas recovery pipe 8 - 1, a flexible connection sealing device 9, a top - mounted stirring device 10, a top - mounted stirring cavity 10 - 1, a top - mounted combustion cavity 10 - 2, and a frame 11. The front part of the frame 11 is pin - connected to the bottom - mounted stirring device 3 through four points of a mixing cylinder lifting frame. The inclined feeding device 7 is installed in the middle of the frame 11, and the top - mounted stirring device 10 is fixedly installed at the rear of the frame 11. The first feeding collector 2 is fixedly installed on the front vertical surface of the bottom - mounted stirring device 3. The front - end environmental protection device 1 is fixedly installed above the front side of the first feeding collector 2. The front - end environmental protection device 1 is communicated with the bottom - mounted stirring device 3. The discharge covering device 4 is fixedly installed on the rear vertical surface of the bottom - mounted stirring device 3 through bolts. The discharge covering device 4 and the environmental protection opening device 5 are sealed to prevent the upward overflow of hot air. The environmental protection opening device 5 is hinged on the front vertical surface of the second feeding collector 6. The rear vertical surface of the second feeding collector 6 is fixedly connected to the inlet of the inclined feeding device 7. The environmental protection device 8 is bolt - fixed on the inclined vertical surface of the inclined feeding device 7 and is respectively communicated with the second feeding collector 6 and the inclined feeding device 7. The two ends of the flexible connection sealing device 9 are respectively fixed at the outlet of the inclined feeding device 7 and the inlet of the top - mounted stirring device 10. The inclined feeding device 7 adjusts its own posture through the telescopic movement of the oil cylinder.

[0023] A flue gas treatment structure of a heating remixing machine with the utility model number CN206887702U (hereinafter simply referred to as "this patent application solution") mainly absorbs the waste gas in the mixer and filters it through a purification and filtration box. When in use, the filter in the filtration box needs to be frequently replaced. At the same time, due to design reasons, it cannot handle the flue gas at the feeding collector, and it is not very convenient to use. While this application uses a mode in which the whole process from the first feeding collector to the discharge port of the top - mounted mixing cylinder is in a fully enclosed state, solving the problems of more flue gas escaping from the feeding port, prominent environmental protection problems, low heating efficiency, difficult heat preservation, and large construction flue gas. At the same time, with the help of the environmental protection device arranged at the feeding collector to handle the flue gas, the flue gas is recovered and burned again to eliminate the asphalt smoke, and the heat is used to heat the asphalt mixture again, improving the heating efficiency and reducing energy waste.

[0024] The second embodiment is basically the same as the first embodiment in structure, except that, as Figure 2As shown, the front environmental protection device 1, the upper baffle 1-1 of the front environmental protection device, the second flue gas recovery pipe 1-2, the flue gas flange 1-3, the bottom stirring device 3, the circulation fan channel 3-1, the circulation fan 3-2, the combustion cavity 3-3, and the stirring cavity 3-4. The upper baffle 1-1 of the front environmental protection device 1 installed above the front side of the first feeding collector 2 is connected to the flue gas flange 1-3 through the second flue gas recovery pipe 1-2. The flue gas flange 1-3 is screwed to the circulation fan channel 3-1. The circulation fan 3-2 introduces the flue gas in the circulation fan channel 3-1 into the combustion cavity 3-3 for internal combustion to remove the asphalt fume. The combustion cavity 3-3 communicates with the bottom stirring cavity 3-4. After collecting and introducing the flue gas recovery pipe 1-2 drawn from the front environmental protection device 1 into the combustion cavity 3-3 for heating, it is introduced into the stirring cavity 3-4 to heat the asphalt mixture while stirring. An environmental protection pipe extraction hole is provided on the upper surface of the second feeding collector 6, and it is connected to the environmental protection device 8 through the first flue gas recovery pipe 8-1 to perform secondary combustion on the recovered flue gas, and the heated gas is introduced into the inclined feeding device 7 from the bottom surface of the environmental protection device 8 to heat the mixture inside.

[0025] In order to further optimize the working efficiency of the present application and better absorb the flue gas, two or more through holes are opened in the upper part of the upper baffle 1-1 of the front environmental protection device, and each through hole is connected to its own second flue gas recovery pipe 1-2. Two or more through holes are opened in the upper part of the second feeding collector 6, and each through hole is connected to its own first flue gas recovery pipe 8-1. For the convenience of staff maintenance, as Figure 6 shown, the environmental protection opening device 5 is equipped with a hydraulic push rod. The closed state 5-1 of the environmental protection device of the environmental protection opening device 5 can ensure the seal between the discharge covering device 4 and the second feeding collector 6; when the inclined feeding device 7 has a pushing material and the pressure value reaches a certain value, the hydraulic push rod automatically opens the closed state 5-1 of the environmental protection device to the open state 5-2 of the environmental protection device, and the opening angle is about 90°, which is convenient for the operator to observe the situation of the material pile and make relevant operations.

[0026] During use, install the in-situ remixing machine multi-stage environmental protection device and connect the corresponding pipelines, and the equipment can be put into use.

