A double-machine-position efficient storage and delivery integrated fracturing sand supply system

Abstract

The utility model relates to bulk material storage and conveying technical field, concretely is a kind of double-machine high-efficiency storage and conveying integrated fracturing sand supply system. Including a feeding hopper, a set of conveying device, a set of storage device, a set of discharge control device and a control room. Feeding hopper is used to receive and temporarily store material. Conveying device is used to lift and distribute material from the feeding hopper to the storage device;The conveying device includes horizontal sand feeder, vertical sand lifting machine and horizontal material distributor;The storage device includes at least two independent and side-by-side arranged storage units, each of which includes at least two independent hoppers stacked by one layer of bin body, two layers of bin body and three layers of bin body;Each discharge port of the horizontal material distributor is connected to a feed motorized gate valve for controlling the material into the corresponding independent hopper. Realize the rapid transfer, accurate distribution and efficient and reliable operation of the system of material.

Description

Technical Field

[0001] This utility model relates to the field of bulk material storage and transportation technology, specifically a dual-position high-efficiency integrated fracturing sand supply system. Background Technology

[0002] In modern engineering construction, especially in oil fracturing operations and the production of dry-mixed mortar for construction, there is a need for the efficient storage, preparation, and transportation of large quantities of granular or powdery materials (such as fracturing sand and quartz sand). These types of construction are characterized by frequent changes in work locations, large production volumes, and a complex variety of required material types and particle sizes. This places extremely high demands on the material storage and transportation system. An ideal system needs to be quick to assemble, easy to move, simple to load and unload, highly efficient in material supply, and highly automated to adapt to the fast pace and high standards of modern construction.

[0003] Currently, traditional sand storage and transportation systems mostly employ fixed silos combined with heavy machinery (such as loaders and grabs) or simple conveying devices. These traditional methods have several drawbacks: First, the fixed structure cannot adapt to the demands of frequent site changes; disassembly and relocation are time-consuming and labor-intensive, severely impacting construction efficiency. Second, the feeding, distributing, and discharging processes rely heavily on manual operation, resulting in low automation, high labor costs, and a high risk of material mixing, mismatch, and difficulty in material traceability. Third, when multiple independent silos coexist, there is a lack of collaborative management and intelligent allocation capabilities, making it difficult to achieve precise and continuous material supply based on downstream equipment needs. Furthermore, the design of traditional vertical screw conveyors at the discharge port is often unreasonable, easily leading to poor material discharge, low efficiency, and even equipment blockage, jamming, and damage. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a dual-position high-efficiency integrated fracturing sand supply system, which realizes rapid material transfer, precise delivery and efficient and reliable operation of the system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dual-position high-efficiency integrated fracturing sand supply system mainly includes a feeding hopper, a conveying device, a storage device, a discharge control device, and a control room.

[0007] The feeding hopper is used to receive and temporarily store materials. The conveying device is used to lift materials from the feeding hopper and distribute them to the storage device; the conveying device includes at least one horizontal sand feeder that horizontally transports materials from the discharge port of the feeding hopper, at least two vertical sand lifting machines that vertically lift materials, and at least one horizontal material distributor that horizontally distributes the lifted materials; the feed end of the horizontal sand feeder receives the discharge from the feeding hopper, and its discharge end is connected to the bottom feed port of the vertical sand lifting machine; the horizontal material distributor receives the top discharge from the vertical sand lifting machine.

[0008] The storage device includes at least two independent storage units arranged side by side. Each storage unit includes at least two independent silos that are stacked together by a first-layer silo, a second-layer silo, and a third-layer silo. Each discharge port of the horizontal feeder is connected to an electric feed gate valve to control the material entering the corresponding independent silo.

[0009] The discharge control device includes an electric discharge gate valve installed at the bottom discharge port of each of the independent silos, used to control the unloading of materials to the sand truck or mixer located below it.

[0010] The control room is equipped with a control system, which is electrically connected to the horizontal sand feeder, the vertical sand lifting machine, the horizontal material distributor, the electric gate valve for feeding, and the electric gate valve for discharging, and is used to automatically control the material conveying, storage, and unloading process.

[0011] Furthermore, the top of the feeding hopper may be equipped with a bag-breaking device and a screen, and the feeding hopper may also be equipped with a vibrator for driving the screen.

[0012] Furthermore, the number of storage units can be two, namely Unit A and Unit B; each storage unit may include three independent silos, for a total of six independent silos.

[0013] Furthermore, the first, second, and third layers of the storage unit can be detachably and securely connected via tapered positioning pins and locking devices, with sealing strips installed between each layer. The transport dimensions of a single layer of the storage unit can be controlled as follows: width less than or equal to 2.8 meters, height less than or equal to 2.8 meters, and length between 10 and 12 meters.

[0014] Furthermore, the control system can be configured to control the two storage units to perform feeding and unloading operations independently or synchronously. The material can be fracturing sand or granular and powdered material used in dry-mixed mortar.

