Grate plate module, grate cooler and firing system

Abstract

The utility model relates to the field of grate coolers, and in particular to a grate plate module, a grate cooler and a sintering system. The grate plate module includes a submodule, which includes a grate plate box, grate bars, a movable shaft and a locking assembly; the top of the grate plate box is open; a plurality of grate bars are provided, and the plurality of grate bars are sequentially laid on the open part of the grate plate box along a straight line; the movable shaft is in the grate plate box, and has a first position and a second position in the grate plate box, so as to be in a connected state and a separable state with each grate bar respectively; the locking assembly is arranged in the grate plate box, so as to lock or unlock the movable shaft, so that the movable shaft can be switched between the first position and the second position. The grate cooler includes a grate plate module. The sintering system includes a grate cooler. The grate plate module alleviates the technical problems of low grate plate manufacturing yield, unsatisfactory cooling effect and inconvenient maintenance in the prior art, realizes the split design of the grate plate, and enables the grate bars connected in series to be removed individually.

Description

Technical Field

[0001] The utility model relates to the field of grate coolers, in particular to a grate plate module, a grate cooler and a sintering system. Background Art

[0002] Grate cooler is an important main machine in the clinker burning system of cement plant. Its main function is to cool and transport cement clinker and provide hot air for rotary kiln and decomposition furnace. With the rapid development of modern new dry process cement production technology and equipment, and the continuous improvement of cement clinker grate cooler technology, high-efficiency and reliable clinker grate cooler has become the key to ensure the production capacity of the burning system.

[0003] The grate plate is the core component of the grate cooler, and its main function is to carry and distribute air to cool the material. At present, the grate plate is mainly made of an integrated structure by casting or welding. Casting defects are prone to occur during the production process, such as meat defects, hole defects, incomplete defects, shape and weight errors, etc., which require welding to repair the defects, which seriously affects the yield rate; furthermore, the pores of the grate plate are prone to deformation and uneven heating, resulting in uneven ventilation during use and unsatisfactory clinker cooling effect; in addition, because the grate cooler is in a closed working environment with high temperature and high wear for a long time, the grate plate is difficult to repair and inconvenient to replace. During maintenance, it is often necessary to replace the entire grate plate, resulting in excessively high costs. Utility Model Content

[0004] The utility model aims to provide a grate plate module, a grate cooler and a sintering system to alleviate the technical problems of low grate plate manufacturing yield, unsatisfactory cooling effect and inconvenient maintenance in the prior art.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0006] In a first aspect, the grate plate module provided by the utility model comprises: a submodule, wherein the submodule comprises a grate plate box, grate bars, a movable shaft and a locking assembly;

[0007] The top of the grate box is open;

[0008] The grate bars are provided in a plurality of pieces, and the plurality of grate bars are sequentially laid along a straight line at the open portion of the grate plate box;

[0009] The movable shaft is located in the grate box and has a first position and a second position in the grate box, so as to be in a connected state and a detachable state with each of the grate bars respectively;

[0010] The locking assembly is disposed in the grate box to lock or unlock the movable shaft so that the movable shaft can be switched between the first position and the second position.

[0011] Furthermore, a mounting hole extending along the axial direction of the movable shaft is provided at the bottom of the grate bar, the edge of the cross section of the mounting hole is a major arc, and the opening of the major arc faces downward;

[0012] The movable shaft is columnar and passes through the mounting hole. Its side surface is composed of two symmetrically distributed arc surfaces and two symmetrically distributed rectangular surfaces, wherein the two arc surfaces are connected between the two rectangular surfaces for fitting with the side wall of the mounting hole, and the spacing between the two rectangular surfaces is equal to the chord length corresponding to the major arc.

[0013] Further, the locking assembly includes a positioning pin and a limiting angle plate;

[0014] The positioning pin is slidably connected to the grate box;

[0015] The limiting angle plate is fixed to the positioning pin, and can move toward or away from the movable axis when the positioning pin slides, so as to correspondingly fit with or separate from the rectangular surface.

[0016] Furthermore, a fixing frame is fixed on the inner bottom surface of the grate box, and the positioning pin is penetrated through the fixing frame and can slide along its own axial direction, and the sliding direction is perpendicular to the movable axis.

[0017] Furthermore, the top surface of the grate bar has a first curved surface protruding away from the grate plate box, and the bottom surface has a second curved surface protruding away from the grate plate box, and a protrusion is formed on the second curved surface;

[0018] In each of the grate bars, two adjacent grate bars are overlapped and matched, and the protrusion of one of the grate bars is in conflict with the first curved surface of the other grate bar.

[0019] Furthermore, mounting blocks are provided at both ends of the grate bar, and the two mounting blocks are respectively overlapped on two opposite side plates of the grate plate box.

