Sintering fuel mixing device

Abstract

The utility model provides a sintering fuel mixing device which comprises a machine frame, a driving mechanism, a rotating shaft, an installation disc and a plurality of blade assemblies distributed in the circumferential direction of the installation disc at intervals, the driving mechanism is installed on the machine frame, the rotating shaft is rotatably installed on the machine frame and arranged above a sintering machine trolley, and the blade assemblies are arranged on the installation disc. The mounting disc is connected to the peripheral wall of the rotating shaft and synchronously moves along with the rotating shaft, the blade assembly is mounted on the peripheral wall of the mounting disc and synchronously moves along with the mounting disc, and the driving mechanism drives the rotating shaft to rotate to drive the blade assembly to uniformly mix a top mixture and fuel of the sintering machine trolley. Continuous and stable uniform mixing of a mixture and fuel at the top of the sintering machine trolley is achieved, the uniform mixing efficiency is high, heat distribution of a sintering material layer is optimized, the surface layer sintering ore quality is improved, and energy consumption is reduced. The blades are arranged in a staggered mode, it is guaranteed that even mixing can be conducted on the material face, and the mixing depth of fuel and a mixture is adjustable.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering, in particular to a sintering fuel mixing device. Background Art

[0002] In steel production, iron-containing raw ore needs to be processed by a sintering system before entering the blast furnace for smelting. That is, various powdered iron-containing raw materials are mixed with an appropriate amount of fuel (coal powder, coke powder) and flux, and an appropriate amount of water. After mixing and pelletizing, they are placed on a sintering trolley and roasted to cause a series of physical and chemical changes to occur, forming sintered ore that is easy to smelt. This process is called sintering.

[0003] In the sintering solid fuel splitting process, a portion of the fuel is mixed with the sintering mix and used in the pelletizing process. The other portion of the external fuel is applied to the surface of the mix particles via the upper deck of the sintering machine trolley after the secondary mixing of the sintering mix. This effectively reduces sintering solid fuel consumption, saves energy and reduces carbon emissions, while also improving the sintering yield, the sintering utilization factor, and the strength of the sintered ore.

[0004] In the existing technology, the loosening device mainly adopts the form of rake teeth, which drives the rake teeth on the crank arm to move through the crankshaft to achieve loosening and mixing of the mixture and the fuel layer. Although this technology has a certain effect on mixing the surface fuel and the mixture, the structure has only one row of rake teeth, which mainly performs linear reciprocating motion through the connecting rod, and is in a discontinuous loosening and mixing state. The mixing effect is general, and it is difficult to adjust in the height direction, and the mixing depth cannot be flexibly adjusted.

[0005] In view of this, it is necessary to propose a sintering fuel mixing device to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0006] The main purpose of the utility model is to provide a sintering fuel mixing device to solve the technical problems of the prior art using a rake-shaped loosening device, discontinuous loosening and mixing, and general mixing effect.

[0007] To achieve the above-mentioned purpose, the utility model provides a sintering fuel mixing device, comprising a frame, a driving mechanism, a rotating shaft, a mounting disk, and a plurality of blade assemblies arranged at intervals along the circumference of the mounting disk; wherein, the driving mechanism is mounted on the frame, the rotating shaft is rotatably mounted on the frame, the rotating shaft is arranged above the sintering machine trolley, the mounting disk is connected to the outer peripheral wall of the rotating shaft and moves synchronously with the rotating shaft, the blade assembly is mounted on the outer peripheral wall of the mounting disk and moves synchronously with the mounting disk, and the driving mechanism drives the rotating shaft to rotate and drives the blade assembly to mix the top mixture and fuel of the sintering machine trolley.

[0008] Preferably, there are multiple mounting plates, and the multiple mounting plates are evenly spaced apart along the extending direction of the rotating shaft.