[0015] Furthermore, the vertical sand lifting machine can be a vertical screw elevator; a throwing plate can be provided at the top discharge port of the vertical screw elevator, the throwing plate is fixed on the screw shaft and connected to the screw blades, and is used to throw the material horizontally at a 45-degree angle with the vertical direction.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Achieving a high degree of integration and modular design, significantly improving the efficiency of site transfer and deployment: The sand silo adopts a multi-layer detachable silo structure, which can be quickly assembled and disassembled through conical positioning pins and locking devices. The transport dimensions of a single-layer silo are strictly controlled within standard limits (such as width and height ≤ 2.8 meters), which greatly facilitates road transportation and perfectly adapts to construction scenarios such as oil fracturing and building mortar that require frequent changes of work sites. It solves the pain points of traditional fixed silos, such as difficulty in disassembly and relocation, and time and labor costs.

[0018] 2. A dual-station independent parallel operation capability has been established, significantly improving storage and transportation efficiency and flexibility: By setting up at least two independent storage units (such as Unit A and Unit B), each unit containing multiple independent silos, and supplemented by an intelligent control system, the system can simultaneously receive two types of materials, or simultaneously supply materials to two downstream devices (such as two sand mixing trucks), or have one unit as a backup. This "dual-station" design greatly enhances the system's parallel processing capability and operational continuity, meeting the demand for high-efficiency material supply in large-scale, fast-paced construction.

[0019] 3. Improved reliability and discharge efficiency of material conveying: The conveying device adopts a rational layout of horizontal sand feeding, vertical lifting, and horizontal distribution. In particular, the vertical screw conveyor innovatively features a throwing plate fixed to the screw shaft at its discharge port, which can smoothly throw the material at a specific angle (such as 45°), effectively solving the technical problems of blockage, poor discharge, and low efficiency that are prone to occur at the discharge port of traditional vertical screw conveyors, ensuring smooth and high-efficiency material conveying process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure and main view of the process principle of this utility model.

[0021] Figure 2 This is a side view illustrating the structure and technological principle of this utility model.

[0022] Figure 3 This is a three-dimensional structural diagram of the vertical screw conveyor of this utility model.

[0023] Figure 4 This is a schematic front sectional view of the vertical screw conveyor structure of this utility model.

[0024] Figure 5 This is a top sectional view of the structure of the vertical screw conveyor of this utility model.

[0025] The markings in the diagram are: 1. Feeding hopper; 2. Horizontal sand feeder; 3. Vertical sand lifting machine; 301. Throwing plate; 4. Horizontal material distributor; 51. Electric gate valve for feeding; 52. Electric gate valve for discharging; 6. Three-layer silo; 7. Two-layer silo; 8. One-layer silo; 9. Sand transport vehicle; 10. Control room. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In the description of this utility model, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0031] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0032] like Figure 1-5 As shown, a dual-position high-efficiency integrated fracturing sand supply system is first constructed through equipment transportation and assembly. The storage units (first-layer unit 8, second-layer unit 7, and third-layer unit 6) are prefabricated in the factory. The dimensions of a single-layer unit are designed as follows: width 2.8 meters, height 2.8 meters, and length 11 meters, to meet the regulatory restrictions for conventional road transport. After transportation to the construction site, a crane is used to hoist the first-layer unit 8 (bottom layer) onto a predetermined leveled area as a foundation. Subsequently, the second-layer unit 7 and the third-layer unit 6 are hoisted in sequence. Sealing strips are laid at the flange connections between layers, and pre-machined conical locating pins are used for initial positioning to ensure rapid and accurate alignment of each layer. Finally, a quick-locking device (such as an eccentric wheel lock) is used to securely connect each layer into a single, independent silo. This embodiment sets up two parallel storage units (Unit A and Unit B), each of which consists of three such independent silos stacked together, for a total of six independent silos (A1, A2, A3, B1, B2, B3), which can store different types or batches of materials respectively.

[0033] The feeding hopper 1 is located at one end of the entire system, and a bag-breaking device and a vibrating screen are installed on its top. The ton bag material is placed above the screen of the feeding hopper 1 by a forklift. The operator or automatic device opens the ton bag, and the material undergoes preliminary screening through the screen under the action of gravity and the vibrator. After removing impurities, it falls into the hopper for temporary storage.

[0034] The conveying device connects the feeding hopper 1 and the storage device. The horizontal sand conveyor 2 is a belt conveyor, with its feed end located below the bottom discharge port of the feeding hopper 1. The horizontal sand conveyor 2 horizontally conveys the material to its discharge end, which connects to the bottom feed ports of the two vertical sand lifting machines 3. In this embodiment, the vertical sand lifting machine 3 is a vertical screw elevator. Its core improvement lies in the fact that a throwing plate 301 is welded and fixed at the top discharge port of the screw shaft. The throwing plate 301 is smoothly connected to the uppermost screw blade. When the material is lifted to the top, the rotating throwing plate 301 gives the material an additional horizontal velocity, causing it to be smoothly "thrown" into the receiving trough of the horizontal distributor 4 at an angle of approximately 45° to the vertical direction, greatly improving the smoothness of discharge and avoiding congestion and accumulation of material at the outlet. The horizontal material distributor 4 adopts a dual-channel belt conveyor, whose running direction is perpendicular to the horizontal sand feeder 2, and can convey and distribute materials from any vertical sand lifter 3 to the left or right.

