Concrete raw material conveying system

Abstract

The concrete raw material conveying system comprises a stirring kettle, a screw conveyor and a conveying hose, and a partition plate is arranged at the bottom of the stirring kettle to divide the stirring kettle into an upper kettle body and a lower kettle body. The stirring kettle is divided into the upper kettle body and the lower kettle body by the partition plate, concrete raw materials in the stirring kettle can be rapidly stirred and mixed by arranging the stirring shaft with the stirring blades in the upper kettle body, and the mixed concrete enters the feeding hole of the screw conveyor through the discharging hole; and the uniformly mixed concrete is guided to a corresponding position through a conveying hose by the screw conveyor. The screw conveyor is simple in structure and even in mixing, the screw can be controlled by the motor to rotate forwards or backwards, concrete raw material mixtures can be discharged or recycled, the direction of the conveying hose can be freely adjusted, and the cement mixtures can be accurately and rapidly placed on fine parts through the discharging head.

Description

Technical Field

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

[0002] With the development of the construction and transportation industries, ready-mixed concrete has been widely adopted. Ready-mixed concrete refers to concrete mixtures made from cement, aggregates, water, and additives added as needed, in specific proportions, measured and mixed at a batching plant, and then transported to the site of use within a specified time. This centralized mixing method facilitates the adoption of advanced technologies, professional production management, high equipment utilization, and accurate measurement. The pre-mixed dry materials are thoroughly mixed in the concrete mixer before being loaded into concrete mixer trucks. Consequently, the product quality is high, material consumption is low, efficiency is high, costs are low, working conditions are improved, and environmental pollution is reduced.

[0003] In the concrete production process, the proportion and order of raw material input have a crucial impact on the quality of concrete. At the same time, there are also requirements for the mixing rate of raw materials. It is necessary to mix at a constant rate. Mixing too fast or too slow will lead to a decrease in concrete quality, which will result in low concrete production efficiency. Since the mixing speed is constant, the only way to improve production efficiency is to use other methods, such as increasing the feeding rate and reducing the feeding time. However, if all the raw materials are poured in at once, it will increase the unevenness of the mixing of raw materials, which will lead to an increase in mixing time.

[0004] Therefore, it is necessary to propose a concrete raw material conveying system that can rapidly mix and stir concrete raw materials and achieve synchronous conveying, which is of great significance for improving the efficiency of concrete raw material conveying. Summary of the Invention

[0005] This invention provides a concrete raw material conveying system to solve the problem of low conveying efficiency caused by excessively long mixing time in existing concrete raw material conveying systems.

[0006] According to one aspect of the present invention, a concrete raw material conveying system is provided, including a mixing tank, a screw conveyor, and a conveying hose. The bottom of the mixing tank is provided with a partition to divide it into an upper tank body and a lower tank body. A discharge port is provided on the partition. The screw conveyor is installed in the lower tank body, and the inlet of the screw conveyor is connected to the discharge port. A stirring shaft with stirring blades is installed in the upper tank body. The output end of the screw conveyor extends to the outside of the mixing tank and is connected to the conveying hose. A discharge head is installed on the conveying hose.

[0007] Based on the above scheme, preferably, the screw conveyor includes a conveying pipe and a screw, the screw is inserted into the conveying pipe and a screw ribbon is provided on the screw, one end of the conveying pipe is equipped with a conveying motor, and the output end of the conveying motor is connected to the screw drive.

[0008] Based on the above scheme, preferably, the feed inlet is located on the conveying pipe and is sealed and connected to the discharge outlet.

[0009] Preferably, based on the above scheme, the bottom of the mixing vessel is provided with a flange for the delivery pipe to exit, and one end of the delivery hose is fitted onto the flange and locked by a clamp.

[0010] Based on the above scheme, preferably, the conveying hose is connected to the discharge head through a connector, and the connector is provided with a handle.

[0011] Based on the above scheme, preferably, one end of the discharge head is flat and duckbill-shaped, and the other end of the discharge head is a circular tubular structure with external threads. The inner edge of the connector is provided with an internal thread that matches the external threads. The connector and the conveying hose are locked together by a clamp.

[0012] Based on the above scheme, preferably, the stirring blade includes a plug-in seat with a plug hole, an L-shaped support rod and a connecting plate. The support rod is evenly spaced and connected to the outer edge of the plug-in seat. The connecting plate is installed at the end of the support rod. Parallel arc-shaped scrapers are connected to both ends of the connecting plate. The two arc-shaped scrapers are connected by a lower scraper. The lower scraper is connected to the adjacent connecting plate by a connecting rod.

[0013] Preferably, based on the above scheme, the bottom of the stirring vessel is equipped with rollers.

