Grille device for impurity removal of feed port of coal bunker
By designing the grating device of the limiting mechanism and shock-absorbing mechanism at the feed port of the coal bin, the problems of the existing grating device being easily damaged and unable to adjust the mesh size are solved, and the screening of raw coal of different particle sizes and the improvement of equipment operation efficiency are achieved.
Patent Information
- Application Number
- CN202420579787.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-25
AI Technical Summary
The existing grille devices are prone to damage when handling large pieces of materials and cannot adjust the size of the mesh, resulting in reduced practicality and safety hazards during maintenance.
A grille device for coal bin feed port is designed, and the mesh hole size is adjusted using a limiting mechanism and a shock absorbing mechanism to reduce impact, monitoring and maintenance are achieved through the operation holes, and operating risks are reduced.
By adjusting the mesh size, the screening of raw coal of different particle sizes can be extended, the service life of the grille device can be improved, the operation efficiency of the equipment can be reduced, and the operation risks can be reduced.
Smart Images
Figure CN222568409U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of grilles, and in particular relates to a grille device used for removing impurities at a coal bunker feed port. Background Art
[0002] In the crushed coal pressurized gasification process using coal as raw material, the raw coal enters the coal chute through a belt through the feed port grille. Since the raw materials are mixed with large pieces of materials and frozen blocks produced in winter, during the feeding process, large pieces of materials or frozen blocks will cause the coal chute to be blocked, eventually causing the equipment to stop operating, seriously affecting the long-term stable operation of production. Therefore, a grille is usually installed at the feed port to filter and intercept large pieces of materials.
[0003] However, when encountering large pieces of material, the existing grille can only rigidly block its passage, causing the grille to bear the impact of the raw materials for a long time, which is easy to cause damage to the grille, and eventually cause the equipment to jam and stop operating, affecting production efficiency; and the existing grille cannot adjust the size of the mesh, resulting in reduced practicality; furthermore, during equipment maintenance and cleaning of large foreign objects on the grille, maintenance personnel need to stop the belt and clean the debris on the grille on the belt side, which poses certain safety hazards. Utility Model Content
[0004] In view of this, the utility model provides a grille device for removing impurities at the feed port of a coal bunker. On the basis of utilizing a limiting mechanism to determine the mesh size of the grille body, a shock absorbing mechanism is used to reduce the impact of the raw materials on the grille body, thereby improving the practicality of the grille device. At the same time, the utility model also monitors, inspects and removes impurities on the grille device through operating holes, thereby ensuring stable operation of the equipment and reducing operating risks for personnel.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A grille device for removing impurities from a coal bunker feed port, the grille device is arranged in a trumpet-shaped drainage chamber located above the coal bunker feed port, the trumpet-shaped drainage chamber is formed by a first drainage plate, a second drainage plate, a third drainage plate and a fourth drainage plate, wherein the first drainage plate is arranged opposite to the third drainage plate, the second drainage plate is arranged opposite to the fourth drainage plate, a conveying belt is arranged on one side of the first drainage plate, and a coal plow is arranged above the conveying belt, the grille device comprises:
[0007] The grille body comprises a plurality of vertical beams with rectangular cross sections and a plurality of horizontal beams with circular cross sections arranged in a crisscross pattern, wherein the horizontal beams are evenly spaced along the length direction of the vertical beams, and the plurality of horizontal beams simultaneously pass through the plurality of vertical beams to form a mesh grille body;
[0008] Among them, the plurality of vertical beams include fixed beams and movable beams, and both ends of each horizontal beam are provided with a first threaded connection part, and the first threaded connection part is provided with an external thread. In addition, the two fixed beams that are simultaneously matched with the two ends of the plurality of horizontal beams are provided with a plurality of first threaded holes, and the first threaded holes are provided with internal threads, and the first threaded holes are threadedly matched with the first threaded connection parts; in the grid body, the plurality of vertical beams between the two fixed beams are movable beams, and each movable beam is provided with a through hole, and each movable beam is movably sleeved on the outer surface of the plurality of horizontal beams through the through hole;
[0009] The limiting mechanism comprises a first limiting hole and a limiting screw, wherein the first limiting hole is provided on the upper end surface of the movable beam, and the first limiting hole is communicated with the through hole, and the limiting screw is threadedly connected with the first limiting hole;
[0010] The shock absorbing mechanism includes a support block, which is arranged below the two ends of each fixed beam, and at the same time the support block is arranged on the first guide plate and the third guide plate, and a limiting rod is arranged above the support block. In addition, the shock absorbing mechanism also includes a second limiting hole arranged at the two ends of each fixed beam, and the fixed beam is slidably connected to the outer surface of the limiting rod through the second limiting hole. On this basis, a spring is also arranged on the outer surface of the limiting rod between the fixed beam and the support block.
