Raw material proportioning equipment for cement concrete preparation

Abstract

The utility model discloses raw material proportioning equipment for cement concrete preparation, and relates to the technical field of concrete preparation, the raw material proportioning equipment sequentially comprises a storage hopper, a metering hopper and an unloading conveying belt from top to bottom, the output end of the storage hopper and the output end of the metering hopper face downwards and can be closed, a weighing mechanism is arranged on the metering hopper and used for weighing raw materials, and the unloading conveying belt is arranged on the unloading conveying belt. The metering hopper is of a fully-sealed hopper-shaped structure, and the output end of the storage hopper is connected with a soft sleeve and is connected and communicated with the upper portion of the metering hopper in a sealed mode through the soft sleeve. According to the utility model, the soft sleeve is arranged between the storage hopper and the metering hopper for sealing communication, the sealing communication plays a role in sealing and protecting fine and easily-scattered raw materials such as cement, the raw materials are prevented from being scattered all around to cause raw material loss and environmental pollution, and the soft sleeve is of a soft structure and does not affect the weighing of the metering hopper.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete preparation, in particular to a raw material proportioning device for preparing cement concrete. Background Art

[0002] Concrete batching machine, also known as batching machine, automatic sand and gravel batching machine, is an automated equipment used for quantitative distribution of various materials such as sand and gravel. It is mainly used in the concrete construction industry to replace manual scales or volume measurement. Concrete batching machine is mainly composed of three parts: feeding system, weighing system and electrical control system. The feeding system loads various raw materials and discharges them to the weighing system to achieve the weighing ratio of the raw materials.

[0003] Concrete raw materials contain fine and easy-to-scatter powdered raw materials such as cement, and the existing batching machine has a feeding system part and a weighing system part that are not sealed and connected, and the top of the weighing hopper of the weighing system part is also an open structure. During the feeding process, the raw materials are easy to scatter, affecting the construction environment and causing the loss of raw materials. In large-scale proportioning equipment, the amount of raw materials discharged is large, and a large amount of scattered raw materials will also affect the weighing accuracy of the raw materials.

[0004] Therefore, it is necessary to invent a raw material proportioning device for preparing cement concrete to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a raw material proportioning device for preparing cement concrete, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material proportioning equipment for preparing cement concrete, comprising, from top to bottom, a storage hopper, a measuring hopper and a discharge conveyor belt, the output ends of the storage hopper and the measuring hopper are both downward and closable, a weighing mechanism is provided on the measuring hopper for weighing the raw materials, the measuring hopper is a fully sealed hopper-shaped structure, the output end of the storage hopper is connected with a soft sleeve and is connected and sealed to the upper part of the measuring hopper through the soft sleeve, an induced draft mechanism is installed on the upper part of one side wall of the measuring hopper, the induced draft mechanism comprises a dust suppression net and an induced draft fan, the dust suppression net is arranged at the input end of the induced draft fan, and the input end of the induced draft fan is connected to the inner cavity of the measuring hopper.

[0007] Optionally, the storage hopper and the unloading conveyor belt are independently arranged, and the weighing mechanism includes a weighing sensor and a suspension chain. The suspension chain is arranged in multiple pieces, one end of which is fixedly connected to the storage hopper, and the other end is connected to the weighing sensor and connected to the measuring hopper to lift the measuring hopper.

[0008] Optionally, a dust suppression cover is provided on the upper part of the unloading conveying belt and a feeding gap is left between the two, and one end of the dust suppression cover close to the output end of the unloading conveying belt is open.

[0009] Optionally, the output end of the metering hopper is sealed and connected with a soft sleeve, and the soft sleeve penetrates the upper part of the dust suppression cover and is connected with the feeding gap.

[0010] Optionally, valves are installed at the output end of the storage hopper and the output end of the measuring hopper.

[0011] Optionally, an opening is provided on an upper portion of one side wall of the metering bucket, the dust suppression net bolts are detachably and sealingly installed at the opening, and the induced draft fan bolts are detachably installed on the metering bucket.

[0012] Optionally, a partition is fixedly mounted on the inner wall of the measuring hopper, the partition is located at the lower part of the opening and is not located at the lower part of the output end of the storage hopper, and the partition is arranged to be tilted downward.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model provides a soft sleeve between the storage hopper and the measuring hopper for sealed connection. The sealed connection plays a sealing and protective role, especially for fine and easy-to-scatter raw materials such as cement, to avoid the loss of raw materials and pollution of the environment caused by scattering. The soft sleeve is a soft structure and does not affect the weighing of the measuring hopper.

