Efficient gasification slag separation vibrating screen

Abstract

The utility model relates to screening equipment technical field especially relates to a gasification slag high -efficient sorting vibrating screen. Including frame, four groups of damping spring no.

Description

Technical Field

[0001] This utility model relates to the field of screening equipment technology, and in particular to a high-efficiency vibrating screen for separating gasified slag. Background Technology

[0002] Gasification slag is a solid waste generated during the coal chemical gasification process. Its composition is complex, containing unburned carbon, ash, and metal oxides. Due to the characteristics of the gasification process, the slag has a wide particle size distribution, high moisture content, and is highly viscous and prone to caking. To achieve resource utilization, residual carbon and ash must be separated through a separation process. The vibrating screen, as the core separation equipment, undertakes the key tasks of particle size classification and dewatering pretreatment.

[0003] Linear vibrating screens are commonly used for separating gasification slag. However, during operation, the gasification slag slurry is directly poured onto the screen surface, causing localized accumulation at the ends and resulting in uneven slurry layer thickness. This not only reduces the effective screening area of ​​the screen but also exacerbates the entrainment of fine particles, leading to a decrease in sorting efficiency. Furthermore, the direct impact of the slurry onto the screen generates a strong impact force, which can accelerate screen fatigue and breakage, while also causing slurry splashing and contaminating the equipment and work area.

[0004] Therefore, this utility model provides a high-efficiency gasification slag separation vibrating screen that can achieve uniform slurry distribution and slow flow to reduce loss. The system of dual-cavity diversion and arc-shaped flow channel weakens the influence of local slurry accumulation and thus improves screening efficiency. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a high-efficiency gasification slag separation vibrating screen.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency vibrating screen for separating gasification slag includes a frame mounted on a base surface. Multiple sets of damping springs are evenly distributed between the frame and the base surface. Four sets of damping springs are distributed at the four corners of the frame in a rectangular shape. The upper ends of the four sets of damping springs are connected to an inclined screen box. The screen box is equipped with a vibrator. A feed hopper is located above the upper end of the screen box on the frame. The feed hopper is divided into an upper chamber and a lower chamber. The top wall of the upper chamber has a feed inlet. The bottom wall of the upper chamber has multiple discharge ports along its length that communicate with the lower chamber. The lower end of the lower chamber is connected to an arc-shaped flow channel. The outlet of the flow channel faces the screen surface of the screen box and is tangential to the screen surface.

[0007] Preferably, the bottom wall of the screen box is symmetrically provided with two sets of screens, which are separated by a baffle. The feed hopper is provided with a partition and a material distribution chamber corresponding to the two sets of screens. Each of the two material distribution chambers is provided with an upper chamber and a lower chamber, and the lower chamber is connected to an arc-shaped flow channel.

[0008] Preferably, the upper chamber sidewalls of the two material distribution chambers in the feed hopper are connected to guide pipes, and the ends of the two guide pipes are connected to a feed pipe.

[0009] Preferably, the two feed tubes extend upwards at an angle.

[0010] Preferably, the frame is detachably mounted on both sides of the screen box, and the feed hopper is provided on both sides with mounting plates placed on the mounting plates, which are detachably connected to the mounting plates.

[0011] Preferably, the screen box is provided with a material collection hopper and a sludge collection hopper. The material collection hopper is located at the lower end of the screen box and faces the lower end of the screen surface. The sludge collection hopper is located at the lower end face of the screen box and the screen surface is completely located within the inlet of the sludge collection hopper.

[0012] Preferably, the screen box is provided with multiple sets of water spray pipes at intervals, and each water spray pipe is provided with multiple nozzles.

[0013] Preferably, the nozzles are not perpendicular to the screen, and each nozzle end is provided with an impact shroud with an opening on the lower side wall of the impact shroud.

[0014] Compared with the prior art, this utility model provides a high-efficiency vibrating screen for gasification slag separation, which has the following beneficial effects: 1. In this utility model, the slurry flows through the upper chamber for distribution and then through the dripping of the discharge port, which reduces the impact of the injection. In addition, the flow channel tangential to the screen surface further disperses the slurry along the screen surface, thereby reducing the impact. At the same time, it also separates the slurry to achieve the effect of balancing the slurry.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0017] Figure 2 This is a right-side view of the present invention.

[0018] Figure 3 This is a front view schematic diagram of the present invention.

[0019] Figure 4 For the present utility model Figure 3 A partial schematic diagram of section AA in the middle.

[0020] Figure 5 For the present utility model Figure 4A cross-sectional view of the feed hopper.