[0035] Each independent hopper has its top inlet connected to one outlet of the horizontal feeder 4 via a chute, and an electric feed gate valve 51 is installed at each connection. The control system controls the opening and closing of these valves, thereby precisely guiding the material into the designated target hopper.

[0036] Each of the independent silos has a discharge electric gate valve 52 installed at the bottom conical discharge port. The sand truck 9 or the mixer can be parked at the corresponding position below the silo, and the control system controls the corresponding discharge electric gate valve 52 to open as needed, so that the material can be unloaded into the downstream equipment under the action of gravity.

[0037] The control room 10 integrates a PLC (Programmable Logic Controller), an industrial computer, a human-machine interface (HMI), and a power distribution system. This control system is electrically connected via cables to the horizontal sand feeder 2, the vertical sand lifting machine 3, the horizontal material distributor 4, all feed electric gate valves 51 and discharge electric gate valves 52, and various sensors distributed throughout the system (such as RFID readers, level gauges, temperature sensors, torque sensors, etc.).

[0038] The working principle and process of this utility model are as follows:

[0039] A forklift carrying ton bags of materials places the bags onto the screen of hopper 1. After the bags are broken, the material falls into the hopper through screening. The control system starts the horizontal sand conveyor 2 and the designated vertical sand lifter 3, and opens the electric gate valve 51 corresponding to the target hopper. The material is horizontally conveyed, vertically lifted, and finally distributed by the horizontal distributor 4 and stored in the designated independent hopper. When feeding is needed, the designated electric gate valve 52 is directly selected to open, and the opening degree can be adjusted to control the flow rate.

[0040] The above description is only a part of the specific embodiments of this utility model. The protection scope of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and utility model concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A dual-position high-efficiency integrated fracturing sand supply system, characterized in that, A feeding hopper (1) is used to receive and temporarily store materials; A conveying device is used to lift materials from the feeding hopper (1) and distribute them to a storage device; the conveying device includes at least one horizontal sand feeder (2) that horizontally transports materials from the discharge port of the feeding hopper (1), at least two vertical sand lifting machines (3) that vertically lift materials, and at least one horizontal material distributor (4) that horizontally distributes the lifted materials; the feeding end of the horizontal sand feeder (2) receives the discharge from the feeding hopper (1), and its discharge end is connected to the bottom feeding port of the vertical sand lifting machine (3); the horizontal material distributor (4) receives the top discharge from the vertical sand lifting machine (3); The storage device includes at least two independent storage units arranged side by side, each of the storage units including at least two independent silos stacked together by a first silo (8), a second silo (7) and a third silo (6); each discharge port of the horizontal feeder (4) is connected to an electric feed gate valve (51) for controlling the material to enter the corresponding independent silo. The discharge control device includes an electric discharge gate valve (52) located at the bottom discharge port of each of the independent silos, for controlling the discharge of materials to the sand truck (9) or mixer located below it; A control room (10) is provided with a control system, which is electrically connected to the horizontal sand feeder (2), the vertical sand lifter (3), the horizontal material distributor (4), the electric gate valve for feeding (51) and the electric gate valve for discharging (52), for automatically controlling the material conveying, storage and unloading process.

2. The dual-position high-efficiency integrated fracturing sand supply system according to claim 1, characterized in that, The top of the feeding hopper (1) is equipped with a bag breaking device and a screen, and the feeding hopper (1) is also equipped with a vibrator for driving the screen.

3. The dual-position high-efficiency integrated fracturing sand supply system according to claim 1, characterized in that, There are two storage units, namely Unit A and Unit B; each storage unit includes three independent hoppers, for a total of six independent hoppers.

4. The dual-position high-efficiency integrated fracturing sand supply system according to claim 1, characterized in that, The first-layer silo (8), the second-layer silo (7), and the third-layer silo (6) are detachably fixedly connected by tapered positioning pins and locking devices, and sealing strips are provided between the layers.

5. The dual-position high-efficiency integrated fracturing sand supply system according to claim 4, characterized in that, The transport dimensions of a single-layer warehouse are: width less than or equal to 2.8 meters, height less than or equal to 2.8 meters, and length between 10 meters and 12 meters.

6. The dual-position high-efficiency integrated fracturing sand supply system according to claim 1, characterized in that, The control system is configured to control the two storage units to perform feeding and unloading operations independently or synchronously.

7. The dual-position high-efficiency integrated fracturing sand supply system according to claim 1, characterized in that, The material is granular material and powder used for fracturing sand or dry-mixed mortar.

8. The dual-position high-efficiency integrated fracturing sand supply system according to claim 1, characterized in that, The vertical sand lifting machine (3) adopts a vertical screw elevator; a throwing plate (301) is provided at the top discharge port of the vertical screw elevator. The throwing plate (301) is fixed on the screw shaft and connected to the screw blades, and is used to throw the material horizontally at an angle of 45° to the vertical direction.

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