[0015] 2. The utility model is provided with an air induction mechanism on the measuring bucket, which is used to quickly absorb the raw materials scattered on the upper part of the measuring bucket to one side, so as to avoid a large amount of raw materials affecting the weighing accuracy of the measuring bucket in a scattered state, and after the scattered raw materials are stabilized, it is beneficial to discharge the raw materials to the maximum extent and improve the raw material discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall vertical structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the vertical structure of the metering bucket of the utility model.

[0018] In the figure: 1. storage hopper; 2. measuring hopper; 3. unloading conveyor belt; 4. weighing mechanism; 401. weighing sensor; 402. hanging chain; 5. dust suppression hood; 6. soft cover; 7. induced draft mechanism; 701. dust suppression net; 702. induced draft fan; 8. valve; 9. opening; 10. partition. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] The utility model provides Figure 1-2 A raw material proportioning equipment for preparing cement concrete is shown, which includes a storage hopper 1, a metering hopper 2 and a discharge conveyor belt 3 from top to bottom. The storage hopper 1 is supported and placed by a bracket, and the discharge conveyor belt 3 is placed on the ground or fixed on the bracket of the storage hopper 1. A weighing mechanism 4 is provided on the metering hopper 2 for weighing raw materials. The weighing mechanism 4 includes a weighing sensor 401 and a suspension chain 402. The suspension chain 402 is provided in multiple pieces and arranged in a dispersed manner. One end of the suspension chain 402 is fixedly connected to the storage hopper 1, and the other end is connected to the weighing sensor 401. The other end of the weighing sensor 401 is fixedly connected to the metering hopper 2. Under the adaptation of the suspension chain 402 and the weighing sensor 401, the metering hopper 2 is lifted and weighed. The two ends of the weighing sensor 401 are fixedly connected by a detachable fixed connection, including but not limited to screw nut adaptation fixation and lock fixation. The detachable fixed connection facilitates the maintenance and replacement of the weighing sensor 401.

[0024] The storage hopper 1 is configured to have multiple or multiple storage cavities divided in one hopper for storing different raw materials. The bottom of the storage hopper 1 is an output end and is provided with a valve 8 for controlling the discharge of raw materials in the storage hopper 1. The output end of the valve 8 is sealed and connected with a soft sleeve 6. The metering hopper 2 is a fully sealed hopper-shaped structure. The output end of the soft sleeve 6 is sealed and connected with the top of the metering hopper 2 and penetrates the metering hopper 2 to communicate with its inner cavity, so as to achieve sealed communication between the storage hopper 1 and the metering hopper 2. The sealed communication plays a sealing and protective role, especially for delicate and easily scattered raw materials such as cement, to avoid the loss of raw materials and pollution of the environment caused by scattering. The soft sleeve 6 is made of soft fabric and has a soft structure, so as to avoid the influence of hard connection on the weighing of the metering hopper 2.

[0025] An air induced mechanism 7 is installed on the upper part of one side wall of the weighing bucket 2. The air induced mechanism 7 includes a dust suppression net 701 and an induced draft fan 702. An opening 9 is opened on the upper part of one side wall of the weighing bucket 2. The dust suppression net 701 is detachably and sealedly installed at the opening 9 with bolts. The input end of the induced draft fan 702 faces the dust suppression net 701 and is detachably and boltedly installed on the weighing bucket 2. Under the suction force of the induced draft fan 702, the raw materials scattered on the upper part of the weighing bucket 2 are quickly absorbed to one side to avoid a large amount of raw materials from affecting the weighing accuracy of the weighing bucket 2 in a scattered state. After the scattered raw materials are stabilized, it is beneficial to discharge the raw materials to the maximum extent and improve the raw material discharge efficiency. The inner wall of the measuring hopper 2 is welded and fixed with a partition 10, which is located at the lower part of the opening 9 and not at the lower part of the output end of the storage hopper 1. The raw materials discharged from the storage hopper 1 do not collide with the partition 10, which does not affect its stable discharge. Under the partition 10, the induced draft fan 702 is prevented from sucking up fine raw materials such as cement at the bottom of the measuring hopper 2. The partition 10 is tilted downward away from its fixed end to receive the raw materials that fall on the partition 10.

