Concrete powder stable supply system

Abstract

The concrete powder stable supply system comprises a conical tank body and a pressure pump, the tank body is sealed, the bottom of the tank body is connected with a control chamber, a rotator is arranged in the control chamber, the top of the tank body is provided with a pressure pipe, the bottom of the control chamber is connected with a driving pipe, and the driving pipe is connected with the pressure pump. An accelerator is loaded into the vacuum tank body, uniform pressure is applied through the pressurizing pipe, output of the accelerator is controlled, the accelerator can rotate uniformly through the rotator, and the accelerator can be conveyed to the control chamber through the pressurizing pipe, so that the accelerator can be conveyed to the control chamber, and the accelerator can be conveyed to the control chamber. The quantitative accelerator and pressurized gas output and input by the pressure pump are mixed and guided into the concrete through the mixing pipe, so that when the powdery accelerator is guided into the flow-state concrete pressure pipe of the sprayed concrete pouring device, the powdery accelerator can be quantitatively supplied, and the accelerator-transported concrete under the pressure can be uniformly distributed and stirred.

Description

Technical Field

[0001] This utility model relates to the field of concrete powder conveying technology, and more specifically, to a stable concrete powder supply system. Background Technology

[0002] Concrete accelerators are admixtures that enable concrete to set and harden quickly. They are mainly used in shotcrete and shotcrete projects. With economic development and technological progress, the application of accelerators is becoming increasingly widespread. They are widely used in underground engineering, tunnel engineering, dam slope reinforcement, leak sealing projects, slipform construction, road repair, and shotcrete and anchor support. Accelerators have attracted the attention of engineering and technical personnel around the world due to their unique effects and flexible adaptability.

[0003] A concrete spraying machine is a machine that uses compressed air to continuously transport concrete along a pipeline and spray it onto the construction surface. They can be divided into two types: dry spraying machines and wet spraying machines. The former uses pneumatic conveying of dry-mixed materials, which are then mixed with pressurized water at the nozzle before being sprayed out; the latter uses pneumatic or concrete pumps to transport the concrete mixture through the nozzle and spray it out.

[0004] Currently, the addition of powdered accelerators during the liquid concrete conveying process of wet shotcrete involves connecting a concrete pipe to a hopper containing the powdered accelerator and supplying compressed air to it. This is a relatively simple pipe injection method; however, it suffers from drawbacks, such as the difficulty in injecting a fixed amount of accelerator into the conveying equipment and the near impossibility of uniformly mixing the concrete and accelerator.

[0005] Therefore, it is necessary to propose a stable supply system for concrete powder. Utility Model Content

[0006] This invention provides a stable supply system for concrete powder to solve the technical problem that the existing concrete powder accelerator is difficult to supply stably, affecting the uniformity of concrete mixing.

[0007] According to one aspect of the present invention, a stable supply system for concrete powder is provided, which is installed on an engineering vehicle. The system includes a conical tank and a pressure pump. The tank is sealed, and a control room is connected to the bottom of the tank. A rotator is installed in the control room. A pressure pipe is provided at the top of the tank. A drive pipe is connected to the bottom of the control room. The output end of the control room is connected to the output end of the pressure pump and a mixing pipe is connected thereto.

[0008] Preferably, based on the above scheme, a motor is installed outside the control room to drive the rotator to rotate. The rotator includes a rotating shaft and blades mounted on the rotating shaft, and the ends of the blades abut against the inner edge surface of the control room.

[0009] Based on the above scheme, preferably, the rotating shaft is provided with multiple spaced partitions, which divide the rotator into multiple interconnected units.

[0010] Based on the above scheme, a preferred embodiment is that the pressurization tube and the drive tube are connected to an external vacuum pump.

[0011] Preferably, based on the above scheme, the drive tube is located below the output tube of the control chamber, and the inner bottom edge of the control chamber forms a wedge-shaped surface from the drive tube side to the output tube side.