[0021] Figure 6 For the present utility model Figure 6 A partial schematic diagram of point B.

[0022] Figure 7 This is a three-dimensional schematic diagram of the vibrator of this utility model.

[0023] In the diagram: 1. Frame; 2. Screen box; 3. Shock-absorbing spring one; 4. Shock-absorbing spring two; 5. Vibrator; 6. Feed hopper; 7. Upper chamber; 8. Lower chamber; 9. Flow channel; 10. Support hopper; 11. Material outlet; 12. Feed inlet; 13. Guide pipe; 14. Sprinkler pipe; 15. Nozzle; 16. Impact cover; 17. Collection hopper; 18. Sludge collection hopper; 19. Vertical frame. Detailed Implementation

[0024] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0025] Example 1: In order to smooth the impact of the slurry and evenly distribute the slurry, this example provides a high-efficiency separation vibrating screen for gasification slag, including a frame 1 set on a base surface. Multiple sets of damping springs 4 are evenly distributed between the frame 1 and the base surface. Four sets of damping springs 3 are distributed at the four corners of the frame 1 in a rectangle. The upper ends of the four sets of damping springs 3 are connected to an inclined screen box 2. The screen box 2 is equipped with a vibrator 5. A feed hopper 6 is provided on the frame 1 above the upper end of the screen box 2. The feed hopper 6 is divided into an upper chamber 7 and a lower chamber 8. The top wall of the upper chamber 7 is provided with a feed inlet 12. The bottom wall of the upper chamber 7 is provided with multiple discharge ports 11 communicating with the lower chamber 8 along the length direction. The lower end of the lower chamber 8 is connected to an arc-shaped flow channel 9. The outlet of the flow channel 9 faces the screen surface of the screen box 2 and is tangential to the screen surface.

[0026] Principle details of this embodiment: A high-efficiency gasification slag separation vibrating screen includes a frame 1. The frame 1 is made of square tubes connected and fastened by bolts. The frame 1 is a right trapezoid in side view and the bottom wall is a grid-like frame structure.

[0027] The bottom of the frame 1 is evenly distributed with multiple sets of damping springs 2 4, with twelve sets of damping springs 2 4. These twelve sets of damping springs 2 4 are placed on the base surface and can be mounted on a grid plate. This completes the basic structure assembly of the vibrating screen. Support legs or casters can also be installed at the bottom of the grid plate to facilitate movement.

[0028] The frame 1 has four sets of shock-absorbing springs 3 arranged in a rectangular shape at its four corners. The four sets of shock-absorbing springs 3 are located in pairs at the upper and lower ends of the slope of the frame 1.

[0029] The four sets of shock-absorbing springs 3 are connected at their upper ends to the screen box 2, which is arranged at an angle along the inclined surface of the frame 1. The screen box 2 is a box structure with the bottom wall being the screen surface.

[0030] A truss is bolted to the screen box 2, and a vibrator 5 is bolted to the truss. The vibrator 5 is an attachment to the equipment to generate excitation force, enabling the excited object to obtain a certain form and magnitude of vibration, thereby vibrating the object to achieve tasks such as material or object conveying, screening, compaction, shaping, and soil and gravel compaction. Two sets of vibrators 5 are provided, using a parallel arrangement of dual-shaft vibrators 5. The dual-shaft vibrators 5 are YZO series vibration motors from Xinxiang Taiwei Machinery Equipment Co., Ltd.

[0031] The frame 1 is equipped with a feed hopper 6, which is located above the upper end of the screen box 2. The feed hopper 6 contains a support hopper 10, which divides the internal space of the feed hopper 6 into upper and lower chambers 7 and 8. The top wall of the upper chamber 7 has a feed inlet 12 with a flip-top cover. The bottom wall of the upper chamber 7, i.e., the bottom wall of the support hopper 10, has multiple discharge ports 11 communicating with the lower chamber 8 along its length. The lower end of the lower chamber 8 is connected to an arc-shaped flow channel 9, the outlet of which faces and is tangential to the screen surface of the screen box 2.

[0032] Based on the above technical solution: When in use, the vibrator 5 is turned on to generate excitation force. Since the screen box 2 and the frame 1 are connected by the damping spring 3, vibration is generated. The frame 1 is placed on the base surface by the damping spring 4, which increases the amplitude and improves the vibrating effect.

