Movable concrete mixing plant

Abstract

The utility model provides a movable concrete mixing plant. The movable concrete mixing plant comprises a concrete mixing assembly and a track flat car assembly, the concrete stirring assembly comprises a liquid material supply single piece, a powder material supply single piece, a gravel supply single piece and a stirring single piece connected with the liquid material supply single piece, the powder material supply single piece and the gravel supply single piece. The rail flat car assembly comprises a first flat car and a second flat car, the single stirring piece, the single liquid material supply piece and the single powder material supply piece are all arranged on the first flat car, and the single gravel supply piece is arranged on the second flat car. The liquid material supply single piece, the powder material supply single piece and the stirring single piece are integrated on the first flat car, and the gravel supply single piece is arranged on the second flat car, so that the whole equipment can be transported on a rail and can also enter a tunnel and other places with limited space, the space is saved, meanwhile, the carrying capacity of all materials is guaranteed, and the working efficiency is improved. And the requirement of concrete materials required for repairing time diseases of one skylight is met.

Description

Technical Field

[0001] The utility model relates to the field of tunnel construction, in particular to a mobile concrete mixing station. Background Art

[0002] With the continuous growth of the total mileage of railway tunnels in my country, the diseases of the operating railway tunnels are becoming more and more frequent. Tunnel lining structure cracks, block falling, mesh cracks, water leakage, frost heave and other diseases have seriously threatened the safety of train operation. In order to prepare concrete for the repair of tunnel structure diseases, the engineering department often bags sand, stone, cement and other materials outside the tunnel, pulls them into the tunnel by flatbed trucks, and manually unpacks the bags on site and pours them into the mixer for concrete production. However, this method causes high dust pollution (dust is blown out when cement is unpacked and inverted), poor concrete quality (using simple mixers such as drum mixers), high labor consumption (more than 10 people are required to cooperate in construction), long construction period, high construction cost, and low overall construction efficiency. The use of some mobile mixing stations can solve some of the above problems, but the existing mobile mixing stations still have the following problems:

[0003] ① The equipment is large in size and needs to be unfolded when used on site, which does not meet the requirements of railway transportation and working limit dimensions.

[0004] ② Using independent powder and aggregate scales, which takes up material storage space, is difficult to meet the concrete material requirements for repairing the damage within a skylight time (the prepared concrete is larger than 12m 3 ).

[0005] Therefore, how to provide a mobile concrete mixing station that meets the requirements of railway transportation and working limit dimensions and has a certain storage capacity is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In order to meet the requirements of railway transportation and working clearance dimensions while ensuring storage capacity, the utility model provides a mobile concrete mixing station that adopts the following technical solutions:

[0007] A mobile concrete mixing station includes a concrete mixing assembly and a rail flatbed vehicle assembly;

[0008] The concrete mixing assembly includes a liquid material supply unit, a powder material supply unit, a sand and gravel supply unit, and a mixing unit connected to the three.

[0009] The rail flatbed car assembly includes a first flatbed car and a second flatbed car. The stirring unit, liquid material supply unit and powder material supply unit are all arranged on the first flatbed car, and the sand and gravel supply unit is arranged on the second flatbed car.

[0010] Preferably, the liquid material supply unit includes a liquid material storage tank, a liquid material supply pump, a liquid material delivery pipeline and a flow meter. The liquid material storage tank is connected to the stirring unit through the liquid material delivery pipe. The liquid material supply pump and the flow meter are both arranged on the liquid material delivery pipeline.

[0011] Preferably, the sand and gravel supply unit includes a sand and gravel conveyor belt and a sand and gravel metering assembly. The sand and gravel metering assembly is used to store and weigh sand and gravel. The outlet of the sand and gravel metering assembly is connected to the stirring unit through the sand and gravel conveyor belt.