[0012] Based on the above scheme, a preferred embodiment is provided in which a triangular butterfly plate is installed inside the mixing tube, which coincides with the center line of the mixing tube.

[0013] This utility model discloses a stable supply system for concrete powder. By loading an accelerator into a vacuum tank and applying uniform pressure through a pressurization pipe to control the output of the accelerator, a rotator can be used to rotate the system evenly. A fixed amount of accelerator is mixed with pressurized gas output from a pressurization pump and introduced into the concrete through a mixing pipe. This allows for the metered supply of powdered accelerator when it is introduced into the fluid concrete pressure pipe of the shotcrete pouring device, and the accelerator-concrete mixture under pressure can be evenly distributed and mixed. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0015] Figure 1 This is a schematic diagram of the concrete powder stable supply system of this utility model;

[0016] Figure 2 This is a schematic diagram of the concrete powder stable supply system of this utility model;

[0017] Figure 3 This is a structural diagram of the tank and control room of this utility model;

[0018] Figure 4 This is a cross-sectional view of the tank and control room of this utility model;

[0019] Figure 5 This is a perspective view of the rotator of this utility model;

[0020] Figure 6 This is a perspective view showing the connection between the mixing tube and the output tube of this utility model.

[0021] Figure 7 This is a perspective view of the mixing tube of this utility model;

[0022] Figure 8 This is a partial cross-sectional view of the mixing tube of this utility model;

[0023] Figure 9 This is a cross-sectional view of the mixing tube of this utility model;

[0024] Explanation of icon numbers:

[0025] 1. Engineering vehicles;

[0026] 2. Tank body;

[0027] 3. Control room; 31. Wedge-shaped surface; 32. Rotator; 33. Motor; 34. Shaft; 35. Blade; 36. Baffle; 37. Unit; 38. Output pipe; 39. Nozzle;

[0028] 4. Pressurization tube; 41. Drive tube; 42. Mixing tube; 43. Vacuum pump;

[0029] 5. Booster pump;

[0030] 6. Butterfly board; 61. Inclined board. Detailed Implementation

[0031] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0032] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0033] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0034] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0035] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0036] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0038] Please see Figure 1 and combined Figure 2 , Figure 3 and Figure 4 As shown, a concrete powder stable supply system of this utility model is installed on an engineering vehicle 1. The system includes a conical tank 2 and a pressure pump 5. The tank 2 is sealed, and a control chamber 3 is connected to the bottom of the tank 2. A rotator 32 is installed in the control chamber 3. A pressure pipe 4 is installed at the top of the tank 2. A drive pipe 41 is connected to the bottom of the control chamber 3. The output end of the control chamber 3 is connected to the output end of the pressure pump 5 and a mixing pipe 42 is connected to it.

[0039] Specifically, the pressure pump 5 compresses and delivers aggregates, cement, and fluid concrete into the mixing pipe 42 through a pressure pipe. Combined with the downward pressure applied to the top of the tank 2 by the pressure pipe 42, the driving pipe 41 delivers pushing pressure to drive the accelerator in the tank 2 to be quantitatively delivered into the mixing pipe 42 under the action of the rotator 32. It is then rapidly and quantitatively mixed with the concrete delivered by the pressure pipe at the end of the pressure pump 5, and finally output through the nozzle 39 at the end of the mixing pipe 42.

[0040] like Figure 5 As shown, the control room 3 of this utility model is equipped with a motor 33 to drive the rotator 32 to rotate. The rotator 32 includes a rotating shaft 34 and an arc-shaped blade 35 mounted on the rotating shaft 34. The end of the blade 35 abuts against the inner edge surface of the control room 3.

