Discharging device of concrete mixing plant

Abstract

The utility model relates to the technical field of concrete mixing equipment, and particularly discloses a discharging device of a concrete mixing plant, which comprises a discharging hopper and a discharging valve, a discharging port is arranged at the bottom of the discharging hopper, a discharging pipeline is connected to the discharging port, the discharging valve is mounted on the discharging pipeline, a baffle is arranged in the discharging valve, and the peripheral edge of the baffle is connected with a scraper. A hose is arranged on the lower portion of the discharging pipeline, two adjusting air cylinders are connected to the side face of the hose, the included angle between the two adjusting air cylinders is 90 degrees, and the adjusting air cylinders control the outlet position of the hose. The scraper structure is adopted, materials in the valve cavity are scraped away by the scraper in advance, material blocking of the baffle and the inner wall of the valve is avoided, the service life of the valve is prolonged, and the production efficiency of concrete is improved; the hose controls the discharging direction through the two adjusting air cylinders, the position of a feeding hopper of the mixer truck is recognized through the camera, the hose is controlled to directly face the feeding hopper, material scattering is avoided, discharging and filling are more accurate, the maintenance cost and the production cost are reduced, and the working environment is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing equipment, and particularly relates to a discharging device for a concrete mixing plant. Background Art

[0002] The discharging device of a concrete mixing plant is a key component to ensure the smooth and accurate transfer of the concrete finished product from the mixer to the transport vehicle or storage tank. The design and performance of the discharging device directly affect the quality of the concrete, the production efficiency of the mixing plant, and the operation safety. The following are some key information about the discharging device of a concrete mixing plant:

[0003] 1. Discharging valve: The discharging door is a device at the bottom of the mixer for controlling the outflow of concrete. It is usually designed to be pneumatically or hydraulically driven to ensure quick and accurate opening and closing. The design of the discharging door needs to consider the sealing performance to prevent the leakage of concrete during the mixing process.

[0004] 2. Control system: The discharging device of a modern mixing plant is usually integrated with the central control system and realizes automatic control through a PLC (Programmable Logic Controller) or DCS (Distributed Control System), including the opening and closing of the discharging door, the adjustment of the metering system, etc.

[0005] 3. Safety protection: The design of the discharging device needs to consider the safety of operators. Safety measures such as guardrails and emergency stop buttons are set to ensure that the discharging process can be quickly stopped in case of an emergency.

[0006] 4. Environmental protection measures: To reduce dust emissions and noise pollution, the discharging device is usually equipped with a dust collection device and sound insulation measures to meet environmental protection requirements.

[0007] The discharging device of a concrete mixing plant is an important part to ensure the high efficiency and safety of the concrete production and transportation process. Its design and application need to comprehensively consider production efficiency, concrete quality, operation safety, and environmental protection requirements. The existing control of the discharging valve on the discharging hopper generally uses a butterfly valve or an outer sealing door with an arc structure installed at the bottom. Both of these two sealing structures have the problem of easy material jamming. Aggregates are squeezed into the gaps between the baffle or the sealing door, resulting in poor sealing and damage to the equipment. The position of the feeding port is fixed and cannot accurately identify and align with the feeding hopper of the mixer truck, resulting in the problem of material scattering.

[0008] Therefore, there is an urgent need to design a discharging device for a concrete mixing plant to solve the problems of easy material jamming and damage of the existing discharging valve of the mixing plant and easy material scattering at the feeding port. Content of the Utility Model

[0009] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a discharging device for a concrete mixing plant.

[0010] The technical solution adopted by the present utility model to solve its technical problems is: a discharging device for a concrete mixing plant, including a discharging hopper and a discharging valve. The bottom of the discharging hopper is provided with a discharging port, and a discharging pipeline is connected at the discharging port. A discharging valve is installed on the discharging pipeline. A baffle is provided inside the discharging valve, and a scraper is connected to the outer peripheral edge of the baffle. A flexible hose is provided at the lower part of the discharging pipeline, and two adjusting cylinders are connected to the side surface of the flexible hose. The two adjusting cylinders are arranged at a 90° angle, and the adjusting cylinders control the outlet position of the flexible hose.

[0011] Specifically, the discharging hopper is fixedly installed on the installation frame. The discharging hopper is located below the mixer of the mixing plant, and a mixer truck drives into the installation frame. The feeding hopper of the mixer truck is located below the flexible hose.

[0012] Specifically, four crossbeams are provided in the middle of the installation frame. An adjusting cylinder is installed on the crossbeam in the driving direction of the mixer truck, and an adjusting cylinder is installed on the crossbeam in the side direction of the mixer truck.

[0013] Specifically, the end of the cylinder rod of the adjusting cylinder abuts against the outside of the flexible hose. The end of the cylinder rod of the adjusting cylinder is connected to a pulling rope, and the other end of the pulling rope is connected to the outer wall of the flexible hose. The adjusting cylinder controls the cylinder rod to push the flexible hose or pull the flexible hose through the pulling rope. The two adjusting cylinders jointly control the movement of the flexible hose in four directions.

