A rinse screen

Abstract

The utility model discloses a kind of washing screen frame, it is related to sandstone screening equipment technical field.The washing screen frame includes screen frame body and overflow adjusting plate;The bottom of screen frame body is equipped with screen, side wall is opened with several outer drainage holes along circumference, outer wall lower part is equipped with the flow guide groove of intercommunication groove discharge port, outer edge of flow guide groove extends outward and forms handling flange;Overflow adjusting plate is located inside screen frame body by suspension assembly, and upper is equipped with the inner adjusting hole corresponding with outer drainage hole;Suspension assembly includes suspension rod, and adjusting waist hole and locking screw hole are opened on suspension rod.The utility model not only has the water-collecting splash-proof function of outer flow guide groove and handling handle function, but also when the pass rate of bottom layer screen is low due to the instantaneous large amount of material input, excess accumulated water is quickly discharged through side wall, reduce screening machine operating load, and the fine material misdischarged is recycled, effectively solve the problem of accumulated water overweight in multi-stage screening.

Description

Technical Field

[0001] This utility model relates to the technical field of sand and gravel screening equipment, specifically to a washing screen frame, which is particularly suitable for the uppermost screening structure of multi-layer and multi-stage screening equipment. Background Technology

[0002] In modern sand and gravel washing operations, multi-layer, multi-stage screening processes are typically employed to obtain finished aggregates of different particle sizes. In this process, the uppermost screen frame often bears the greatest feeding pressure. In actual production, situations frequently arise where large quantities of material are fed into the system within a short period.

[0003] At this point, because the aperture and effective passing area of ​​the uppermost screen are fixed, a large amount of solid-liquid mixture cannot completely pass through the screen in a short time, easily causing material to accumulate and clog the screen surface. This leads to a rapid accumulation of a large amount of water inside the screen frame, causing a sharp increase in the overall weight of the screen frame. This additional water weight not only increases the load on the vibrating motor or drive mechanism, but in severe cases, it can even lead to a decrease in the amplitude of the screening machine, unstable operation, or equipment damage.

[0004] Existing screen frames mostly have closed sidewalls, making it impossible to drain sudden water accumulations in a timely manner. Although some solutions attempt to open the sidewalls, the lack of effective collection and drainage structures causes the discharged water to carry fine particles that splash everywhere, resulting in material waste and environmental pollution. Therefore, this application provides a rinsing screen frame to meet the requirements. Utility Model Content

[0005] The purpose of this application is to provide a flushing screen frame, which aims to solve the problems of low screen throughput, excessive water accumulation and weight of the screen frame, and difficulty in collecting and recycling side wall drainage due to large instantaneous feeding volume in multi-stage screening processes.

[0006] To achieve the above objectives, this application provides the following technical solution: a rinsing screen frame, comprising a screen frame body and a screen mesh disposed at the bottom of the screen frame body; the side wall of the screen frame body is provided with a plurality of external drainage holes along the circumferential direction, and a guide channel is provided at the lower part of the outer wall of the screen frame body to receive the liquid flowing out of the external drainage holes, the guide channel being connected to a channel outlet; an overflow regulating plate is provided inside the screen frame body, the overflow regulating plate having internal regulating holes corresponding to the positions of the external drainage holes; the overflow regulating plate is suspended on the side wall of the screen frame body by a plurality of suspension components, and the bottom of the overflow regulating plate is suspended above the screen mesh. With this arrangement, the side wall drainage channel can be opened when necessary to drain excess water, reducing the weight of the screen frame, while the suspension structure avoids direct contact and wear between the regulating plate and the screen mesh.

[0007] Preferably, the suspension assembly includes a suspension rod that is hung on the top of the side wall of the screen frame body; the lower end of the suspension rod has an adjustment hole extending vertically. This structure utilizes the travel space of the adjustment hole to achieve fine-tuning of the overflow adjustment plate in the vertical direction and alignment with the hole.

[0008] Preferably, the suspension assembly further includes a positioning long screw; when the screen frame is in the drainage state, the positioning long screw passes sequentially through the adjusting waist hole, the outer drainage hole, and the inner adjusting hole and is fixed with a locking nut. This connection method not only achieves the connection and guidance of the inner and outer holes, but also uses the bolt rod to support the overflow adjusting plate, ensuring that it remains suspended during operation.