[0041] That is, after pressurized air is blown into the top of the tank 2 through the pressurizing pipe 4, a pressurizing force is applied downward to the accelerator inside the tank 2, so that the flocculant is squeezed downward. During the squeezing process, the gap stability between the accelerators inside the tank 2 can be ensured. By controlling the movement of the motor 33, the rotation of the rotator 32 is precisely controlled, and the stable output of the accelerator is controlled. At the same time, in order to ensure that the flocculant is mixed evenly, after the flocculant is quantitatively delivered to the bottom of the control room 3 through the rotator 32, pressurized air is added again through the drive pipe 41 at the bottom of the control room. This makes the accelerator loose and mixes it thoroughly and quickly with the fluid concrete in the pressure pipe at the output end of the pressurizing pump 5, ensuring the uniformity of the mixture.

[0042] It is worth noting that the rotating shaft 34 of this utility model is provided with multiple spaced partitions 36, which divide the rotator 32 into multiple interconnected units 37. For details of the structure, please refer to [link / reference needed]. Figure 5 As shown, preferably, the pressurizing pipe 4 and the driving pipe 41 of this utility model are connected to an external vacuum pump 43 to provide compressed air, which provides a downward force to the top of the tank 2. At the same time, the driving pipe 41 is used to make the quick-setting agent quickly fluffy, ensuring its subsequent mixing uniformity.

[0043] In this invention, the drive pipe 41 is located below the output pipe 38 of the control chamber 3, and the inner bottom edge of the control chamber 3 forms a wedge-shaped surface 31 from bottom to top from the drive pipe 41 side to the output pipe 38 side. This wedge-shaped surface 31 design extends the interaction time between compressed air and the accelerator, ensuring that the accelerator can effectively contact the compressed air and guaranteeing the bulkiness of the accelerator. For details of the structure, please refer to [link to specific structural details]. Figure 6 As shown.

[0044] Furthermore, the diagram Figure 7 , Figure 8 and Figure 9 As shown, the present invention has a triangular butterfly plate 6 installed inside the mixing tube 42, which coincides with the center line of the mixing tube 42, and a pair of X-shaped inclined plates 61 arranged on both sides of the stacked plate.

[0045] When the fluffy quick-setting agent and concrete are introduced into the two sides of the butterfly plate 6 respectively, they are graded once. The mixture on both sides mixes alternately from bottom to top and then from top to bottom along the inclined surface, forming an airflow that twists and turns to ensure the uniformity of the mixture.

[0046] This utility model discloses a stable supply system for concrete powder. When introducing powdered accelerator into the fluid concrete pressure pipe of the shotcrete pouring device, the powdered accelerator can be quantitatively supplied, and the accelerator-transported concrete under pressure can be evenly distributed and mixed.

[0047] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A concrete powder stabilizing supply system installed on a construction vehicle, characterized by, The system comprises a conical tank body in a sealed shape, a control chamber connected to the bottom of the tank body, a rotator installed in the control chamber, a pressurizing pipe arranged at the top of the tank body, a driving pipe connected to the bottom of the control chamber, and a mixing pipe connected between the output end of the control chamber and the output end of the pressurizing pump.

2. A concrete powder stabilisation system as claimed in claim 1, wherein, A motor is installed outside the control chamber to drive the rotation of the rotator, the rotator comprises a rotating shaft and a blade installed on the rotating shaft, and the end of the blade is in contact with the inner edge surface of the control chamber.

3. A concrete powder stabilisation system as claimed in claim 2, wherein, The rotating shaft is provided with a plurality of partition plates arranged at intervals to divide the rotator into a plurality of single bodies connected to each other.

4. A stabilized supply of concrete powder as defined in claim 1, wherein, The pressurizing pipe and the driving pipe are connected with a vacuum pump.

5. A stabilized supply of concrete powder as defined in claim 1, wherein, The driving pipe is arranged below the output pipe of the control chamber, and the inner bottom edge surface of the control chamber forms a wedge-shaped surface from bottom to top from the side of the driving pipe to the side of the output pipe.

6. A stabilized supply of concrete powder as defined in claim 1, wherein, A butterfly plate in a triangular shape is installed in the mixing pipe and coincides with the center line of the mixing pipe.

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