[0014] Specifically, the bottom of the discharging pipeline is connected to an inclined pipeline. The outlet of the inclined pipeline faces the driving direction of the mixer truck, and the bottom of the inclined pipeline is connected to the flexible hose through a pipe clamp.

[0015] Specifically, a camera is installed on one side of the lower part of the inclined pipeline. The camera is located at the rear in the driving direction of the mixer truck, and the camera identifies the position of the feeding hopper of the mixer truck.

[0016] Specifically, the discharging valve adopts a butterfly valve. The discharging valve is installed on the discharging pipeline through the flange plates provided on both sides. A rotating shaft for controlling rotation is provided in the middle of the discharging valve. Semi-circular baffles are provided on the opposite sides of the rotating shaft. Scrapers are fixedly connected to the outside of the baffles. The scrapers adopt an arc shape adapted to the inside of the pipeline, and the width of the scrapers is greater than the thickness of the baffles.

[0017] The present utility model has the following beneficial effects:

[0018] The discharging device for the concrete mixing plant designed by the present utility model adopts a built-in butterfly valve structure, and a scraper structure is arranged on the outer periphery of the baffle. The width of the scraper is greater than the thickness of the baffle, so as to scrape away the materials in the valve cavity in advance, avoid the jamming of the baffle and the inner wall of the valve, improve the service life of the valve, and improve the production efficiency of concrete.

[0019] The discharging device of the concrete mixing plant designed by the utility model adds an inclined pipe and a flexible pipe at the lower part of the discharging pipe. The inclined pipe guides the discharged concrete to avoid splashing. The flexible pipe controls the discharging direction through two adjusting cylinders. The position of the feeding hopper of the mixing truck is identified by a camera, and the flexible pipe is controlled to be directly opposite to the feeding hopper to avoid material scattering. The discharging and filling are more accurate, the maintenance cost and production cost are reduced, and the working environment is protected. Description of the Drawings

[0020] Figure 1 It is the front view of the discharging device of the concrete mixing plant.

[0021] Figure 2 It is the right view of the discharging device of the concrete mixing plant.

[0022] Figure 3 It is the schematic installation structure diagram of the adjusting cylinder and the flexible pipe.

[0023] Figure 4 It is the schematic structure diagram of the discharging valve.

[0024] Figure 5 It is the schematic installation structure diagram of the baffle and the scraper.

[0025] In the figure: 1 - discharging hopper; 2 - discharging port; 3 - discharging valve, 3.1 - baffle, 3.2 - rotating shaft, 3.3 - scraper, 3.4 - flange; 4 - inclined pipe; 5 - flexible pipe; 6 - cross beam; 7 - adjusting cylinder; 8 - pull rope; 9 - camera; 10 - installation frame. Detailed Implementation Modes

[0026] Hereinafter, the technical solutions in the embodiments of the present utility model will be further described clearly and completely with reference to the accompanying drawings in the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] As Figures 1-5 shown, a discharging device of a concrete mixing plant includes a discharging hopper 1, a discharging port 2, a discharging valve 3, an inclined pipe 4, a flexible pipe 5, an adjusting cylinder 7 and a camera 9. The discharging hopper 1 is fixedly installed on the installation frame 10. The discharging hopper 1 is located below the mixer of the mixing plant. The mixing truck drives into the installation frame 10, and the feeding hopper of the mixing truck is located below the flexible pipe 5.

[0028] A discharging port 2 is provided at the bottom of the discharging hopper 1. A discharging pipe is connected to the discharging port 2. A discharging valve 3 is installed on the discharging pipe. A baffle 3.1 is arranged inside the discharging valve 3. The outer peripheral edge of the baffle 3.1 is connected to a scraper 3.3. The control mechanism of the discharging valve controls the rotation of the baffle 3.1 to open and close the valve cavity.

[0029] The discharge valve 3 is a butterfly valve. The discharge valve 3 is installed on the discharge pipeline through the flange plates 3.4 provided on both sides. The middle part of the discharge valve 3 is provided with a rotating shaft 3.2 for controlling rotation. The control mechanism of the discharge valve 3 controls the rotation of the rotating shaft 3.2. Semi-circular baffles 3.1 are provided on the relative two sides of the rotating shaft 3.2. A scraper 3.3 is fixedly connected to the outside of the baffle 3.1. The scraper 3.3 is in an arc shape adapted to the inner cavity of the discharge valve. The width of the scraper 3.3 is greater than the thickness of the baffle 3.1. The scraper 3.3 preferentially scrapes the materials in the valve cavity, avoiding jamming of the baffle 3.1 and the inner wall of the valve, improving the service life of the discharge valve 3, and improving the production efficiency of concrete.

