Lateral feeding three-way valve distributing mechanism and stone screening conveying line
By setting inclined feeding plates and feeding plates in the three-way valve, the materials are controlled to guide different outlets, and the problems of blocking, uneven feeding and offsetting of the blanking position in the existing feeding methods are solved, and uniform feeding and efficient screening are achieved.
Patent Information
- Application Number
- CN202422068331.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The existing sand and gravel aggregate distribution methods have problems such as blocking, uneven distribution and offsetting of blanking positions, which affects screening efficiency and system production capacity.
A lateral feeding three-way valve feeding mechanism is designed. By providing an inclined first feeding plate and feeding plate in the three-way valve, the materials are controlled to guide different outlets to avoid stacking, and further guide the first outlet through the second feeding plate to ensure smooth material supply.
A uniform material distribution is achieved, material accumulation and blockage are avoided, and the accurate feeding of each vibrating screen is ensured, and the screening efficiency and system production capacity are improved.
Smart Images
Figure CN223015962U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand and gravel aggregate screening, and particularly relates to a side feeding three-way valve material distribution mechanism and a stone screening and conveying line. Background Art
[0002] In the sand and gravel aggregate industry, when the main belt of the mixture is sent to two or more screening machines, a three-way valve is often used to achieve the purpose of material distribution. When restricted by site and process conditions, the conveying direction of the belt conveyor is parallel to the axis of the vibration screen arrangement, and when feeding from one side of the three-way valve, the existing material distribution method is a natural material distribution method in which the materials slide along the accumulation angle after piling up to a certain height. Generally, a relatively large space is required to pile up to a sufficient height to have the material distribution function. This method of relying only on the natural sliding of the stones without power is likely to cause blockage when encountering large stones. At the same time, the material distribution is affected by indicators such as the thickness of the material layer conveyed by the belt conveyor, the moisture content and mud content of the stones, and the center point of the falling position will shift, resulting in more or less stones distributed to each vibrating screen, affecting the screening efficiency of the vibrating screen and the production capacity of the system. Content of the Utility Model
[0003] Technical Objective: Aiming at the deficiencies of the above material distribution method, the utility model discloses a side feeding three-way valve material distribution mechanism and a stone screening and conveying line that can achieve uniform material distribution and avoid blockage caused by material accumulation.
[0004] Technical Solution: To achieve the above technical objective, the utility model adopts the following technical solution:
[0005] A side feeding three-way valve material distribution mechanism is arranged at the inlet of the three-way valve, and the feeding conveying direction is parallel to the direction connecting the two outlets of the three-way valve. The two outlets of the three-way valve are denoted as the first outlet and the second outlet, and the first outlet is located on the side far from the incoming material direction. The material distribution mechanism includes a first material distribution plate inclined in the three-way valve for guiding the falling material into the second outlet, and a receiving plate arranged above the first material distribution plate to block part of the material falling on the first material distribution plate. The receiving plate is inclined towards the side where the first outlet is located to guide the received material to the first outlet.
[0006] Preferably, a second material distribution plate is arranged on the back of the first material distribution plate of the utility model. The second material distribution plate has the same inclination direction as the receiving plate and is connected to the lower end of the receiving plate at the upper end to guide the material on the receiving plate towards the direction where the first outlet is located.
[0007] Preferably, the plate surface of the receiving plate of the utility model extends from the longitudinal axis direction of the material layer to one side of the material layer. The widths of the first material distribution plate and the second material distribution plate cover the inlet width of the three-way valve to divert all the material on the plate surface to the corresponding outlet.
[0008] Preferably, the upper end of the first material distribution plate of the present utility model is biased towards the outside of the material falling point, so that the material falling point is located in the upper plate surface area of the first material distribution plate.
[0009] Preferably, the first material distribution plate and the second material distribution plate of the present utility model are made of 16Mn steel plates with a thickness of 20 mm.
[0010] The present utility model also discloses a stone screening and conveying line, which uses the above-mentioned side feeding three-way valve material distribution mechanism, including a belt conveyor, a three-way valve, and a vibrating screen arranged at the outlet end of the three-way valve. The material distribution mechanism is arranged in the three-way valve to distribute the stones conveyed by the belt conveyor and send them into the vibrating screen through the outlet end of the three-way valve for screening.