[0011] Preferably, an operating hole is provided on the third guide plate, and the operating hole is also located above the grille body. An operating door is provided on the operating hole, one end of the operating door is rotatably connected to the third guide plate through a hinge, and the other end of the operating door is connected to the third guide plate through a locking mechanism.
[0012] More preferably, the locking mechanism includes a locking rod, one end of which is rotatably connected to the operating door via a rotating shaft. In addition, the locking mechanism also includes a locking ring arranged on the third guide plate, and an opening is provided at the upper end of the locking ring. The locking rod is rotated through the opening to the inside of the locking ring through the rotation of the rotating shaft.
[0013] Furthermore, in the grille body, the length of the first threaded connection part is greater than the length of the first threaded hole. When the first threaded connection part is cooperatively connected with the first threaded hole, the end of the first threaded connection part extends out of the first threaded hole, and the protruding part of the first threaded connection part is also threadedly connected with the first locking nut.
[0014] Furthermore, in the limiting mechanism, the length of the limiting screw is greater than the length of the first limiting hole, and the limiting function of the limiting mechanism is achieved by the abutment between the end of the limiting screw and the outer surface of the beam.
[0015] Preferably, a second threaded connection portion is provided at the end of the limiting rod, and when the spring is in a free state, the second threaded connection portion is completely located above the fixed beam, and on this basis, a second locking nut is threadedly connected to the second threaded connection portion.
[0016] The beneficial effects of the utility model are:
[0017] The utility model comprises a plurality of vertical beams and horizontal beams arranged in a crisscross pattern to form a mesh grille body, and the mesh size of the grille body is adjusted by movable sleeve connection of through holes on the movable beams and the horizontal beams, so that the grille device can screen raw coal of different particle sizes, and the grille body is fixed with the aid of a limiting mechanism, which reflects the practicality of the grille device.
[0018] The utility model reduces the impact of the raw coal flow on the grille body through the shock absorbing mechanism, which on the one hand increases the service life of the grille body, and on the other hand converts the impact generated by the coal flow into vibration of the shock absorbing mechanism, which can also disperse large pieces of material so that they flow through the grille device, thereby improving the operating efficiency of the equipment.
[0019] The utility model also has an operation hole on the third drainage plate of the trumpet-shaped drainage chamber, through which the grille device can be monitored, repaired and impurities removed, so that the staff does not need to shut down the equipment to carry out maintenance and impurities removal on the belt side, which reduces the operation risk of the staff and improves the operation efficiency of the equipment; and when the equipment does not need to be monitored, repaired and impurities removed, the operation hole is closed through the operation door and the locking mechanism on the operation hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 It is a schematic diagram of the overall installation structure of the utility model;
[0022] Figure 2 It is a partial exploded schematic diagram of the structure of the grille body in the utility model;
[0023] Figure 3 It is a schematic diagram of the installation structure of the limit mechanism and the shock absorbing mechanism in the utility model;
[0024] Figure 4 It is a schematic diagram of the installation structure of the operating door and the locking mechanism in the utility model. DETAILED DESCRIPTION
[0025] 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.