[0020] Furthermore, an air inlet is provided at the bottom of the grate box.

[0021] Furthermore, the submodules are provided in plurality, and the plurality of submodules are distributed in an array;

[0022] The grate boxes of each submodule are fixedly connected to form an integrated structure.

[0023] In a second aspect, the grate cooler provided by the utility model comprises the grate plate module.

[0024] In a third aspect, the sintering system provided by the utility model includes the grate cooler.

[0025] Compared with the prior art, the grate plate module provided by the utility model has the following beneficial effects:

[0026] The grate module includes a submodule, which includes a grate box, grate bars, a movable shaft and a locking assembly; the top of the grate box is open; a plurality of grate bars are provided, and the plurality of grate bars are sequentially laid along a straight line at the open portion of the grate box; the movable shaft is in the grate box, and has a first position and a second position in the grate box, so as to be in a connected state and a separable state with each grate bar respectively; the locking assembly is arranged in the grate box, so as to lock or unlock the movable shaft, so that the movable shaft can switch between the first position and the second position.

[0027] In the grate plate module, a plurality of grate bars are laid on the open part of the grate plate box to form a grate plate; when the movable shaft is in the first position, the grate bars are connected to the movable shaft and cannot be separated from the grate plate box. After the locking assembly releases the lock on the movable shaft, the movable shaft can be changed from the first position to the second position and no longer has a restraining effect on the grate bars. At this time, the grate bars connected in series can be removed individually.

[0028] It can be seen that compared with the existing technology, the grate plate of the grate plate module adopts a split design, so that the gap between adjacent grate bars is adjustable, ensuring uniform ventilation, and a single grate bar is easy to manufacture, which can improve the yield rate; through the cooperation of the locking assembly and the movable shaft, the grate bars in series can be fixed on the grate plate box, and can be removed individually, which is convenient for the maintenance and replacement of the grate bars.

[0029] The beneficial effects of the grate cooler provided by the utility model are:

[0030] The grate cooler provided by the utility model includes a grate plate module, and thus, the technical advantages and effects achieved by the grate cooler also include the technical advantages and effects achieved by the above-mentioned grate plate module, which will not be repeated here.

[0031] The beneficial effects of the sintering system provided by the utility model are:

[0032] The firing system provided by the utility model includes a grate cooler. Therefore, the technical advantages and effects achieved by the firing system also include the technical advantages and effects achieved by the above-mentioned grate cooler, which will not be repeated here.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 A schematic diagram of the structure of a submodule provided in an embodiment of the utility model at a certain angle;

[0036] Figure 2 A schematic diagram of the structure of a submodule provided in an embodiment of the utility model at another angle;

[0037] Figure 3 A schematic diagram of the internal structure of a grate box provided in an embodiment of the utility model;

[0038] Figure 4 A schematic diagram of the connection between the grate bars and the movable shaft provided in an embodiment of the utility model;

[0039] Figure 5 A schematic diagram of the structure of the grate bars provided in the embodiment of the utility model at a certain angle;

[0040] Figure 6 A schematic diagram of the structure of the grate bars provided in the embodiment of the utility model at another angle;

[0041] Figure 7 A schematic structural diagram of a grate plate module provided in an embodiment of the utility model.

[0042] icon:

[0043] 1-grate box; 11-fixing frame; 12-air inlet;

[0044] 2-grate bar; 21-mounting hole; 22-first curved surface; 23-second curved surface; 24-protrusion; 25-mounting block;

[0045] 3-Active axis;

[0046] 4-locking assembly; 41-locating pin; 42-limiting angle plate. DETAILED DESCRIPTION

[0047] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0048] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0049] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Physical quantities in formulas, if not separately marked, should be understood as basic quantities of the basic units of the International System of Units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0050] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0051] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In conjunction with the accompanying drawings, some embodiments of the present utility model are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0053] At present, grate plates are mainly made into integrated structures by casting or welding. Casting defects are prone to occur during the production process, which seriously affects the yield rate. Furthermore, the pores of the grate plates are prone to deformation and uneven heating, which results in uneven ventilation and unsatisfactory clinker cooling effect during use. In addition, since the grate cooler is in a closed working environment with high temperature and high wear for a long time, the grate plate is difficult to maintain and replace. It often needs to be replaced as a whole during maintenance, resulting in excessively high costs.