[0011] Beneficial effects: The side feeding three-way valve material distribution mechanism and the stone screening and conveying line of the present utility model have the following beneficial effects:
[0012] 1. By setting the material receiving plate, the present utility model divides the material layer, and controls the amount of material introduced into the first outlet and the second outlet by controlling the width of the material receiving plate, so as to realize accurate feeding to each vibrating screen.
[0013] 2. By setting the second material distribution plate to guide the material on the material receiving plate, the present utility model can avoid the accumulation of material at the first outlet and ensure smooth feeding.
[0014] 3. The upper end of the first material distribution plate of the present utility model is located outside the parabolic falling point of the material curtain, so that most of the material outside the area where the material receiving plate is located can be conveyed to the second outlet through the first material distribution plate, thereby realizing the control of the conveying direction of the material by using the structure of the material distribution plate. Brief Description of the Drawings
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.
[0016] Figure 1 It is a longitudinal sectional view of the material distribution mechanism of the present utility model;
[0017] Figure 2 It is a schematic diagram of the material flow direction of the material distribution mechanism of the present utility model;
[0018] Figure 3 It is a schematic diagram of the structure of the stone screening and conveying line of the present utility model;
[0019] 1 - Three-way valve, 2 - First outlet, 3 - Second outlet, 4 - First material distribution plate, 5 - Material receiving plate, 6 - Second material distribution plate, 7 - Belt conveyor, 8 - Vibrating screen. Detailed Embodiments
[0020] Reference will now be made in detail to the embodiments of the present disclosure, one or more examples of which are set forth below. Each embodiment and example is provided by way of explanation of the apparatus, composition, and materials of the present disclosure, and not by way of limitation. On the contrary, the following description provides a convenient illustration for implementing the exemplary embodiments of the present disclosure. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure. For example, features shown or described as part of one embodiment can be combined with another embodiment to produce yet another embodiment. It is intended that the present disclosure cover such modifications and variations that fall within the scope of the appended claims and their equivalents. Other objects, features, and aspects of the present disclosure are disclosed or will be apparent from the following detailed description. It is to be understood by those of ordinary skill in the art that this discussion is only a description of exemplary embodiments and is not intended to limit the broader aspects of the present disclosure.
[0021] As Figure 1 and Figure 2 shown, the present utility model discloses a material distribution mechanism for a side-feed three-way valve, which is arranged at the inlet of the three-way valve 1. The feeding direction is parallel to the direction of the line connecting the two outlets of the three-way valve. The two outlets of the three-way valve 1 are denoted as the first outlet 2 and the second outlet 3. The first outlet 2 is located on the side away from the incoming material direction. The material distribution mechanism includes a first material distribution plate 4 inclined in the three-way valve 1 for guiding the falling material into the second outlet 3 and a receiving plate 5 arranged above the first material distribution plate 4 to block part of the material falling on the first material distribution plate 4. The receiving plate 5 is inclined towards the side where the first outlet 2 is located to guide the received material to the first outlet 2.
[0022] The present utility model divides the material layer through the receiving plate 5. The material in the width area covered by the receiving plate 5 is directly guided by the receiving plate 5 to the first outlet 2, and the material in other areas falls onto the first material distribution plate 4 and is guided by the first material distribution plate 4 to the second outlet 3. Since the material layer itself has a thickness, some material will also fall from the end of the first material distribution plate 4 to the back of the first material distribution plate 4 under the influence of the conveying, which is likely to cause material accumulation. Therefore, the present utility model provides a second material distribution plate 6 on the back of the first material distribution plate 4. The second material distribution plate 6 has the same inclination direction as the receiving plate 5, and its upper end is connected to the lower end of the receiving plate 5 to guide the material on the receiving plate 5 in the direction of the first outlet 2. The upper end of the first material distribution plate 4 is biased towards the outside of the material falling point, so that the material falling point is in the upper plate area of the first material distribution plate 4 to reduce the possibility of the material falling onto the second material distribution plate 6.