[0033] The slurry is injected into the feed hopper 6 through the feed inlet 12. The slurry accumulates in the upper chamber 7 and leaks into the lower chamber 8 through multiple discharge outlets 11. Multiple discharge points are provided to disperse the slurry in the lower chamber 8, preventing excessive localized accumulation. Simultaneously, the dripping transition between the upper chamber 7 and the lower chamber 8 initially reduces the impact force of the slurry. The dripping slurry falls into the flow channel 9 and flows into the screen box 2. Because the outlet of the flow channel 9 is tangent to the screen surface, the inertia of the slurry dispersing on the screen surface and the resulting impact is smaller, thus reducing damage to the screen surface and extending the service life of the screen box 2.

[0034] In summary, this solution firstly uses a shock-absorbing spring 3 between the frame 1 and the screen box 2, and a second shock-absorbing spring 4 between the frame 1 and the supporting base, to generate dual amplitudes with two sets of springs. Compared to vibration with a single spring, this structure not only divides the springs into two sets, reducing the size of each spring set, but also reduces the vibration distance between the devices, such as the maximum vibration distance between the frame 1 and the screen box 2, to prevent excessive movement of the screen box 2 from affecting its installation stability. The dual sets of springs both increase the amplitude to prevent excessively small amplitude from affecting screening, and prevent excessive floating between the two connected devices from affecting connection stability.

[0035] The slurry flows through the upper chamber 7, where it is first distributed and spread, and then through the dripping of the discharge port 11, which reduces the impact of the injection. The flow channel 9, which is tangent to the screen surface, further disperses the slurry along the screen surface, thus reducing the impact. At the same time, it also separates the slurry to achieve the effect of balancing the slurry.

[0036] In this embodiment, the flow channel 9 structure is referenced in Appendix Figure 5 As shown, the discharge port 11 faces the upper side of the bottom wall of the flow channel 9, rather than the lower side, to prevent the discharge from rushing directly.

[0037] In this embodiment, the device is a vibrating screen. Except where necessary, gaskets, such as rubber pads, are provided for the connection and contact between devices to improve the tightness of the connection and reduce the impact of the vibrator 5 on the device connection.

[0038] In this embodiment, the device is a vibrating screen. To ensure tight connection, the threaded counterweights of the devices are self-locking nuts. The threads between the self-locking nuts and bolts are self-locking to prevent loosening due to vibration.

[0039] In this embodiment, damping spring 3 and damping spring 4 can be equipped with dampers. The damping springs are steel wire compression springs, and their strength and dimensions are designed to match the size of the vibrating screen to meet the usage requirements.

[0040] In Example 2, a further embodiment of this solution, even with the diversion of the upper chamber 7 and the lower chamber 8, the amount of slurry still gradually decreases from the feed inlet 12 to both sides, especially at the two side walls of the screen box 2, where the utilization rate of the screen surface is not high.

[0041] Therefore, in this embodiment, two sets of screens are symmetrically arranged on the bottom wall of the screen box 2, serving as the screen surface. The two sets of screens are separated by baffles. The feed hopper 6 has partitions and corresponding material distribution chambers for the two sets of screens. Each of the two material distribution chambers has an upper chamber 7 and a lower chamber 8, and the lower chamber 8 is connected to an arc-shaped flow channel 9. This divides a vibrating screen into two feeding and screening channels, thereby reducing the distance between the side walls of each channel and the feed inlet 12, thus improving the utilization rate of the screen surface.

[0042] Preferably, multiple channels can be set, that is, multiple screens, flow channels 9 and supporting structures can be set.

[0043] In Example 3, a further embodiment of this solution, the side walls of the upper chambers 7 of the two material distribution chambers within the feed hopper 6 are each connected to a guide pipe 13, and the ends of the two guide pipes 13 are connected to a common feed pipe. Material can be simultaneously injected into both upper chambers 7 using a single feed pipe.

[0044] In Example 4, a further embodiment of this solution, the two feed pipes 13 extend upwards at an angle. The feed pipes 13 are angled so that the slurry can flow quickly into the upper chamber 7 by its own weight, reducing pipe residue.

[0045] In Example 5, a further embodiment of this solution, uprights 19 are detachably mounted on both sides of the screen box 2 on the frame 1 via bolts. The feed hopper 6 has mounting plates on both sides that rest on the uprights 19, and the mounting plates are detachably connected to the uprights 19 via bolts. This allows the feed hopper 6 to be mounted on the frame 1 at the end of the screen box 2.

