Cement stabilized macadam mixture mixing equipment

Abstract

The utility model discloses cement stabilized macadam mixture mixing equipment which is characterized in that a first aggregate conveying device is provided with a first-stage aggregate conveying device and a second-stage aggregate conveying device, and an aggregate metering system comprises a first-stage aggregate metering system and a second-stage aggregate metering system; the first-stage aggregate metering system is used for controlling aggregate in each aggregate bin in the plurality of aggregate bins to enter the first-stage aggregate conveying device according to a set amount, and the second-stage aggregate metering system is used for controlling a second mixture in the second mixing device to enter the first mixture mixing system according to a set amount; a metering result comparison module is connected between the first-stage aggregate metering system and the second-stage aggregate metering system, and the metering result of the first-stage aggregate metering system can be compared with the metering result of the second-stage aggregate metering system through the metering result comparison module, so that the problem of metering misalignment can be found in time.

Description

Technical Field

[0001] The utility model relates to cement-stabilized crushed stone mixture mixing equipment. Background Art

[0002] Cement-stabilized crushed stone base is one of the commonly used base structures for highways, and its construction quality directly affects the overall performance and service life of the road. The production, paving and rolling of cement-stabilized crushed stone mixture are key links to ensure the quality of cement-stabilized crushed stone base. Among them, the production of cement-stabilized crushed stone mixture should ensure that the actual composition ratio of the cement-stabilized crushed stone mixture is consistent with the designed composition ratio.

[0003] At present, the production of cement-stabilized gravel mixture is usually completed in a cement-stabilized gravel mixture mixing station. Conventional cement-stabilized gravel mixture mixing stations mainly include an aggregate feeding system, a cement feeding system and a mixture mixing system. The aggregate feeding system includes a plurality of aggregate bins (each of which stores aggregates of different particle sizes), an aggregate conveying device for conveying the aggregates in the plurality of aggregate bins to the mixture mixing system, and an aggregate metering system for controlling the aggregates in each of the plurality of aggregate bins to enter the mixture mixing system according to a set amount. The cement feeding system includes a cement bin, a cement conveying device for conveying the cement in the cement bin to the mixture mixing system, and a cement metering system for controlling the cement in the cement bin to enter the mixture mixing system according to a set amount. The mixture mixing system includes a mixing cylinder, which receives the aggregates from the aggregate feeding system and the cement from the cement feeding system respectively, and forms and outputs a cement-stabilized gravel mixture after mixing with water.

[0004] At present, the aggregate metering system relies on a single metering instrument to measure the aggregate output from each aggregate bin. However, it is not easy to detect the inaccuracy of a single metering instrument. If the measurement of the aggregate output from any aggregate bin is inaccurate, the composition ratio of the cement-stabilized crushed stone mixture will deviate from the designed composition ratio. Utility Model Content

[0005] The utility model aims to provide a cement-stabilized crushed stone mixture mixing device to solve the problem that the aggregate metering system relies on a single metering instrument to measure the aggregates output from each aggregate bin, resulting in a greater risk of the cement-stabilized crushed stone mixture composition ratio deviating from the designed composition ratio.

[0006] In this regard, a cement-stabilized crushed stone mixture mixing device is provided, comprising: an aggregate feeding system, comprising a plurality of aggregate bins, a first aggregate conveying device for conveying aggregates in the plurality of aggregate bins to a first mixture mixing system, and an aggregate metering system for controlling the aggregates in each of the plurality of aggregate bins to enter the first mixture mixing system according to a set amount; a cement feeding system, comprising a cement bin, a cement conveying device for conveying cement in the cement bin to the first mixture mixing system, and a cement metering system for controlling the cement in the cement bin to enter the first mixture mixing system according to a set amount; the first mixture mixing system comprises a first mixing device, the first mixing device respectively receives aggregates from the aggregate feeding system and cement from the cement feeding system, and mixes them with water to form and output a first mixture, the first mixture being a cement-stabilized crushed stone mixture; the first aggregate conveying device comprises a first-stage aggregate conveying device and a second-stage aggregate conveying device, the first-stage aggregate conveying device and the A second mixture mixing system is provided between the second-level aggregate conveying devices, the first-level aggregate conveying device is used to convey the aggregates in the multiple aggregate bins to the second mixture mixing system, the second-level aggregate conveying device is used to convey the second mixture formed and output by the second mixture mixing system to the first mixture mixing system, the second mixture mixing system includes a second mixing device, the second mixing device is used to pre-mix the aggregates from the first-level aggregate conveying device to form and output the second mixture; in addition, the aggregate metering system includes a first-level aggregate metering system and a second-level aggregate metering system, the first-level aggregate metering system is used to control the aggregates in each of the multiple aggregate bins to enter the first-level aggregate conveying device according to a set amount, the second-level aggregate metering system is used to control the second mixture in the second mixing device to enter the first mixture mixing system according to a set amount, and a metering result comparison module is connected between the first-level aggregate metering system and the second-level aggregate metering system.

[0007] According to an embodiment of the present application, the first-level aggregate metering system includes a weighing feeder that can weigh and meter the aggregates output from the multiple aggregate bins respectively.