[0026] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0027] The solution provided by the utility model will be described in detail below with reference to the accompanying drawings.
[0028] This technical solution provides a grille device for removing impurities from the coal bunker feed port, such as Figure 1-4 As shown, the grille device is arranged in a trumpet-shaped drainage chamber located above the coal bunker feed port, and the trumpet-shaped drainage chamber is formed by a first drainage plate 1, a second drainage plate 2, a third drainage plate 3 and a fourth drainage plate 4, wherein the first drainage plate 1 is arranged opposite to the third drainage plate 3, and the second drainage plate 2 is arranged opposite to the fourth drainage plate 4. A conveying belt 101 is arranged on one side of the first drainage plate 1 for transporting raw coal to the coal bunker feed port, and a coal plow 102 is arranged above the conveying belt 101 for sending raw coal into the trumpet-shaped drainage chamber. Figure 1 The arrow direction is the running direction of the conveyor belt 101 .
[0029] In the present technical solution, the grille device comprises: a grille body 5 , a limiting mechanism 6 and a shock absorbing mechanism 7 .
[0030] like Figure 1As shown, the grille body 5 includes a plurality of vertical beams with rectangular cross sections and a plurality of horizontal beams 501 with circular cross sections that are crisscrossed and arranged. The horizontal beams 501 are evenly spaced along the length direction of the vertical beams, and the plurality of horizontal beams 501 pass through the plurality of vertical beams at the same time to form a mesh grille body 5.
[0031] In this structure, the plurality of vertical beams include a fixed beam 502 and a movable beam 503. The two ends of each horizontal beam 501 are provided with a first threaded connection portion 504, and the first threaded connection portion 504 is provided with an external thread. In addition, the two fixed beams 502 that are simultaneously connected with the two ends of the plurality of horizontal beams 501 are provided with a plurality of first threaded holes, and the first threaded holes are provided with internal threads, and the first threaded holes are threadedly connected with the first threaded connection portion 504; the length of the first threaded connection portion 504 is greater than the length of the first threaded hole. When the first threaded connection portion 504 is connected with the first threaded hole, the end of the first threaded connection portion 504 extends out of the first threaded hole, and the extended portion of the first threaded connection portion 504 is also threadedly connected with the first locking nut 505. At this point, the installation and locking of the fixed frame of the grille body 5 are completed.
[0032] In addition, in the grid body 5, the plurality of vertical beams between the two fixed beams 502 are all movable beams 503, and each movable beam 503 is provided with a through hole, and each movable beam 503 is movably connected to the outer surface of the plurality of cross beams 501 through the through hole.
[0033] Based on the above embodiment, by adjusting the distance between two adjacent movable beams 503, the size of the mesh of the grid body 5 is adjusted, so that raw coal with different particle sizes can be screened and passed, which reflects the practicality of the grid device.
[0034] On this basis, if Figure 1-3 As shown, the present technical solution also utilizes a limiting mechanism 6 to fix the mesh size of the grille body 5, wherein the limiting mechanism 6 includes a first limiting hole 601 and a limiting screw 602, the first limiting hole 601 is arranged on the upper end surface of the movable beam 503, and the first limiting hole 601 is connected to the through hole, the limiting screw 602 is threadedly connected to the first limiting hole 601, and in addition, the length of the limiting screw 602 is greater than the length of the first limiting hole 601, and the limiting effect of the limiting mechanism 6 is realized by the abutment between the end of the limiting screw 602 and the outer surface of the beam 501.
[0035] In this technical solution, if Figure 1-3As shown, the shock absorbing mechanism 7 includes a support block 701, which is arranged below the two ends of each fixed beam 502, and at the same time, the support block 701 is arranged on the first guide plate 1 and the third guide plate 3, and a limiting rod 702 is arranged above the support block 701. In addition, the shock absorbing mechanism 7 also includes a second limiting hole 703 arranged at the two ends of each fixed beam 502, and the fixed beam 502 is slidably connected to the outer surface of the limiting rod 702 through the second limiting hole 703. On this basis, a spring 704 is also sleeved on the outer surface of the limiting rod 702 between the fixed beam 502 and the support block 701.