[0009] Preferably, the suspension rod also has a locking screw hole with a diameter larger than the width of the adjusting waist hole; the suspension assembly also includes a limiting short bolt; when the screen frame is in the closed state, the limiting short bolt is screwed into the locking screw hole to fix the position of the suspension rod. This mechanical locking ensures that the side wall is completely sealed when drainage is not required, preventing material leakage during fine screening.

[0010] Preferably, the guide channel is L-shaped and surrounds the outer wall of the screen frame body, with the outwardly extending outer wall of the guide channel forming a handling part for hand gripping. This outwardly extending structure not only effectively collects splashed mud and water but also forms a natural ring-shaped handle, making manual handling safer and less strenuous.

[0011] Preferably, the bottom side wall of the screen frame body is also provided with a discharge port, and the overflow regulating plate is provided with an avoidance notch corresponding to the position of the discharge port. This design avoids the regulating plate structure from obstructing the discharge of coarse material, ensuring the smoothness of the screening process.

[0012] In summary, the technical effects and advantages of this utility model are as follows: In this invention, excess water is quickly discharged through the external drainage holes on the side wall, effectively avoiding a sharp increase in the weight of the screen frame caused by instantaneous water accumulation, thereby reducing the overall gravity load of the screening machine and ensuring stable operation of the equipment under rated conditions. The design of the external guide channel not only realizes the centralized discharge of wastewater, but also intercepts and collects fine particulate materials that are accidentally discharged with the water flow, thus preventing material loss.

[0013] In this invention, the outward extension of the guide groove also functions as a ring handle, allowing workers to easily lift the screen frame by gripping its lower edge. This solves the problem of hand injury or inconvenience caused by the need to lift the bottom screen when transporting traditional screen frames. Attached Figure Description

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

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a schematic diagram of the suspension assembly of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the guide channel of this utility model.

[0016] In the diagram: 10. Screen frame body; 11. Discharge port; 12. External drainage hole; 13. Guide channel; 14. Channel outlet; 15. Screen; 20. Overflow regulating plate; 21. Internal regulating hole; 30. Suspension assembly; 31. Suspension rod; 32. Positioning long screw; 33. Locking nut; 34. Adjusting waist hole; 35. Locking screw hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0018] refer to Figure 1-4 The diagram shows a flushing screen frame, comprising a screen frame body 10, a screen 15, an overflow regulating plate 20, a suspension assembly 30, and a guide channel 13. The screen frame body 10 serves as the main support, with the screen 15 fixed to its bottom for material grading. A discharge port 11, typically rectangular or arc-shaped, is located at the bottom of the side wall of the screen frame body 10 to smoothly discharge large particles that have not passed through the screen 15. The overflow regulating plate 20 is mounted on the inner side wall of the screen frame body 10 via the suspension assembly 30, and the guide channel 13 is located below the outer side wall of the screen frame body 10.

[0019] As one implementation method in this embodiment, in order to solve the problem of excessive instantaneous feeding and insufficient drainage of the bottom screen, resulting in water accumulation and excessive weight of the screen frame, which would damage the vibration equipment, a side wall drainage and flow diversion and recovery structure is set up.

[0020] Specifically, several elongated external drainage holes 12 are formed along the circumference of the side wall of the screen frame body 10. Meanwhile, to prevent muddy water discharged from the external drainage holes 12 from splashing and polluting the environment and causing waste of fine particulate material, a ring-shaped guide channel 13 is provided on the outer wall of the screen frame body 10 below the external drainage holes 12. The guide channel 13 is fixed by welding, and its bottom has a drain outlet 14. When the water level inside the screen frame rises sharply, excess muddy water overflows from the external drainage holes 12 on the side wall, falls directly into the guide channel 13, and is collected and discharged for recycling. This not only achieves rapid weight reduction but also material recovery.

[0021] As one implementation method in this embodiment, in order to solve the problem that the existing screen frame requires the bottom screen to be held by hand during handling, which can easily cut the hands or cause inconvenience in bearing force, the structure of the guide channel 13 has been optimized.

[0022] like Figure 4 As shown, the cross-section of the guide channel 13 is L-shaped, with its outer wall extending outward and bending upward, thus forming a natural conveying section. When handling or replacing the screen frame, the operator can directly grip the bottom outer edge of the guide channel 13 or hold its outer wall, enabling them to lift the entire device safely, stably, and effortlessly, conforming to ergonomic operation.

[0023] As one implementation method in this embodiment, in order to solve the problem that the existing side wall adjustment baffle is prone to wear on the bottom precision screen 15, a suspended adjustment structure is provided.