[0009] Preferably, each of the blade assemblies includes a plurality of blades arranged along the extension direction of the rotating shaft, each of the blades is concave with its opening facing the rotating shaft, and the blade includes a first side connecting section, a middle stirring section and a second side connecting section which are connected in sequence along its own extension direction, and each of the mounting plates has a first end face and a second end face which are relatively arranged in its own thickness direction, wherein the first side connecting section of the i-th blade is connected to the first end face of the i-th mounting plate, the second side connecting section of the i-th blade is connected to the second end face of the i+1-th mounting plate, and the first side connecting section of the i+1-th blade is connected to the first end face of the i+1-th mounting plate.

[0010] Preferably, the end surface of the middle stirring section away from the rotating shaft is an inclined surface, and the inclination angle of the inclined surface is set between 30° and 60°.

[0011] Preferably, the first side connecting section is provided with a first connecting hole for a bolt to pass through, the mounting plate is provided with a second connecting hole corresponding to the first connecting hole, the second side connecting section is provided with a third connecting hole for a bolt to pass through, the mounting plate is provided with a fourth connecting hole corresponding to the third connecting hole, the first side connecting section is connected to the mounting plate by bolts passing through the first connecting hole and the second connecting hole, and the second side connecting section is connected to the mounting plate by bolts passing through the third connecting hole and the fourth connecting hole.

[0012] Preferably, the frame includes a first frame assembly and a second frame assembly which are relatively arranged on both sides of the sintering machine trolley, the first frame assembly includes a first bracket, a first height adjustment assembly and a first bearing seat, and the first height adjustment assembly is connected to the first bracket for adjusting the installation height of the first bearing seat;

[0013] The second frame assembly includes a second bracket, a second height adjustment assembly and a second bearing seat. The second height adjustment assembly is connected to the second bracket and is used to adjust the installation height of the second bearing seat; one end of the rotating shaft is connected to the first bearing seat, and the other end of the rotating shaft is connected to the second bearing seat.

[0014] Preferably, the first height adjustment assembly includes a plurality of first adjustment gaskets stacked vertically in sequence, the bottom first adjustment gasket is arranged on the top of the first bracket, and the first bearing seat is installed on the top of the top first adjustment gasket;

[0015] The second height adjustment assembly includes a plurality of second adjustment gaskets stacked vertically in sequence, the bottom second adjustment gasket is arranged on the top of the second bracket, and the second bearing seat is installed on the top of the top second adjustment gasket.

[0016] Preferably, the plurality of blade assemblies are evenly spaced apart along the circumference of the mounting plate.

[0017] Preferably, the thickness of each of the first adjustment gasket and the second adjustment gasket is set to 10-20 mm.

[0018] Preferably, the inner peripheral wall of the mounting plate and the outer peripheral wall of the rotating shaft are welded.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The utility model provides a sintering fuel mixing device, which comprises a frame, a driving mechanism, a rotating shaft, a mounting disk, and a plurality of blade assemblies arranged at intervals along the circumference of the mounting disk. The driving mechanism is mounted on the frame, the rotating shaft is rotatably mounted on the frame, the rotating shaft is arranged above a sintering machine trolley, the mounting disk is connected to the outer peripheral wall of the rotating shaft and moves synchronously with the rotating shaft, the blade assembly is mounted on the outer peripheral wall of the mounting disk and moves synchronously with the mounting disk, and the driving mechanism drives the rotating shaft to rotate, driving the blade assembly to mix the mixed material and fuel on the top of the sintering machine trolley.

[0021] The movement form of the blade assembly of the present application is rotational motion, which realizes the continuous and stable mixing of the mixture and fuel on the top of the sintering machine trolley, and the mixing efficiency is high. The mixed fuel and mixture can optimize the heat distribution of the sintering material layer, improve the quality of the surface sintered ore, and reduce energy consumption. Furthermore, the blades are staggered with each other. This cross-connected arrangement allows the blades to form a continuous stirring network, which improves the stirring efficiency and reduces the gaps between the blades, ensuring that the material surface can be mixed. Furthermore, the present application has the characteristics of simple structure, easy maintenance, adjustable mixing depth of fuel and mixture, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a front view of an overall structural application scenario diagram in one embodiment of the present utility model;

[0024] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0025] Figure 3 A top view of an overall structural application scenario diagram in one embodiment of the present utility model;

[0026] Figure 4 A schematic diagram of a blade assembly stirring fuel and mixed material in one embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the blade structure in one embodiment of the present utility model;

[0028] Figure 6 It is a side view of a blade in one embodiment of the present invention.