[0036] Based on the above structure, a second threaded connection portion 705 is provided at the end of the limiting rod 702, and when the spring 704 is in a free state, the second threaded connection portion 705 is completely located above the fixed beam 502. On this basis, a second locking nut 706 is threadedly connected to the second threaded connection portion 705.
[0037] In the above embodiment, the shock absorbing mechanism 7 utilizes the elastic effect of the spring 704, and on the basis of the fixed beam 502 being slidably sleeved on the outer surface of the limiting rod 702, reduces the impact of the raw coal flow on the grille body 5. On the one hand, such a configuration increases the service life of the grille body 5. On the other hand, the impact generated by the coal flow is converted into the vibration of the shock absorbing mechanism 7, which can also shake off large pieces of material so that they flow through the grille body 5, thereby improving the operating efficiency of the equipment. The threaded matching connection between the second threaded connection part 705 and the second locking nut 706 makes the vibration of the shock absorbing mechanism 7 controllable, thereby preventing the grille body 5 from bouncing off the limiting rod 702 when the spring 704 releases its elastic force.
[0038] In addition, Figure 4 As shown, the technical solution also has an operation hole on the third guide plate 3, and the operation hole is also located above the grille body 5, and an operation door 8 is provided on the operation hole, one end of the operation door 8 is rotatably connected to the third guide plate 3 through a hinge 801, and the other end of the operation door 8 is connected to the third guide plate 3 through a locking mechanism.
[0039] The locking mechanism includes a locking rod 802, one end of which is rotatably connected to the operating door 8 via a rotating shaft 803. In addition, the locking mechanism also includes a locking ring 804 arranged on the third guide plate 3, and an opening is arranged at the upper end of the locking ring 804. The locking rod 802 is rotated through the opening to the inside of the locking ring 804 by the rotation of the rotating shaft 803.
[0040] Based on the above embodiment, the grille device is monitored and maintained through the operating hole, so that the staff does not need to shut down the equipment and perform maintenance on the conveyor belt 101 side, which reduces the operating risks of the staff and improves the operating efficiency of the equipment; and when the equipment does not need to be monitored and maintained, the operating hole is closed through the operating door 8 and the locking mechanism on the operating hole.
[0041] Specifically, when the grid device provided by the utility model is used to screen and remove impurities from raw coal, the plurality of cross beams 501 are first connected to a fixed beam 502 through the cooperation of the first threaded connection part 504 and the first threaded hole, and then the plurality of movable beams 503 are simultaneously sleeved on the outer surfaces of the plurality of cross beams 501, and then the plurality of cross beams 501 are connected to another fixed beam 502, and the first locking nut 505 cooperates with the protruding part of the first threaded connection part 504 to complete the overall assembly of the mesh grid body 5;
[0042] By adjusting the distance between two adjacent movable beams 503, the size of the mesh of the grille body 5 is adjusted, and then the limiting screw 602 is threadedly connected with the first limiting hole 601, and when the end of the limiting screw 602 abuts against the outer surface of the beam 501, the limiting function of the limiting mechanism 6 is realized;
[0043] Then, the damping mechanism 7 is installed. Specifically, the spring 704 is first sleeved on the outer surface of the limiting rod 702, and then the fixed beam 502 is sleeved on the outer surface of the limiting rod 702 through the second limiting hole 703. On the basis of the second threaded connection part 705 and the second locking nut 706 being threadedly connected, the damping effect of the damping mechanism 7 and the conversion effect of the coal flow impact are realized;
[0044] When the working state of the grille device needs to be monitored, inspected, or impurities removed, the locking rod 802 is rotated through the opening to the outside of the locking ring 804 by the rotation of the rotating shaft 803 to open the operating door 8, thereby monitoring, inspecting, and removing impurities from the grille device.