[0046] In a further embodiment of this solution, as described in Example 6, the screen box 2 is equipped with a material collection hopper 17 and a sludge collection hopper 18. The material collection hopper 17 is located at the lower end of the screen box 2 and faces the lower end of the screen surface; the sludge collection hopper 18 is located on the lower end face of the screen box 2, with the screen surface completely located within the inlet of the sludge collection hopper 18. These are used to receive the sorted materials and impurities, respectively.

[0047] In Example 7, a further embodiment of this solution, the screen box 2 is provided with multiple sets of sprinkler pipes 14 at intervals. The inlet end of the sprinkler pipe 14 is provided with an electric butterfly valve, which is connected to a water inlet pipe (not shown in the attached figure). The water inlet pipe is connected to a water source (not shown in the attached figure) through a water pump. Each sprinkler pipe 14 is provided with multiple nozzles 15.

[0048] In processes such as dehydration, water can be injected into the sprinkler pipe 14 and then sprayed from the nozzle 15 to achieve the purpose of sprinkling water.

[0049] In Example 8, a further embodiment of this solution, if the water spray is atomized, it is easy to disperse and the slurry is not easily dispersed; if it is jet-shaped water impact, it is easy to cause the slurry to splash. Therefore, in this embodiment, the nozzle 15 is not perpendicular to the screen, and each nozzle 15 is provided with an impact cover 16 at its end, with an opening on the lower side wall of the impact cover 16. Clean water is sprayed from the nozzle 15 and impacts the impact cover 16, spreading out along the opening to form a fan-shaped water surface. After the water spreads out, it falls onto the screen surface, reducing the impact force, and the water surface is more concentrated than water mist, resulting in a better effect.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-efficiency vibrating screen for separating gasification slag, characterized in that, The machine includes a frame (1) set on the base surface. Multiple sets of damping springs (4) are evenly distributed between the frame (1) and the base surface. Four sets of damping springs (3) are distributed in a rectangular shape at the four corners of the frame (1). The upper ends of the four sets of damping springs (3) are connected to an inclined screen box (2). The screen box (2) is equipped with a vibrator (5). A feed hopper (6) is provided above the upper end of the screen box (2) on the frame (1). The feed hopper (6) is divided into an upper chamber (7) and a lower chamber (8). The top wall of the upper chamber (7) is provided with a feed inlet (12). The bottom wall of the upper chamber (7) is provided with multiple discharge ports (11) that communicate with the lower chamber (8) along the length direction. The lower end of the lower chamber (8) is connected to an arc-shaped flow channel (9). The outlet of the flow channel (9) faces the screen surface of the screen box (2) and is tangential to the screen surface.

2. The high-efficiency gasification slag separation vibrating screen according to claim 1, characterized in that, The bottom wall of the screen box (2) is symmetrically provided with two sets of screens, which are separated by baffles. The feed hopper (6) is provided with partitions and has a material distribution chamber corresponding to the two sets of screens. Both material distribution chambers are provided with an upper chamber (7) and a lower chamber (8), and the lower chamber (8) is connected to an arc-shaped flow channel (9).

3. The high-efficiency gasification slag separation vibrating screen according to claim 2, characterized in that, The upper chamber (7) of the two material distribution chambers in the feed hopper (6) is connected to a guide pipe (13), and the ends of the two guide pipes (13) are connected to a feed pipe.

4. The high-efficiency gasification slag separation vibrating screen according to claim 3, characterized in that, The two feed tubes (13) extend upwards at an angle.

5. The high-efficiency gasification slag separation vibrating screen according to claim 1, characterized in that, The frame (1) has detachable uprights (19) on both sides of the screen box (2). The feed hopper (6) has mounting plates on both sides that are placed on the uprights (19). The mounting plates are detachably connected to the uprights (19).

6. The high-efficiency gasification slag separation vibrating screen according to claim 1, characterized in that, The screen box (2) is provided with a material collection hopper (17) and a sludge collection hopper (18). The material collection hopper (17) is located at the lower end of the screen box (2) and faces the lower end of the screen surface. The sludge collection hopper (18) is located at the lower end of the screen box (2) and the screen surface is completely located in the inlet of the sludge collection hopper (18).

7. The high-efficiency gasification slag separation vibrating screen according to claim 6, characterized in that, The screen box (2) is provided with multiple sets of water spray pipes (14) at intervals, and each water spray pipe (14) is provided with multiple nozzles (15).

8. The high-efficiency gasification slag separation vibrating screen according to claim 7, characterized in that, The nozzle (15) is not perpendicular to the screen surface, and each nozzle (15) is provided with an impact cover (16) at its end, with an opening on the lower side wall of the impact cover (16).

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