[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0030] Description of Figure Numbers:

[0031] 10. Frame; 110. First frame assembly; 111. First bracket; 112. First height adjustment assembly; 113. First bearing seat; 120. Second frame assembly; 121. Second bracket; 122. Second height adjustment assembly; 123. Second bearing seat; 20. Drive mechanism; 30. Rotating shaft; 40. Mounting plate; 410. First end face; 420. Second end face; 50. Blade assembly; 510. Blade; 511. First side connecting section; 5111. First connecting hole; 512. Middle stirring section; 5121. Inclined surface; 513. Second side connecting section; 5131. Third connecting hole; 60. Mixture; 70. Fuel; 80. Sintering machine trolley. DETAILED DESCRIPTION

[0032] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as described in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0036] Please see the attached Figures 1 to 6 The utility model provides a sintering fuel mixing device in one embodiment, including a frame 10, a driving mechanism 20, a rotating shaft 30, a mounting disk 40, and a plurality of blade assemblies 50 arranged at intervals along the circumference of the mounting disk 40; wherein, the driving mechanism 20 is mounted on the frame 10, the rotating shaft 30 is rotatably mounted on the frame 10, the rotating shaft 30 is arranged above the sintering machine trolley 80, the mounting disk 40 is connected to the outer peripheral wall of the rotating shaft 30 and moves synchronously with the rotating shaft 30, the blade assembly 50 is mounted on the outer peripheral wall of the mounting disk 40 and moves synchronously with the mounting disk 40, the driving mechanism 20 drives the rotating shaft 30 to rotate and drives the blade assembly 50 to mix the top mixture 60 and the fuel 70 of the sintering machine trolley 80.

[0037] Specifically, the drive mechanism 20 is mounted on the frame 10 and is the power source of the entire device; the rotating shaft 30 is rotatably mounted on the frame 10 and is connected to the mounting plate 40. When the rotating shaft 30 rotates, the mounting plate 40 moves synchronously with the rotating shaft 30. When the mounting plate 40 rotates, the blade assembly 50 also moves synchronously. The design of the blade assembly 50 enables it to effectively stir and mix the mixture 60 and the fuel 70 on the top of the sintering machine trolley 80, thereby achieving the purpose of mixing. The movement form of the blade assembly 50 of the present application is a rotary motion, which realizes continuous and stable mixing of the mixture 60 and the fuel 70 on the top of the sintering machine trolley 80, with high mixing efficiency. The mixed fuel 70 and the mixture 60 can optimize the heat distribution of the sintering material layer, improve the quality of the surface sintered ore, and reduce energy consumption.

[0038] As a preferred example, there are multiple mounting plates 40 , and the multiple mounting plates 40 are evenly spaced apart along the extending direction of the rotating shaft 30 .

[0039] As a preferred embodiment, each of the blade assemblies 50 includes a plurality of blades 510 arranged along the extension direction of the rotating shaft 30, and each of the blades 510 is concave with its opening facing the rotating shaft 30. The blade 510 includes a first side connecting section 511, a middle stirring section 512, and a second side connecting section 513 connected in sequence along its own extension direction. Each of the mounting plates 40 has a first end face 410 and a second end face 420 that are relatively arranged in its own thickness direction, wherein the first side connecting section 511 of the i-th blade 510 is connected to the first end face 410 of the i-th mounting plate 40, the second side connecting section 513 of the i-th blade 510 is connected to the second end face 420 of the i+1-th mounting plate 40, and the first side connecting section 511 of the i+1-th blade 510 is connected to the first end face 410 of the i+1-th mounting plate 40.