[0012] Preferably, the sand and gravel metering assembly includes a first support frame, a sand and gravel storage bucket and a first sensor, the first support frame is arranged on the second flatbed truck, the sand and gravel storage bucket is arranged on the first support frame, and the first sensor is arranged on the first support frame for weighing the weight of sand and gravel.

[0013] Preferably, the top of the sand and gravel storage bucket is connected to the first support frame through a lock, and the lock is an adjustable length mechanism. During transportation, the lock is adjusted to the shortest to put the sand and gravel storage bucket in a tensioned state. During operation, the lock is lengthened to put the sand and gravel storage bucket in an movable state.

[0014] Preferably, the powder supply unit includes a powder conveyor and a powder metering component, the powder metering component is used to store and weigh powder, the input end of the powder conveyor is connected to the powder metering component, and the output end of the powder conveyor is connected to the stirring unit.

[0015] Preferably, the powder metering assembly includes a second support frame, a powder storage hopper and a second sensor, the second support frame is arranged on the first flatbed truck, the powder storage hopper is arranged on the second support frame, and the second sensor is arranged on the second support frame for weighing the powder.

[0016] Preferably, the top of the powder storage hopper is connected to the second support frame through a lock, and the lock is a length-adjustable mechanism. During transportation, the lock is adjusted to the shortest to put the powder storage hopper in a tensioned state. During operation, the lock is lengthened to put the powder storage hopper in a movable state.

[0017] Preferably, the stirring unit, the liquid material supply unit, the powder material supply unit, and the sand and gravel supply unit are arranged on the rail flatbed vehicle assembly in a straight line.

[0018] Preferably, the stirring unit includes a stirring main unit, which is arranged on the first flatbed vehicle through a bracket, and is provided with a feed port, a protective cover and a discharge port.

[0019] In summary, the present invention has at least one of the following beneficial technical effects:

[0020] 1. The mobile concrete mixing station of the present invention includes a concrete mixing assembly and a rail-mounted flatbed assembly; the concrete mixing assembly includes a liquid material supply unit, a powder material supply unit, a sand and gravel supply unit, and a mixing unit connected to the three; the rail-mounted flatbed assembly includes a first flatbed and a second flatbed, the mixing unit, the liquid material supply unit, and the powder material supply unit are all arranged on the first flatbed, and the sand and gravel supply unit is arranged on the second flatbed. By integrating the liquid material supply unit, the powder material supply unit, and the mixing unit on the first flatbed and arranging the sand and gravel supply unit on the second flatbed, the entire equipment can be transported on rails and can also enter space-constrained places such as tunnels, saving space while ensuring the carrying capacity of each material, meeting the concrete material requirements for repairing defects within a skylight time.

[0021] 2. The liquid material supply unit in the present invention includes a liquid material storage tank, a liquid material supply pump, a liquid material delivery pipeline and a flow meter. The liquid material is measured by the flow meter, and the liquid material metering device located above the stirring unit is eliminated, thereby reducing the overall height.

[0022] 3. In the utility model, the mass of materials before and after feeding is weighed by the sand and gravel metering component and the powder metering component, and the readings before and after feeding are subtracted to obtain the feeding amount of sand and gravel and powder, thereby eliminating the step of additional weighing of sand and gravel and powder, reducing the volume of the mixing station, lowering the height of the mixing station to better adapt to the height limit of the railway tunnel, and further equipping with large-volume sand and gravel and powder hoppers to accommodate sufficient materials and increase the amount of concrete prepared within a skylight time.

[0023] 4. In the present invention, the mixing unit, liquid material supply unit, powder material supply unit, and sand and gravel supply unit are arranged in a straight line on the rail flatbed vehicle assembly to achieve the installation of units with different functions, thereby reducing the overall height and width of the mixing station. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the mobile concrete mixing station of the utility model;

[0025] Figure 2 yes Figure 1 Schematic diagram of the single-piece structure of the medium liquid material supply;

[0026] Figure 3 yes Figure 1 Schematic diagram of the medium sand and gravel supply single piece structure;

[0027] Figure 4 yes Figure 1 Schematic diagram of the single-piece structure of the medium powder supply;

[0028] Figure 5 yes Figure 1Schematic diagram of the single-piece structure of the mixing machine.