[0030] The bottom of the discharge pipeline is connected to an inclined pipeline 4. The outlet of the inclined pipeline 4 faces the driving direction of the mixer truck. The bottom of the inclined pipeline 4 is connected to a hose 5 through a pipe clamp.

[0031] Two adjusting cylinders 7 are connected to the side of the hose 5. The two adjusting cylinders 7 are arranged at a 90° angle. The adjusting cylinder 7 controls the outlet position of the hose 5.

[0032] Four cross beams 6 are provided in the middle of the installation frame 10. An adjusting cylinder 7 is installed on the cross beam 6 in the driving direction of the mixer truck, and an adjusting cylinder 7 is installed on the cross beam 6 in the side direction of the mixer truck.

[0033] The end of the cylinder rod of the adjusting cylinder 7 abuts against the outside of the hose 5. The end of the cylinder rod of the adjusting cylinder 7 is connected to a pull rope 8. The other end of the pull rope 8 is connected to the outer wall of the hose 5. The adjusting cylinder 7 controls the cylinder rod to push the hose 5 or pull the hose 5 closer through the pull rope 8. The two adjusting cylinders 7 jointly control the movement of the hose 5 in four directions. When the hose 5 does not need to change its position, the cylinder rods of the two adjusting cylinders 7 abut against the outer wall of the hose 5 to provide support for the hose 5. When the hose 5 needs to move to the distal end, the adjusting cylinder 7 is controlled to extend according to the need to push the hose 5 to the distal end. When the hose 5 needs to move to the proximal end, the adjusting cylinder 7 is controlled to retract according to the need. First, a small section of the pull rope 8 is retracted, and then the required distance is retracted. The pull rope 8 provides a flexible connection between the adjusting cylinder 7 and the hose 5, facilitating the provision of an unrestricted force in the 90° direction when the other adjusting cylinder 7 expands and contracts.

[0034] A camera 9 is installed on one side of the lower part of the inclined pipeline 4. The camera 9 is located at the rear in the driving direction of the mixer truck. The camera 9 identifies the position of the feed hopper of the mixer truck and controls the actions of the two adjusting cylinders 7.

[0035] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, shall fall within the protection scope of the present utility model.

[0036] The technologies, shapes, and structures not described in detail in this utility model are all well-known technologies.

[0037] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A discharging device for a concrete mixing station, characterized in that: It includes a discharging hopper and a discharging valve. A discharging port is provided at the bottom of the discharging hopper, the discharging port is connected to a discharging pipe, a discharging valve is installed on the discharging pipe, a baffle is provided inside the discharging valve, the outer peripheral edge of the baffle is connected to a scraper, a hose is provided at the lower part of the discharging pipe, two adjusting cylinders are connected to the side of the hose, the two adjusting cylinders are set at an angle of 90 degrees, and the adjusting cylinders control the outlet position of the hose.

2. The concrete mixing station discharging device according to claim 1, characterized in that: The discharging hopper is fixedly mounted on the mounting frame. The discharging hopper is located below the mixer of the mixing station. A mixing truck is driven into the mounting frame. The feeding hopper of the mixing truck is located below the hose.

3. The concrete mixing station discharging device according to claim 2, characterized in that: Four crossbeams are arranged in the middle of the installation frame, an adjusting cylinder is installed on the crossbeam in the driving direction of the mixer truck, and an adjusting cylinder is installed on the crossbeam in the side direction of the mixer truck.

4. The concrete mixing station discharging device according to claim 3, characterized in that: The end of the cylinder rod of the adjusting cylinder is against the outside of the hose, the end of the cylinder rod of the adjusting cylinder is connected to a pull rope, the other end of the pull rope is connected to the outer wall of the hose, the adjusting cylinder controls the cylinder rod to push the hose or pull the hose closer through the pull rope, and the two adjusting cylinders jointly control the movement of the hose in four directions.

5. The discharging device of a concrete mixing station according to claim 2, characterized in that: The bottom of the discharge pipe is connected to an inclined pipe, the outlet of the inclined pipe faces the direction in which the mixer truck enters, and the bottom of the inclined pipe is connected to a hose through a pipe clamp.

6. The discharging device of the concrete mixing station according to claim 5, characterized in that: A camera is installed on one side of the lower part of the inclined pipeline. The camera is located at the rear of the mixer truck's driving direction. The camera identifies the position of the mixer truck's feed hopper.

7. The discharging device of a concrete mixing station according to claim 1, characterized in that: The discharge valve adopts a butterfly valve, which is installed on the discharge pipe through flanges on both sides. A rotating shaft for controlling rotation is provided in the middle of the discharge valve, and semicircular baffles are provided on the opposite sides of the rotating shaft. The outside of the baffle is fixedly connected to a scraper, which adopts an arc shape that adapts to the inside of the pipe, and the width of the scraper is greater than the thickness of the baffle.

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