[0023] At the same time, the material feeding needs to ensure that the material discharging at the two outlets is basically the same, so as to improve the production capacity of the equipment and reduce the ineffective power consumption. The plate surface of the receiving plate 5 of the present utility model preferably extends from the longitudinal axis direction of the material layer to one side of the material layer. By controlling the splitting width of the receiving plate 5 for the material layer, the splitting amount of the two outlets is adjusted. The widths of the first splitting plate 4 and the second splitting plate 6 cover the inlet width of the three-way valve 1, and all the materials on the plate surface are diverted to the corresponding outlets; the first splitting plate 4 and the second splitting plate 6 are made of 16Mn steel plates with a thickness of 20 mm to adapt to the scenario of stone conveying and improve the service life.
[0024] As Figure 2 and Figure 3 shown, the present utility model also discloses a stone screening and conveying line, which uses the above-mentioned side feeding three-way valve splitting mechanism, including a belt conveyor 7, a three-way valve 1, and a vibrating screen 8 arranged at the outlet end of the three-way valve 1. The splitting mechanism is arranged in the three-way valve 1 to split the stones conveyed by the belt conveyor 7 and send them into the vibrating screen 8 through the outlet end of the three-way valve 1 for screening. Through the splitting mechanism of the present utility model, all the stones falling on the receiving plate 5 are sent to the first outlet 2, and the remaining stones fall onto the first splitting plate 4 and are sent to the second outlet 3. Only a small part will flow from the second splitting plate to the first outlet 2 because the material curtain landing point is too close to the upper end of the first splitting plate 4; the material amounts received by the two vibrating screens are not very different, thereby improving the overall screening efficiency, and the two vibrating screens can achieve synchronous maintenance frequencies, which brings convenience to production and maintenance.
Claims
1. A side-feeding three-way valve material distribution mechanism, arranged at the inlet of the three-way valve (1), wherein the feeding direction is parallel to the direction of the connection line between the two outlets of the three-way valve, the two outlets of the three-way valve (1) are denoted as a first outlet (2) and a second outlet (3), the first outlet (2) is located on the side away from the incoming material direction, and is characterized in that: The material distribution mechanism comprises a first material distribution plate (4) arranged obliquely in the three-way valve (1) for directing the falling material to the second outlet (3), and a material receiving plate (5) arranged above the first material distribution plate (4) for shielding part of the material falling onto the first material distribution plate (4), wherein the material receiving plate (5) is inclined toward the side where the first outlet (2) is located, so as to direct the received material to the first outlet (2).
2. A side-feeding three-way valve distributing mechanism according to claim 1, characterized in that: A second material dividing plate (6) is arranged on the back of the first material dividing plate (4), the second material dividing plate (6) is inclined in the same direction as the material receiving plate (5), the upper end of the second material dividing plate (6) is connected to the lower end of the material receiving plate (5), and the material on the material receiving plate (5) is guided in the direction of the first outlet (2).
3. A side-feeding three-way valve distributing mechanism according to claim 2, characterized in that: The plate surface of the receiving plate (5) extends from the longitudinal axis direction of the material layer to one side of the material layer, and the width of the first material dividing plate (4) and the second material dividing plate (6) covers the inlet width of the three-way valve (1), so that all the materials on the plate surface are directed to the corresponding outlet.
4. A side-feeding three-way valve distributing mechanism according to claim 1, characterized in that: The upper end of the first material distribution plate (4) is biased toward the outside of the material landing point, so that the material landing point is located in the upper plate surface area of the first material distribution plate (4).
5. A side-feeding three-way valve distributing mechanism according to claim 1, characterized in that: The first dividing plate (4) and the second dividing plate (6) are made of 16Mn steel plates with a thickness of 20 mm.
6. A stone screening conveyor line, using the side feeding three-way valve material distribution mechanism according to any one of claims 1 to 5, characterized in that: The invention comprises a belt conveyor (7), a three-way valve (1), and a vibrating screen (8) arranged at the outlet end of the three-way valve (1); a material dividing mechanism is arranged in the three-way valve (1), and the stone material conveyed by the belt conveyor (7) is divided and sent from the outlet end of the three-way valve (1) into the vibrating screen (8) for screening.