[0029] Description of reference numerals:

[0030] 1. Flatbed truck assembly, 1.1. first flatbed truck, 1.2. second flatbed truck;

[0031] 2. Concrete mixing components,

[0032] 2.1, stirring unit, 2.11, stirring main unit, 2.12, discharge port, 2.13, protective cover, 2.14, feed port;

[0033] 2.2, liquid material supply unit, 2.21, liquid material storage tank, 2.22, liquid material supply pump, 2.23, liquid material delivery pipeline, 2.24, flow meter;

[0034] 2.3. Powder supply unit, 2.31. Powder metering assembly, 2.311. Powder storage hopper, 2.312. Second support frame, 2.313. Second sensor, 2.314. Lock, 2.32. Powder conveyor;

[0035] 2.4. Sand and gravel supply unit, 2.41. Sand and gravel metering assembly, 2.411. Sand and gravel storage bucket, 2.412. First support frame, 2.413. First sensor, 2.314. Lock, 2.42. Sand and gravel conveyor belt. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-5 The utility model is described in further detail.

[0037] Reference Figure 1 The present invention discloses a mobile concrete mixing station, including a concrete mixing assembly 2 and a track-mounted flatbed assembly 1. The concrete mixing assembly 2 includes a liquid material supply unit 2.2, a powder material supply unit 2.3, a sand and gravel supply unit 2.4, and a mixing unit 2.1 connected to the three. The track-mounted flatbed assembly 1 includes a first flatbed 1.1 and a second flatbed 1.2. The mixing unit 2.1, the liquid material supply unit 2.2, and the powder material supply unit 2.3 are all arranged on the first flatbed 1.1, and the sand and gravel supply unit 2.4 is arranged on the second flatbed 1.2. By integrating the liquid material supply unit, the powder material supply unit, and the mixing unit on the first flatbed and arranging the sand and gravel supply unit on the second flatbed, the entire equipment can be transported on rails and can also enter places with limited space, such as tunnels, saving space while ensuring the carrying capacity of each material, meeting the concrete material requirements for repairing defects within a skylight time.

[0038] Reference Figure 2The liquid supply unit 2.2 includes a liquid storage tank 2.21, a liquid supply pump 2.22, a liquid delivery pipeline 2.23, and a flowmeter 2.24. The liquid storage tank 2.21 is connected to the stirring unit 2.1 via the liquid delivery pipeline 2.23. The liquid supply pump 2.22 and the flowmeter 2.24 are both mounted on the liquid delivery pipeline 2.23. The liquid storage tank stores an admixture. During operation, the liquid supply pump is activated to deliver the admixture from the liquid storage tank to the stirring unit. The volume of each delivery is controlled by the value displayed on the flowmeter. The liquid supply pump also delivers water to the stirring unit via a water pipe. The volume of each delivery is controlled by the value displayed on the flowmeter. The flowmeter is used to measure the liquid, eliminating the liquid metering device located above the stirring unit and reducing the overall height.

[0039] Reference Figure 3 The gravel supply unit 2.4 includes a gravel conveyor belt 2.42 and a gravel metering assembly 2.41. The gravel metering assembly 2.41 is used to store and weigh gravel. The outlet of the gravel metering assembly 2.41 is connected to the mixing unit 2.1 via the gravel conveyor belt 2.42. The gravel metering assembly 2.41 includes a first support frame 2.412, a gravel storage hopper 2.411, and a first sensor 2.413. The first support frame 2.412 is mounted on the second flatbed vehicle 1.2, the gravel storage hopper 2.411 is mounted on the first support frame 2.412, and the first sensor 2.413 is mounted on the first support frame 2.412 for weighing the gravel. The top of the gravel storage hopper 2.411 is connected to the first support frame 2.412 via a latch 2.314. The latch 2.314 is adjustable in length. During transportation, the latch 2.314 is shortened to keep the gravel storage hopper 2.411 in a tensioned state. During operation, the latch 2.314 is lengthened to allow the gravel storage hopper 2.411 to move freely. The gravel storage hopper stores gravel. The unloading door is opened to allow the gravel to be fed into the gravel conveyor belt. A first sensor detects changes in the gravel storage hopper's weight, thereby controlling the weight of the delivered gravel. The gravel conveyor belt utilizes a flat belt conveyor and a transition belt conveyor. The flat belt conveyor first transports the gravel and then feeds it into the mixing unit.