[0008] According to an embodiment of the present application, the first-level aggregate metering system includes weighing feeders that are arranged one-to-one at the lower outlet of each aggregate bin in the multiple aggregate bins.

[0009] According to an embodiment of the present application, the second-stage aggregate metering system includes a weighing feeder that can weigh and meter the second mixed material output from the second mixing device.

[0010] According to an embodiment of the present application, the first-stage material collecting conveying device and / or the second-stage material collecting conveying device adopts a belt conveyor.

[0011] According to an embodiment of the present application, the weighing result comparison module adopts a PLC controller, and the output end of the PLC controller is connected to a host computer.

[0012] In the above-mentioned cement-stabilized crushed stone mixture mixing equipment, the measurement results of the first-level aggregate metering system can be compared with the measurement results of the second-level aggregate metering system through the metering result comparison module. When the comparison difference exceeds the set error, it can be considered that one of the first-level aggregate metering system and the second-level aggregate metering system has failed, thereby prompting the first-level aggregate metering system and the second-level aggregate metering system to be checked in order to promptly discover the metering inaccuracy problem. In addition, the second mixture mixing system pre-mixes the aggregates from the first-level aggregate conveying device to form and output the second mixture, which helps to pre-mix different aggregates evenly and improve the production quality of cement-stabilized crushed stone mixture.

[0013] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through practice. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this specification are used to assist the understanding of the present invention. The contents provided in the drawings and the related descriptions in this specification can be used to explain the present invention, but do not constitute an improper limitation on the present invention.

[0015] Figure 1 It is a structural schematic diagram of a cement-stabilized gravel mixture mixing device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The utility model is described clearly and completely below in conjunction with the accompanying drawings. A person skilled in the art will be able to implement the utility model based on these descriptions. Before describing the utility model in conjunction with the accompanying drawings, it should be particularly noted that:

[0017] The technical solutions and technical features provided in each section, including the following description, can be combined with each other without conflict. In addition, where possible, these technical solutions, technical features and related combinations can be assigned specific technical themes and protected by relevant patents.

[0018] The embodiments of the utility model involved in the following description are usually only a part of the embodiments rather than all the embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of patent protection.

[0019] Regarding the terms and units in this specification: The terms "include", "comprises", "have" and any variations thereof in this specification and the corresponding claims and related parts are intended to cover non-exclusive inclusions. In addition, other relevant terms and units can be reasonably interpreted based on the relevant content provided in this specification.

[0020] like Figure 1 As shown, a cement stabilized gravel mixture mixing equipment comprises: an aggregate feeding system, comprising a plurality of aggregate bins 11, a first aggregate conveying device for conveying aggregates in the plurality of aggregate bins 11 to a first mixture mixing system, and an aggregate metering system for controlling the aggregates in each of the plurality of aggregate bins to enter the first mixture mixing system according to a set amount; a cement feeding system, comprising a cement bin 21, a cement conveying device for conveying cement in the cement bin 21 to the first mixture mixing system, and a cement metering system for controlling the cement in the cement bin to enter the first mixture mixing system according to a set amount; the first mixture mixing system comprises a first mixing device 31, the first mixing device 31 receives aggregates from the aggregate feeding system and cement from the cement feeding system respectively, and mixes them with water to form and output a first mixture, the first mixture being a cement stabilized gravel mixture; the first aggregate conveying device comprises a first-stage aggregate conveying device 121 and a second-stage aggregate conveying device 122, the first-stage aggregate conveying device 121 and the second-stage aggregate conveying device 122 being connected to each other. A second mixture mixing system is provided between the conveying devices 122, the first-level aggregate conveying device 121 is used to convey the aggregates in the multiple aggregate bins 11 to the second mixture mixing system, the second-level aggregate conveying device 122 is used to convey the second mixture formed and output by the second mixture mixing system to the first mixture mixing system, the second mixture mixing system includes a second mixing device 123, the second mixing device 123 is used to pre-mix the aggregates from the first-level aggregate conveying device 121 to form and output the second mixture; in addition, the aggregate metering system includes a first-level aggregate metering system and a second-level aggregate metering system, the first-level aggregate metering system is used to control the aggregates in each aggregate bin of the multiple aggregate bins 11 to enter the first-level aggregate conveying device 121 according to a set amount, the second-level aggregate metering system is used to control the second mixture in the second mixing device 123 to enter the first mixture mixing system according to a set amount, and a weighing result comparison module is connected between the first-level aggregate metering system and the second-level aggregate metering system.

[0021] Specifically, the first-level aggregate metering system includes a weighing feeder 131 that can weigh and meter the aggregates output from the multiple aggregate bins respectively.

[0022] Specifically, the first-level aggregate metering system includes weighing feeders 131 that are arranged one-to-one at the lower outlet of each aggregate bin 11 in the plurality of aggregate bins 11 .

[0023] Specifically, the second-stage aggregate metering system includes a weighing feeder 132 that can weigh and meter the second mixed material output from the second mixing device 123 .