[0026] A dust suppression cover 5 is provided on the upper part of the unloading conveying belt 3, and a feeding gap is left between the two. The dust suppression cover 5 is open at one end close to the output end of the unloading conveying belt 3. A valve 8 is installed at the output end of the metering hopper 2 to control the discharge of raw materials. The valve 8 is also sealed and connected with a soft sleeve 6. The output end of the soft sleeve 6 is sealed and connected with the top of the dust suppression cover 5 and penetrates the top of the dust suppression cover 5 to communicate with the feeding gap, and is located at the upper part of the unloading conveying belt 3. The adaptation of the soft sleeve 6 and the dust suppression cover 5 also prevents the scattering of raw materials such as cement.

[0027] It also includes a PLC control system, which is electrically connected to the weighing sensor 401, the unloading conveyor belt 3, the induced draft fan 702 and the valve 8 of the equipment, and is used to set the raw material discharge amount and control the start and shut down of each electrical appliance;

[0028] It should also be noted that, in the initial state, valves 8 are all in the closed state, and the raw materials in the storage hopper 1 are discharged in turn for weighing under the control of valve 8, and when the weighing is close to the required raw material mass, the corresponding valve 8 is closed, and the induced draft fan 702 starts to adsorb for a certain period of time and then stops. After the scattered raw materials are stabilized, the valve 8 corresponding to the raw materials being weighed is intermittently opened and closed until the required mass is weighed. After the raw materials are weighed, the valve 8 at the output end of the metering hopper 2 is opened to discharge the materials, and the unloading conveyor belt 3 starts to transport the raw materials.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A raw material proportioning device for preparing cement concrete, comprising, from top to bottom, a storage hopper (1), a measuring hopper (2) and a discharge conveyor belt (3), wherein the output end of the storage hopper (1) and the output end of the measuring hopper (2) are both downwardly facing and closable, and the measuring hopper (2) is provided with a weighing mechanism (4) for weighing raw materials, characterized in that: The measuring hopper (2) is a fully sealed hopper-shaped structure. The output end of the storage hopper (1) is connected to a soft sleeve (6) and is connected to the upper part of the measuring hopper (2) through the soft sleeve (6) and is in sealed communication. An air induced mechanism (7) is installed on the upper part of a side wall of the measuring hopper (2). The air induced mechanism (7) comprises a dust suppression net (701) and an induced draft fan (702). The dust suppression net (701) is arranged at the input end of the induced draft fan (702), and the input end of the induced draft fan (702) is in communication with the inner cavity of the measuring hopper (2).

2. The raw material proportioning equipment for preparing cement concrete according to claim 1, characterized in that: The storage hopper (1) and the unloading conveyor belt (3) are independently arranged, and the weighing mechanism (4) comprises a weighing sensor (401) and a suspension chain (402). The suspension chain (402) is arranged in a plurality of chains, one end of which is fixedly connected to the storage hopper (1), and the other end of which is connected to the weighing sensor (401) and connected to the weighing hopper (2) to suspend the weighing hopper (2).

3. The raw material proportioning equipment for preparing cement concrete according to claim 1, characterized in that: A dust suppression cover (5) is provided on the upper part of the unloading conveying belt (3), and a feeding gap is left between the two. The dust suppression cover (5) is open at one end close to the output end of the unloading conveying belt (3).

4. The raw material proportioning equipment for preparing cement concrete according to claim 3, characterized in that: The output end of the metering hopper (2) is sealedly connected to a soft sleeve (6), and the soft sleeve (6) penetrates the upper part of the dust suppression cover (5) and is communicated with the feeding gap.

5. The raw material proportioning equipment for preparing cement concrete according to claim 1, characterized in that: The output end of the storage hopper (1) and the output end of the metering hopper (2) are both equipped with valves (8).

6. The raw material proportioning equipment for preparing cement concrete according to claim 1, characterized in that: An opening (9) is provided at an upper portion of a side wall of the metering hopper (2); the dust suppression net (701) is bolted and removably sealed at the opening (9); and the induced draft fan (702) is bolted and removably mounted on the metering hopper (2).

7. A raw material proportioning equipment for preparing cement concrete according to claim 6, characterized in that: A partition plate (10) is fixedly mounted on the inner wall of the measuring hopper (2); the partition plate (10) is located below the opening (9) and is not located below the output end of the storage hopper (1); the partition plate (10) is arranged to be tilted downward.

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