[0040] Reference Figure 4The powder supply unit 2.3 includes a powder conveyor 2.32 and a powder metering assembly 2.31. The powder metering assembly 2.31 is used to store and weigh the powder. The input end of the powder conveyor 2.32 is connected to the powder metering assembly 2.31, and the output end of the powder conveyor 2.32 is connected to the mixing unit 2.1. The powder metering assembly 2.31 includes a second support frame 2.312, a powder storage hopper 2.311, and a second sensor 2.313. The second support frame 2.312 is mounted on the first flatbed vehicle 1.1, the powder storage hopper 2.311 is mounted on the second support frame 2.312, and the second sensor 2.313 is mounted on the second support frame 2.312 for weighing the powder. The top of the powder storage hopper 2.311 is connected to the second support frame 2.312 via a latch 2.314. The latch 2.314 is adjustable in length. During transport, the latch 2.314 is shortened to maintain tension on the powder storage hopper 2.311. During operation, the latch 2.314 is lengthened to allow the powder storage hopper 2.311 to move freely. The powder storage hopper, which stores powder, is connected to a powder conveyor, preferably a screw conveyor, and is equipped with a pneumatic butterfly valve. During operation, the powder conveyor is first started, and the pneumatic butterfly valve is opened, allowing the powder to be conveyed via the two screw conveyors to the mixing unit.

[0041] Through the sand and gravel metering components and the powder metering components, the material mass before and after feeding is weighed, and the readings before and after feeding are subtracted to obtain the sand and gravel and powder feeding amount, eliminating the step of additional weighing of sand and gravel and powder, reducing the volume of the mixing station, lowering the height of the mixing station to better adapt to the height limit of the railway tunnel, and further equipping with large-volume sand and gravel and powder hoppers to accommodate sufficient materials and increase the amount of concrete prepared within a skylight time.

[0042] Reference Figure 5 The mixing unit 2.1, liquid material supply unit 2.2, powder material supply unit 2.3, and sand and gravel supply unit 2.4 are arranged in a straight line on the rail flatbed vehicle assembly. By arranging the mixing unit, liquid material supply unit, powder material supply unit, and sand and gravel supply unit in a straight line on the rail flatbed vehicle assembly, the installation of the different functional units is achieved, thereby reducing the overall height and width of the mixing station.

[0043] The mixing unit 2.1 includes a main mixer 2.11, which is mounted on the first flatbed vehicle 1.1 via a bracket. The main mixer 2.11 is equipped with a feed port 2.14, a protective cover 2.13, and a discharge port 2.12. The feed port and discharge port allow powder, sand, and liquid to be added to the mixer and mixed. The protective cover prevents sand and gravel from splashing, which could cause unnecessary waste and risk.

[0044] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mobile concrete mixing station, characterized in that: It comprises a concrete mixing assembly (2) and a rail flatbed vehicle assembly (1); The concrete mixing assembly (2) comprises a liquid material supply unit (2.2), a powder material supply unit (2.3), a sand and gravel supply unit (2.4), and a mixing unit (2.1) connected to the three. The rail flatbed vehicle assembly (1) comprises a first flatbed vehicle (1.1) and a second flatbed vehicle (1.2); the stirring unit (2.1), the liquid material supply unit (2.2) and the powder material supply unit (2.3) are all arranged on the first flatbed vehicle (1.1); and the sand and gravel supply unit (2.4) is arranged on the second flatbed vehicle (1.2).