[0024] As shown in the figure, the overflow regulating plate 20 has an internal adjusting hole 21, which is suspended on the inner side wall of the screen frame body 10 by the suspension assembly 30. The suspension assembly 30 includes a hook-shaped suspension rod 31, and the lower end of the suspension rod 31 has a vertical adjusting hole 34. With this suspension method, the bottom of the overflow regulating plate 20 is always suspended above the screen 15, maintaining a safe gap of about 5-10mm. No matter how it is rotated and adjusted, it will not come into frictional contact with the screen 15, effectively extending the service life of the screen 15.

[0025] The working principle of this utility model is as follows: When the initial feed amount is large, or the mud content in the material is extremely high, causing temporary clogging or poor drainage of the bottom screen 15, the water level in the screen frame will rise rapidly. Therefore, during installation, the inner adjustment hole 21 on the plate is aligned with the outer drainage hole 12 on the screen frame body 10. The positioning long screw 32 is selected and passed through the adjustment waist hole 34, the outer drainage hole 12 and the inner adjustment hole 21 in sequence, and the locking nut 33 is tightened on the inside. The positioning long screw 32 plays a supporting role and maintains the suspended position of the overflow adjustment plate 20. In this mode, once water accumulates in the screen frame, the excess water is immediately discharged into the external guide groove 13 through the connected inner and outer holes, achieving rapid weight reduction and protecting the vibrator.

[0026] When the feed rate is stable, or when the process requires a high water level to fully soak and clean the material, the side wall drainage needs to be closed. During assembly, remove the positioning long screw 32, rotate the overflow regulating plate 20 to misalign the inner regulating hole 21 with the outer drainage hole 12. At this time, the solid part of the overflow regulating plate 20 completely blocks the outer drainage hole 12. Select the limiting short bolt and screw it into the locking screw hole 35 on the suspension rod 31 so that its end is pressed against the outer wall of the screen frame, thereby locking the suspension rod 31 to prevent the overflow regulating plate 20 from shifting during vibration and to ensure that the side wall does not leak material.

[0027] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0028] Components not described in detail in this article are existing technologies.

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

Claims

1. A rinsing screen frame, characterized in that: Includes a sieve frame body (10) and a sieve mesh (15) disposed at the bottom of the sieve frame body (10); The side wall of the sieve frame body (10) is provided with a plurality of external drainage holes (12) along the circumferential direction. A guide groove (13) is provided on the lower part of the outer wall of the sieve frame body (10) to receive the liquid flowing out of the external drainage holes (12). A groove outlet (14) is connected to the guide groove (13). An overflow regulating plate (20) is provided inside the screen frame body (10), and an inner regulating hole (21) corresponding to the position of the outer drain hole (12) is provided on the overflow regulating plate (20). The overflow regulating plate (20) is suspended on the side wall of the screen frame body (10) by several sets of suspension components (30), and the bottom of the overflow regulating plate (20) is suspended above the screen (15).

2. A rinsing screen frame according to claim 1, characterized in that: The suspension assembly (30) includes a suspension rod (31) that is hung on the top of the side wall of the screen frame body (10); the lower end of the suspension rod (31) is provided with an adjustment waist hole (34) extending in the vertical direction.

3. A rinsing screen frame according to claim 2, characterized in that: The suspension assembly (30) also includes a positioning long screw (32); when the screen frame is in the drainage state, the positioning long screw (32) passes through the adjustment waist hole (34), the outer drainage hole (12) and the inner adjustment hole (21) in sequence and is fixed with the locking nut (33) so that the outer drainage hole (12) and the inner adjustment hole (21) remain in communication.

4. A rinsing screen frame according to claim 2, characterized in that: The suspension rod (31) is also provided with a locking screw hole (35) with a diameter larger than the width of the adjustment waist hole (34); the suspension assembly (30) also includes a limiting short bolt; when the screen frame is in a closed state, the limiting short bolt is screwed into the locking screw hole (35) to fix the position of the suspension rod (31).

5. A rinsing screen frame according to claim 1, characterized in that: The guide groove (13) is arranged in an L-shaped structure around the outer wall of the screen frame body (10), and the outer side wall of the guide groove (13) extends outward to form a transport part for hand gripping.

6. A rinsing screen frame according to claim 1, characterized in that: The bottom of the side wall of the screen frame body (10) is also provided with a discharge port (11), and the overflow regulating plate (20) is provided with an avoidance notch corresponding to the position of the discharge port (11).

Images