[0054] In view of this, the present invention provides a grate plate module, referring to Figures 1 to 7 The grate module comprises: a submodule, the submodule comprises a grate box 1, grate bars 2, a movable shaft 3 and a locking assembly 4; the top of the grate box 1 is open; a plurality of grate bars 2 are provided, and the plurality of grate bars 2 are sequentially laid along a straight line at the open portion of the grate box 1; the movable shaft 3 is in the grate box 1, and has a first position and a second position in the grate box 1, so as to be in a connected state and a separable state with each grate bar 2 respectively; the locking assembly 4 is arranged in the grate box 1, so as to lock or unlock the movable shaft 3, so that the movable shaft 3 can be switched between the first position and the second position.

[0055] In the grate plate module, a plurality of grate bars 2 are laid on the open part of the grate plate box 1 to form a grate plate; when the movable shaft 3 is in the first position, the grate bars 2 are connected to the movable shaft 3 and cannot be separated from the grate plate box 1. After the locking assembly 4 releases the lock on the movable shaft 3, the movable shaft 3 can be changed from the first position to the second position, and the grate bars 2 are no longer constrained. At this time, the grate bars 2 connected in series can be removed individually.

[0056] It can be seen that compared with the prior art, the grate plate of the grate plate module adopts a split design, so that the gap between adjacent grate bars 2 is adjustable, ensuring uniform ventilation, and a single grate bar 2 is easy to manufacture, which can improve the yield rate; through the cooperation of the locking component 4 and the movable shaft 3, the grate bars 2 in series can be fixed on the grate plate box 1, and can be removed individually, which is convenient for the maintenance and replacement of the grate bars 2.

[0057] For further reference, Figures 1 to 3 The bottom of the grate box 1 is provided with an air inlet 12. Figures 4 to 6 The top surface of the grate bar 2 has a first curved surface 22 protruding upward, and the bottom surface has a second curved surface 23 protruding upward, and a protrusion 24 is formed on the second curved surface 23; in each grate bar 2, two adjacent grate bars 2 are overlapped, and the protrusion 24 of one grate bar 2 conflicts with the first curved surface 22 of the other grate bar 2.

[0058] With the above design, a gap is formed between two adjacent grate bars 2, and the gap is connected to the inner cavity of the grate plate box 1. When air enters the air inlet 12, the air flow can flow out through the inner cavity and the gap to achieve cooling of the clinker on the grate plate.

[0059] Combination Figures 4 to 6 As shown, the two ends of the grate bar 2 are provided with mounting blocks 25, and the two mounting blocks 25 are respectively overlapped on the two opposite side plates of the grate plate box 1; the part of the grate bar 2 between the two mounting blocks 25 is between the two opposite side plates, and its two ends are respectively in contact with the two opposite side plates. Such a design ensures the stability of the laying of the grate bar 2 and facilitates the adjustment of the gap between adjacent grate bars 2 to meet the ventilation requirements.

[0060] In one embodiment of the application, reference Figures 3 to 6 The bottom of the grate bar 2 is provided with a mounting hole 21 extending along the axial direction of the movable shaft 3. The edge of the cross section of the mounting hole 21 is a major arc, and the opening of the major arc faces downward; the movable shaft 3 is columnar and penetrates the mounting hole 21. Its side surface is composed of two symmetrically distributed arc surfaces and two symmetrically distributed rectangular surfaces, wherein the two arc surfaces are connected between the two rectangular surfaces for fitting with the side wall of the mounting hole 21, and the spacing between the two rectangular surfaces is equal to the chord length corresponding to the major arc.

[0061] Specifically, Figure 4 For example, when the movable shaft 3 is in the first position, the two arc surfaces are in contact with the side walls of the mounting hole 21, and the movable shaft 3 constrains the grate bars 2, so that the grate bars 2 cannot be removed in a direction perpendicular to the movable shaft 3; after the locking assembly 4 releases the lock on the movable shaft 3, the movable shaft 3 can rotate around its own axis. After rotating 90°, the movable shaft 3 changes from the first position to the second position. At this time, one of the arc surfaces is facing the opening of the mounting hole 21, and the movable shaft 3 no longer has a constraining effect on the grate bars 2, and the grate bars 2 in series can be removed individually.

[0062] In other embodiments, Figure 4 For reference, the mounting hole 21 is also provided on the bottom wall of the grate bar 2 and extends along the axial direction of the movable shaft 3, but its opening faces the left side or the right side; the locking assembly 4 is transmission-connected with the movable shaft 3 to drive the movable shaft 3 to move in a direction perpendicular to its own axis to enter the mounting hole 21 of each grate bar 2 or to disengage from the mounting hole 21, so that the effect of restraining or releasing the restraint of the grate bar 2 can also be achieved.

[0063] For further reference, Figure 3 The locking assembly 4 includes a positioning pin 41 and a limiting angle plate 42. A fixing frame 11 is fixed on the inner bottom surface of the grate box 1; the positioning pin 41 is penetrated by the fixing frame 11 and can slide along its own axis, and the sliding direction is perpendicular to the movable axis 3; the limiting angle plate 42 is fixed to the positioning pin 41, and can move in the direction close to or away from the movable axis 3 when the positioning pin 41 slides, so as to correspond to the fit or separation with the rectangular surface.