[0027] When the present utility model is in use, the specific work is as follows:

[0028] During use, the flue gas flange 1-3 provided at the inlet of the bottom-mounted stirring device circulating fan 3-2 collects the flue gas recovery pipes 1-2 that draw the flue gas from the front-mounted environmental protection device 1, and after being imported into the combustion cavity 3-3 for heating, it is imported into the stirring cavity 3-4 to heat the asphalt mixture while stirring; the discharge port of the bottom-mounted stirring device 3 is provided with a discharge covering device 4 to prevent the hot air from overflowing upward; the inclined feeding device 7 is fixedly connected to the frame 11 through a hydraulic cylinder and a bolt, and the posture of the inclined feeding device 7 is adjusted by the telescopic movement of the cylinder; a second aggregate feeder 6 is fixed on the front side of the inclined feeding device 7, and a flue gas recovery port is provided on the upper surface of the second aggregate feeder 6. The flue gas is attracted into the environmental protection device 8 through the environmental protection device flue gas recovery pipe 8-1 for combustion, and the heated gas is introduced into the interior through the upper inclined surface of the inclined feeding device 7 to perform secondary heating on the interior mixture; the environmental protection opening device 8 is fixed to the front side of the second aggregate feeder 6 by a bolt, so that the environmental protection opening device 8 can be turned upward by 90° for easy maintenance. In the closed state 5-1 of the environmental protection opening device, it can cooperate with the discharge covering device at the discharge port of the bottom-mounted stirring device to achieve a sealing effect; the inclined feeding device 7 is connected to the top-mounted stirring device 10 through a flexible connection sealing device 9 to ensure that no flue gas leaks into the air during the movement of the inclined feeding device 7. The asphalt smoke generated is burned by the top-mounted combustion cavity 10-2, and the heat is introduced into the top-mounted stirring cavity 10-1 to achieve environmental protection treatment and improve the heating efficiency.

[0029] In summary, the multi-stage environmental protection device of the in-situ remixing machine in the embodiment of the present invention, in cooperation with the double-stage remixing new process, introduces a mode in which the mixture pile is in a fully enclosed state from the first aggregate feeder 2 to the discharge port of the top-mounted stirring device 10, solving the problems of a large amount of flue gas escaping from the feed port, prominent environmental protection problems, low heating efficiency, difficult heat preservation, and large construction flue gas; ensuring that the multi-stage environmental protection device is fully sealed during the construction process, the environmental protection opening device is associated with the pressure of the inclined feeding device, and when the pressure value is too large, the environmental protection opening device automatically opens to facilitate the operator to observe the internal situation; using the bottom-mounted mixing cylinder in cooperation with the environmental protection opening device, the inclined feeding device, the customized stirring device, etc. to achieve mutual sealing and cooperation, realizing fully enclosed multi-stage environmental protection and multi-stage heating, reducing heat dissipation, and improving the heating efficiency.

[0030] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary, and is not intended to imply that the scope of the invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity. Any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-stage environmental protection device for an on-site remixer, comprising a first collecting feeder (2), a bottom stirring device (3), a second collecting feeder (6), an inclined material lifting device (7) and a frame (11), wherein the front of the frame (11) is connected to the bottom stirring device (3) through a four-point pin of a mixing cylinder lifting frame, the middle of the frame (11) is installed with the inclined material lifting device (7), and the rear of the frame (11) is fixedly installed with an overhead stirring device (10), characterized in that: The front face of the bottom-mounted stirring device (3) is fixedly mounted with a feeder (2), a front environmental protection device (1) is fixedly mounted on the upper front side of the feeder (2), the front environmental protection device (1) is connected to the bottom-mounted stirring device (3), a discharge covering device (4) is fixedly mounted on the rear face of the bottom-mounted stirring device (3) by bolts, the discharge covering device (4) and the environmental protection opening device (5) are sealed, the environmental protection opening device (5) is hinged on the front face of the feeder (6), the rear face of the feeder (6) is fixedly connected to the inlet of the inclined lifting device (7), the environmental protection device (8) is bolted to the inclined face of the inclined lifting device (7), and is respectively connected to the feeder (6) and the inclined lifting device (7), the two ends of the soft connection sealing device (9) are respectively fixed to the outlet of the inclined lifting device (7) and the inlet of the top-mounted stirring device (10).

2. The multi-stage environmental protection device for an on-site remixer according to claim 1, characterized in that: The front environmental protection device (1), the upper baffle plate (1-1) of the front environmental protection device, the second smoke recovery pipe (1-2), the smoke flange (1-3), the bottom stirring device (3), the circulating fan channel (3-1), the circulating fan (3-2), the combustion chamber (3-3), and the stirring chamber (3-4) are as follows: the upper baffle plate (1-1) of the front environmental protection device (1) installed on the front side of the collecting feeder (2) is connected to the smoke flange (1-3) through the second smoke recovery pipe (1-2), the smoke flange (1-3) is screwed to the circulating fan channel (3-1), the circulating fan (3-2) guides the smoke in the circulating fan channel (3-1) into the combustion chamber (3-3) to burn and remove asphalt smoke, and the combustion chamber (3-3) is connected to the bottom stirring chamber (3-4).

3. The multi-stage environmental protection device of the on-site remixer according to claim 2 is characterized in that: The upper baffle plate (1-1) of the front environmental protection device is provided with two or more through holes on its upper part, and each through hole is connected to a respective second smoke recovery pipe (1-2).

4. The multi-stage environmental protection device for an on-site remixer according to claim 1, characterized in that: The upper surface of the collecting feeder 2 (6) is provided with an environmental protection pipe exhaust hole, which is connected to the environmental protection device (8) through the smoke recovery pipe 1 (8-1).

5. The multi-stage environmental protection device for an on-site remixer according to claim 4, characterized in that: The upper part of the collecting feeder 2 (6) is provided with two or more through holes, and each through hole is connected to a respective smoke recovery pipe 1 (8-1).

6. The multi-stage environmental protection device for an on-site remixer according to claim 1, characterized in that: The environmentally friendly opening device (5) is equipped with a hydraulic push rod.

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