2. A mobile concrete mixing station according to claim 1, characterized in that: The liquid material supply unit (2.2) comprises a liquid material storage tank (2.21), a liquid material supply pump (2.22), a liquid material delivery pipeline (2.23) and a flow meter (2.24); the liquid material storage tank (2.21) is connected to the stirring unit (2.1) via the liquid material delivery pipeline (2.23); the liquid material supply pump (2.22) and the flow meter (2.24) are both arranged on the liquid material delivery pipeline (2.23).

3. The mobile concrete mixing station according to claim 1, characterized in that: The sand and gravel supply unit (2.4) comprises a sand and gravel metering assembly (2.41) and a sand and gravel conveyor belt (2.42). The sand and gravel metering assembly (2.41) is used to store and weigh sand and gravel. The outlet of the sand and gravel metering assembly (2.41) is connected to the stirring unit (2.1) via the sand and gravel conveyor belt (2.42).

4. The mobile concrete mixing station according to claim 3, characterized in that: The sand and gravel metering assembly (2.41) includes a sand and gravel storage bucket (2.411), a first support frame (2.412) and a first sensor (2.413). The first support frame (2.412) is arranged on the second flatbed truck (1.2), the sand and gravel storage bucket (2.411) is arranged on the first support frame (2.412), and the first sensor (2.413) is arranged on the first support frame (2.412) for weighing the sand and gravel.

5. The mobile concrete mixing station according to claim 4, characterized in that: The top of the sand and gravel storage bucket (2.411) is connected to the first support frame (2.412) via a lock buckle (2.314). The lock buckle (2.314) is a length-adjustable mechanism. During transportation, the lock buckle (2.314) is adjusted to the shortest position, so that the sand and gravel storage bucket (2.411) is in a tensioned state. During operation, the lock buckle (2.314) is lengthened, so that the sand and gravel storage bucket (2.411) is in a movable state.

6. The mobile concrete mixing station according to claim 1, characterized in that: The powder supply unit (2.3) comprises a powder conveyor (2.32) and a powder metering assembly (2.31). The powder metering assembly (2.31) is used to store and weigh powder. The input end of the powder conveyor (2.32) is connected to the powder metering assembly (2.31), and the output end of the powder conveyor (2.32) is connected to the stirring unit (2.1).

7. The mobile concrete mixing station according to claim 6, characterized in that: The powder metering assembly (2.31) comprises a second support frame (2.312), a powder storage hopper (2.311) and a second sensor (2.313); the second support frame (2.312) is arranged on the first flatbed vehicle (1.1); the powder storage hopper (2.311) is arranged on the second support frame (2.312); and the second sensor (2.313) is arranged on the second support frame (2.312) for weighing the powder.

8. The mobile concrete mixing station according to claim 7, characterized in that: The top of the powder storage hopper (2.311) is connected to the second support frame (2.312) via a lock buckle (2.314). The lock buckle (2.314) is a length-adjustable mechanism. During transportation, the lock buckle (2.314) is adjusted to the shortest position, so that the powder storage hopper (2.311) is in a tensioned state. During operation, the lock buckle (2.314) is lengthened, so that the powder storage hopper (2.311) is in a movable state.

9. The mobile concrete mixing station according to claim 1, characterized in that: The stirring unit (2.1), the liquid material supply unit (2.2), the powder material supply unit (2.3), and the sand and gravel supply unit (2.4) are arranged on the rail flatbed vehicle assembly (1) in a straight line.

10. A mobile concrete mixing station according to any one of claims 1 to 8, characterized in that: The stirring unit (2.1) comprises a stirring main unit (2.11), which is arranged on the first flatbed vehicle (1.1) via a bracket. The stirring main unit (2.11) is provided with a feed port (2.14), a protective cover (2.13) and a discharge port (2.12).

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