[0064] Specifically, Figure 3 For example, at this time, the limiting angle plate 42 contacts the upper rectangular surface of the movable shaft 3, making the movable shaft 3 unable to rotate; when the positioning pin 41 moves to the left until the limiting angle plate 42 is disengaged from the movable shaft 3, the movable shaft 3 can rotate. When rotated 90°, the movable shaft 3 no longer has a restraining effect on the grate bars 2.

[0065] refer to Figure 7The grate plate module is composed of multiple sub-modules, which are arranged in an array, and the grate plate boxes 1 of each sub-module are fixedly connected to form an integrated structure. In this design, the grate bed is divided into multiple partitions, and each partition can reasonably select air volume and air pressure according to different thickness layers and porosity, and the fan can supply air separately according to different partitions.

[0066] The embodiment of the utility model further provides a grate cooler, which includes a grate plate module. Therefore, the technical advantages and effects achieved by the grate cooler also include the technical advantages and effects achieved by the above-mentioned grate plate module, which will not be repeated here.

[0067] The embodiment of the utility model further provides a firing system, which includes a grate cooler. Therefore, the technical advantages and effects achieved by the firing system also include the technical advantages and effects achieved by the above-mentioned grate cooler, which will not be repeated here.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A grate plate module, characterized in that: include: A submodule, the submodule comprising a grate plate box (1), grate bars (2), a movable shaft (3) and a locking assembly (4); The top of the grate box (1) is open; The grate bars (2) are provided in a plurality of pieces, and the plurality of grate bars (2) are sequentially laid along a straight line at the open portion of the grate plate box (1); The movable shaft (3) is located in the grate box (1) and has a first position and a second position in the grate box (1) so as to be in a connected state and a detachable state with each of the grate bars (2) respectively; The locking assembly (4) is arranged in the grate box (1) to lock or unlock the movable shaft (3), so that the movable shaft (3) can be switched between the first position and the second position.

2. The grate plate module according to claim 1, characterized in that: The bottom of the grate bar (2) is provided with a mounting hole (21) extending along the axial direction of the movable shaft (3); the edge of the cross section of the mounting hole (21) is a major arc, and the opening of the major arc faces downward; The movable shaft (3) is columnar and penetrates the mounting hole (21), and its side surface is composed of two symmetrically distributed arc surfaces and two symmetrically distributed rectangular surfaces, wherein the two arc surfaces are connected between the two rectangular surfaces and are used to fit with the side wall of the mounting hole (21), and the distance between the two rectangular surfaces is equal to the chord length corresponding to the major arc.

3. The grate plate module according to claim 2, characterized in that: The locking assembly (4) comprises a positioning pin (41) and a limiting angle plate (42); The positioning pin (41) is slidably connected to the grate box (1); The limiting angle plate (42) is fixed to the positioning pin (41), and can move towards or away from the movable axis (3) when the positioning pin (41) slides, so as to correspond to being attached to or separated from the rectangular surface.

4. The grate plate module according to claim 3, characterized in that: A fixing frame (11) is fixed on the inner bottom surface of the grate box (1), and the positioning pin (41) is inserted through the fixing frame (11) and can slide along its own axial direction, and the sliding direction is perpendicular to the movable shaft (3).

5. The grate plate module according to claim 1, characterized in that: The top surface of the grate bar (2) has a first curved surface (22) protruding in a direction away from the grate plate box (1), and the bottom surface has a second curved surface (23) protruding in a direction away from the grate plate box (1), and a protrusion (24) is formed on the second curved surface (23); In each of the grate bars (2), two adjacent grate bars (2) are overlapped and matched, and the protrusion (24) of one of the grate bars (2) abuts against the first curved surface (22) of the other grate bar (2).

6. The grate plate module according to claim 1, characterized in that: Mounting blocks (25) are provided at both ends of the grate bar (2), and the two mounting blocks (25) are respectively overlapped on two opposite side plates of the grate plate box (1).

7. The grate plate module according to claim 1, characterized in that: The bottom of the grate box (1) is provided with an air inlet (12).

8. The grate plate module according to any one of claims 1 to 7, characterized in that: There are a plurality of submodules, and the plurality of submodules are distributed in an array; The grate boxes (1) of each submodule are fixedly connected to form an integrated structure.

9. A grate cooler, characterized in that: Comprising the grate plate module according to any one of claims 1 to 8.

10. A firing system, characterized in that: Comprising the grate cooler as claimed in claim 9.

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