[0014] This utility model discloses a concrete raw material conveying system, which uses a partition to divide the mixing tank into an upper tank body and a lower tank body. By setting a stirring shaft with stirring blades in the upper tank body, the concrete raw materials in the mixing tank can be quickly stirred and mixed. The mixed concrete is discharged through the discharge port to the inlet of the screw conveyor. The screw conveyor delivers the uniformly mixed concrete to the corresponding location through the conveying hose.

[0015] This utility model discloses a concrete raw material conveying system with a simple structure, uniform mixing, and a screw conveyor that can be controlled by a motor to rotate the screw forward or backward, enabling the discharge or retraction of the concrete raw material mixture. The direction of the conveying hose can be freely adjusted, and the cement mixture can be accurately and quickly placed into small parts through the discharge head. Attached Figure Description

[0016] 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:

[0017] Figure 1 This is a schematic diagram of the concrete raw material conveying system of this utility model;

[0018] Figure 2 This is a side view of the concrete raw material conveying system of this utility model;

[0019] Figure 3 This is a perspective view of the stirring blade of this utility model;

[0020] Figure 4 This is a top view of the stirring blade of this utility model;

[0021] Explanation of icon numbers:

[0022] 1. Mixing vessel; 11. Baffle; 12. Upper vessel body; 13. Lower vessel body; 14. Flange; 15. Clamp; 16. Discharge port; 17. Roller;

[0023] 2. Stirring shaft; 21. Stirring blade; 22. Plug-in socket; 23. Plug-in hole; 24. Support rod; 25. Connecting plate; 26. Arc-shaped scraper; 27. Lower scraper; 28. Connecting rod;

[0024] 3. Screw conveyor; 31. Conveying pipe; 32. Screw; 33. Feed inlet; 34. Ribbon; 35. Conveyor motor;

[0025] 4. Connector; 41. Handle; 42. External thread;

[0026] 5. Delivery hose;

[0027] 6. Discharge head; 61. Internal thread. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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."

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Please see Figure 1 and combined Figure 2 and Figure 3 As shown, a concrete raw material conveying system of this utility model includes a mixing tank 1 and a conveying hose 5. The bottom of the mixing tank 1 is provided with a partition 11 to divide it into an upper tank body 12 and a lower tank body 13. The upper tank body 12 is used for mixing concrete raw materials, while the lower tank body 13 is used to install a power source and a screw conveyor 3. The partition 11 is provided with a discharge port 16, and preferably an electrically controlled valve (not shown) is provided at the discharge port 16.

[0036] In this invention, a screw conveyor 3 is installed inside the lower vessel 13, and the feed inlet 33 of the screw conveyor 3 is connected to the discharge outlet 16 through an electrically controlled valve. The upper vessel 12 is equipped with a stirring shaft 2 with stirring blades 21. The output end of the screw conveyor 3 extends to the outside of the mixing vessel 1 and is connected to a conveying hose 5. A discharge head 6 is installed on the conveying hose 5.

[0037] In use, concrete raw materials such as water, lightweight aggregate, and cement are introduced into the mixing tank 1 according to the proportion. The mixing shaft 2 inside the upper tank body 12 rotates to drive the mixing blades 21 to achieve rapid mixing of the concrete raw materials. After the concrete raw materials are evenly mixed, the electrically controlled valve is opened to introduce the concrete raw materials into the screw conveyor 3. The screw conveyor 3 guides the concrete into the conveying hose 5, and then outputs it quickly and accurately through the discharge head 6.

[0038] Specifically, the screw conveyor 3 of this utility model includes a conveying pipe 31 and a screw 32. The screw 32 is inserted into the conveying pipe 31 and a screw ribbon 34 is provided on the screw 32. A conveying motor 35 is installed at one end of the conveying pipe 31. The output end of the conveying motor 35 is connected to the screw 32 for driving. The feed inlet 33 is provided on the conveying pipe 31 and is sealed to the discharge outlet 16.

[0039] It should be noted that the rotary motor that drives the stirring shaft 2 to rotate is installed on the upper part of the conveying pipe 31 of the lower vessel 13.

[0040] In use, as needed, the conveyor motor 35 operates, driving the screw 32 to rotate, which in turn drives the screw ribbon 34 to rotate. The rotation of the screw ribbon 34 enables the rapid conveying of the mixed concrete raw materials in the conveyor pipe 31. During use, the excess raw materials can be recovered by controlling the reverse rotation of the conveyor motor 35.

[0041] It should be noted that this utility model can achieve the mixing and conveying of powder materials such as cement and lightweight aggregates, and can also add water to the raw materials such as cement and lightweight aggregates for wet mixing.

[0042] The bottom of the mixing vessel 1 of this utility model is provided with a flange 14 for the conveying pipe 31 to be led out. One end of the conveying hose 5 is fitted onto the flange 14 and locked by a clamp 15. The conveying hose 5 is connected to the discharge head 6 through a connector 4. The connector 4 is provided with a handle 41. The direction of the conveying hose 5 and the discharge head 6 can be quickly controlled by the handle 41, which facilitates accurate conveying.