[0024] Specifically, the measurement result comparison module adopts a PLC controller 13, and the output end of the PLC controller 13 is connected to a host computer.

[0025] Specifically, the first-stage material collecting and conveying device 121 and / or the second-stage material collecting and conveying device 122 are / is a belt conveyor.

[0026] Specifically, the cement metering system includes a weighing feeder 22 correspondingly arranged at the lower outlet of the cement silo 21 .

[0027] Specifically, the first mixing device 31 outputs through a cement-stabilized crushed stone mixture conveying device 32, and the cement-stabilized crushed stone mixture conveying device 32 adopts a belt conveyor.

[0028] In the above-mentioned cement-stabilized crushed stone mixture mixing equipment, the measurement results of the first-level aggregate metering system can be compared with the measurement results of the second-level aggregate metering system through the metering result comparison module. When the comparison difference exceeds the set error, it can be considered that one of the first-level aggregate metering system and the second-level aggregate metering system has failed, thereby prompting the first-level aggregate metering system and the second-level aggregate metering system to be checked in order to promptly discover the metering inaccuracy problem. In addition, the second mixture mixing system pre-mixes the aggregates from the first-level aggregate conveying device to form and output the second mixture, which helps to pre-mix different aggregates evenly and improve the production quality of cement-stabilized crushed stone mixture.

[0029] In this embodiment, the sum of the weights measured by each weighing feeder 131 should theoretically be equal to the weight measured by the weighing feeder 132. When the comparison difference exceeds the set error, the second mixed material output by the second-stage aggregate conveying device 122 may be temporarily not sent to the first mixing device 31, and then the aggregate is provided to the weighing feeder 132 from each aggregate bin 11 through the corresponding weighing feeder 131 and the first-stage aggregate conveying device 121. By comparing the measurement values ​​of each weighing feeder 131 with the measurement values ​​of the weighing feeder 132, the weighing feeder with the fault can be found.

[0030] The above is a description of the relevant contents of the utility model. A person skilled in the art will be able to implement the utility model based on these descriptions. Based on the above contents of this specification, all other embodiments obtained by a person skilled in the art without making any creative work shall fall within the scope of patent protection.

Claims

1. Cement stabilized gravel mixture mixing equipment, including: An aggregate feeding system, comprising a plurality of aggregate bins, a first aggregate conveying device for conveying aggregates in the plurality of aggregate bins to a first mixed material mixing system, and an aggregate metering system for controlling the aggregates in each of the plurality of aggregate bins to enter the first mixed material mixing system according to a set amount; A cement feeding system, comprising a cement silo, a cement conveying device for conveying cement in the cement silo to a first mixture mixing system, and a cement metering system for controlling the cement in the cement silo to enter the first mixture mixing system according to a set amount; A first mixture mixing system comprises a first mixing device, wherein the first mixing device receives aggregates from the aggregate supply system and cement from the cement supply system respectively, mixes them with water to form and output a first mixture, wherein the first mixture is a cement-stabilized crushed stone mixture; Features: The first aggregate conveying device comprises a first-stage aggregate conveying device and a second-stage aggregate conveying device, a second mixed material mixing system is arranged between the first-stage aggregate conveying device and the second-stage aggregate conveying device, the first-stage aggregate conveying device is used to convey the aggregates in the plurality of aggregate bins to the second mixed material mixing system, the second-stage aggregate conveying device is used to convey the second mixed material formed and output by the second mixed material mixing system to the first mixed material mixing system, the second mixed material mixing system comprises a second mixing device, the second mixing device is used to pre-mix the aggregates from the first-stage aggregate conveying device and then form and output the second mixed material; In addition, the aggregate metering system includes a first-level aggregate metering system and a second-level aggregate metering system. The first-level aggregate metering system is used to control the aggregates in each of the multiple aggregate bins to enter the first-level aggregate conveying device according to a set amount, and the second-level aggregate metering system is used to control the second mixture in the second mixing device to enter the first mixture mixing system according to a set amount. A metering result comparison module is connected between the first-level aggregate metering system and the second-level aggregate metering system.

2. The cement-stabilized crushed stone mixture mixing equipment according to claim 1, characterized in that: The first-level aggregate metering system includes a weighing feeder that can weigh and meter the aggregates output from the multiple aggregate bins respectively.

3. The cement-stabilized crushed stone mixture mixing equipment according to claim 2, characterized in that: The first-stage aggregate metering system comprises weighing feeders which are arranged one by one at the lower outlet of each aggregate bin in the plurality of aggregate bins.

4. The cement-stabilized crushed stone mixture mixing equipment according to claim 1, characterized in that: The second-stage aggregate metering system comprises a weighing feeder which can weigh and meter the second mixed material output from the second mixing device.

5. The cement-stabilized crushed stone mixture mixing equipment according to claim 1, characterized in that: The first-stage material collecting conveying device and / or the second-stage material collecting conveying device adopts a belt conveyor.

6. The cement-stabilized crushed stone mixture mixing equipment according to claim 1, characterized in that: The measurement result comparison module adopts a PLC controller, and the output end of the PLC controller is connected to a host computer.

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