[0045] 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 grille device for removing impurities at a coal bunker feed port, the grille device being arranged in a trumpet-shaped drainage chamber located above the coal bunker feed port, the trumpet-shaped drainage chamber being formed by a first drainage plate, a second drainage plate, a third drainage plate and a fourth drainage plate, wherein the first drainage plate is arranged opposite to the third drainage plate, the second drainage plate is arranged opposite to the fourth drainage plate, a conveying belt is arranged on one side of the first drainage plate, and a coal plow is arranged above the conveying belt, characterized in that: The grille assembly includes: The grille body comprises a plurality of vertical beams with rectangular cross sections and a plurality of horizontal beams with circular cross sections arranged in a crisscross pattern, wherein the horizontal beams are evenly spaced along the length direction of the vertical beams, and the plurality of horizontal beams simultaneously pass through the plurality of vertical beams to form a mesh grille body; Among them, the plurality of vertical beams include fixed beams and movable beams, and both ends of each horizontal beam are provided with a first threaded connection part, and the first threaded connection part is provided with an external thread. In addition, the two fixed beams that are simultaneously matched with the two ends of the plurality of horizontal beams are provided with a plurality of first threaded holes, and the first threaded holes are provided with internal threads, and the first threaded holes are threadedly matched with the first threaded connection parts; in the grid body, the plurality of vertical beams between the two fixed beams are movable beams, and each movable beam is provided with a through hole, and each movable beam is movably sleeved on the outer surface of the plurality of horizontal beams through the through hole; The limiting mechanism comprises a first limiting hole and a limiting screw, wherein the first limiting hole is provided on the upper end surface of the movable beam, and the first limiting hole is communicated with the through hole, and the limiting screw is threadedly connected with the first limiting hole; The shock absorbing mechanism includes a support block, which is arranged below the two ends of each fixed beam, and at the same time the support block is arranged on the first guide plate and the third guide plate, and a limiting rod is arranged above the support block. In addition, the shock absorbing mechanism also includes a second limiting hole arranged at the two ends of each fixed beam, and the fixed beam is slidably connected to the outer surface of the limiting rod through the second limiting hole. On this basis, a spring is also arranged on the outer surface of the limiting rod between the fixed beam and the support block.
2. A grille device for removing impurities at a coal bunker feed port according to claim 1, characterized in that: An operation hole is provided on the third guide plate, and the operation hole is also located above the grille body. An operation door is provided on the operation hole, one end of the operation door is rotatably connected to the third guide plate through a hinge, and the other end of the operation door is connected to the third guide plate through a locking mechanism.
3. A grille device for removing impurities at a coal bunker feed port according to claim 2, characterized in that: The locking mechanism includes a locking rod, one end of which is rotatably connected to the operating door via a rotating shaft. In addition, the locking mechanism also includes a locking ring arranged on the third guide plate, and an opening is arranged at the upper end of the locking ring. The locking rod is rotated through the opening to the inside of the locking ring through the rotation of the rotating shaft.
4. A grille device for removing impurities at a coal bunker feed port according to claim 3, characterized in that: In the grille body, the length of the first threaded connection part is greater than the length of the first threaded hole. When the first threaded connection part is matched with the first threaded hole, the end of the first threaded connection part extends out of the first threaded hole, and the protruding part of the first threaded connection part is also threadedly connected with the first locking nut.
5. A grille device for removing impurities at a coal bunker feed port according to claim 4, characterized in that: In the limiting mechanism, the length of the limiting screw is greater than the length of the first limiting hole, and the limiting function of the limiting mechanism is achieved by the abutment between the end of the limiting screw and the outer surface of the beam.
6. A grille device for removing impurities at a coal bunker feed port according to claim 5, characterized in that: A second threaded connection portion is provided at the end of the limiting rod, and when the spring is in a free state, the second threaded connection portion is completely located above the fixed beam, and on this basis, a second locking nut is threadedly connected to the second threaded connection portion.