[0043] Preferably, one end of the discharge head 6 of this utility model is flat and duckbill-shaped, and the other end of the discharge head 6 is a circular tubular structure with an external thread 42. The inner edge of the connector 4 is provided with an internal thread 61 that matches the external thread 42. The connector 4 and the conveying hose 5 are locked together by a clamp 15.

[0044] For a detailed explanation of the technical solution of this utility model, please refer to the following: Figure 4As shown, the stirring blade 21 of this utility model includes a connector 22, a support rod 24, and a connecting plate 25 that are inserted into the stirring shaft 2. The connector 22 is provided with a connector hole 23, into which the stirring shaft 2 is inserted. Preferably, there are four support rods 24 in an L-shape, which are evenly spaced and installed on the outer edge of the connector 22. The other end of the support rod 24 is equipped with a connecting plate 25. Both ends of the connecting plate 25 are equipped with arc-shaped scrapers 26. Figure 4 As shown, the bottoms of the two arc-shaped scrapers 26 are connected by a lower scraper 27, and the lower scraper 27 is connected to the adjacent connecting plate 25 by a connecting rod 28.

[0045] During the mixing process, the rotating shaft drives the arc-shaped scraper 26 to act on the concrete raw materials, realizing their up-and-down tumbling and mixing. By using the bottom scraper 27, the concrete raw materials can be effectively prevented from settling at the bottom, avoiding the problem of uneven mixing and improving its mixing efficiency and effect.

[0046] The bottom of the stirring vessel 1 of this utility model is equipped with rollers 17 for easy adjustment of its position.

[0047] The present invention discloses a concrete raw material conveying system, which uses a partition 11 to divide the mixing tank 1 into an upper tank body 12 and a lower tank body 13. By setting a stirring shaft 2 with stirring blades 21 in the upper tank body 12, the concrete raw materials in the mixing tank 1 can be quickly stirred and mixed. The mixed concrete is discharged into the feed port 33 of the screw conveyor 3 through the discharge port 16. The screw conveyor 3 then discharges the uniformly mixed concrete to the corresponding position through the conveying hose 5.

[0048] This utility model discloses a concrete raw material conveying system with a simple structure, uniform mixing, and the screw conveyor 3 can be controlled by a motor to rotate the screw 32 forward or backward, which can realize the discharge or recovery of the concrete raw material mixture. The direction of the conveying hose 5 can be freely adjusted, and the cement mixture can be accurately and quickly placed into small parts through the discharge head 6.

[0049] 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 raw material conveying system, characterized in that, The device includes a mixing tank, a screw conveyor, and a conveying hose. The bottom of the mixing tank is equipped with a partition that divides it into an upper tank body and a lower tank body. The partition has a discharge port. The screw conveyor is installed in the lower tank body, and the inlet of the screw conveyor is connected to the discharge port. The upper tank body is equipped with a stirring shaft with stirring blades. The output end of the screw conveyor extends to the outside of the mixing tank and is connected to the conveying hose. The conveying hose is equipped with a discharge head.

2. The concrete raw material conveying system as described in claim 1, characterized in that, The screw conveyor includes a conveying pipe and a screw. The screw passes through the conveying pipe and is provided with a screw ribbon. A conveying motor is installed at one end of the conveying pipe, and the output end of the conveying motor is connected to the screw drive.

3. A concrete raw material conveying system as described in claim 2, characterized in that, The feed inlet is located on the conveying pipe and is sealed to the discharge outlet.

4. A concrete raw material conveying system as described in claim 2, characterized in that, The bottom of the mixing vessel is provided with a flange for the delivery pipe to exit, and one end of the delivery hose is fitted onto the flange and locked in place by a clamp.

5. A concrete raw material conveying system as described in claim 2, characterized in that, The conveying hose is connected to the discharge head via a connector, and the connector is equipped with a handle.

6. A concrete raw material conveying system as described in claim 5, characterized in that, One end of the discharge head is flat and duckbill-shaped, and the other end of the discharge head is a circular tubular structure with external threads. The inner edge of the connector is provided with an internal thread that matches the external thread. The connector and the conveying hose are locked together by a clamp.

7. A concrete raw material conveying system as described in claim 1, characterized in that, The stirring blade includes a plug-in seat with a plug hole, an L-shaped support rod, and a connecting plate. The support rod is evenly spaced and connected to the outer edge of the plug-in seat. The connecting plate is installed at the end of the support rod. Parallel arc-shaped scrapers are connected to both ends of the connecting plate. The two arc-shaped scrapers are connected by a lower scraper. The lower scraper is connected to the adjacent connecting plate by a connecting rod.

8. A concrete raw material conveying system as described in claim 1, characterized in that, The bottom of the mixing vessel is equipped with rollers.

Images