[0040] Specifically, through the rotation of the driving mechanism 20, the blade assembly 50 brings up the fuel 70 and the mixture 60 and mixes them evenly. The principle is similar to that of an egg beater. Figure 2 As shown, the blades 510 are arranged in an interlaced manner. This cross-connected arrangement allows the blades 510 to span multiple mounting plates 40, forming a continuous stirring network. This improves stirring efficiency and reduces the gaps between the blades 510, ensuring uniform mixing across the entire surface of the material. The variable i is introduced to illustrate the positional connection relationship between two adjacent blades 510 and between the blades 510 and the mounting plates 40. The blades 510 include a first side connecting section 511, a central stirring section 512, and a second side connecting section 513, forming a U-shaped or concave structure. This structure not only enhances the strength of the blades 510 themselves, but also allows the blades 510 to better adapt to the connection between the mounting plates 40, thereby improving the structural stability of the entire device.

[0041] As a preferred example, the end surface of the middle stirring section 512 away from the rotating shaft 30 is a slope 5121, and the inclination angle of the slope 5121 is set between 30° and 60°. Figure 6 As shown, preferably, the inclination direction of the inclined surface 5121 matches the rotation direction of the rotating shaft 30, for example Figure 6 When the rotation direction of the rotating shaft 30 is counterclockwise, the inclination direction of the inclined surface 5121 is the same as Figure 6 As shown in the figure, this design can lift the material to a certain extent and achieve a better mixing effect.

[0042] Furthermore, the first side connecting section 511 is provided with a first connecting hole 5111 for a bolt to pass through, the mounting plate 40 is provided with a second connecting hole (not shown) corresponding to the first connecting hole 5111, the second side connecting section 513 is provided with a third connecting hole 5131 for a bolt to pass through, and the mounting plate 40 is provided with a fourth connecting hole (not shown) corresponding to the third connecting hole 5131. The first side connecting section 511 is connected to the mounting plate 40 by bolts passing through the first connecting hole 5111 and the second connecting hole, and the second side connecting section 513 is connected to the mounting plate 40 by bolts passing through the third connecting hole 5131 and the fourth connecting hole. The first side connecting section 511 and the second side connecting section 513 are respectively fixed to the mounting plate 40 by bolts, forming a strong mechanical connection, ensuring the stability and durability of the overall structure, and the bolted connection facilitates assembly and disassembly.

[0043] As a preferred embodiment, the frame 10 includes a first frame assembly 110 and a second frame assembly 120 arranged on both sides of the sintering machine trolley 80. The first frame assembly 110 includes a first bracket 111, a first height adjustment assembly 112 and a first bearing seat 113. The first height adjustment assembly 110 is connected to the first bracket 111 and is used to adjust the installation height of the first bearing seat 113.

[0044] The second frame assembly 120 includes a second bracket 121, a second height adjustment assembly 122 and a second bearing seat 123. The second height adjustment assembly 120 is connected to the second bracket 121 for adjusting the installation height of the second bearing seat 123; one end of the rotating shaft 30 is connected to the first bearing seat 113, and the other end of the rotating shaft 30 is connected to the second bearing seat 123.

[0045] Furthermore, the first height adjustment assembly 110 includes a plurality of first adjustment gaskets (not shown) stacked vertically in sequence, the bottom first adjustment gasket being disposed on top of the first bracket 111, and the first bearing seat 113 being mounted on top of the top first adjustment gasket;

[0046] The second height adjustment assembly 120 includes a plurality of second adjustment gaskets (not shown) stacked vertically in sequence. The bottom second adjustment gasket is arranged on the top of the second bracket 121, and the second bearing seat 123 is installed on the top of the top second adjustment gasket.

[0047] Specifically, the first height adjustment assembly 112 is composed of a plurality of first adjustment shims stacked vertically, which can be increased or decreased as needed to adjust the installation height of the first bearing seat 113. The second height adjustment assembly 122 is composed of a plurality of second adjustment shims stacked vertically, and the first height adjustment assembly 112 and the second height adjustment assembly 122 are adapted to each other in the height direction, preferably with the rotating shaft 30 in a horizontal state.

[0048] The installation heights of the first bearing seat 113 and the second bearing seat 123 can be easily adjusted through the adjustment gaskets in the first height adjustment assembly 112 and the second height adjustment assembly 122, which has the characteristics of simple structure, easy maintenance, adjustable mixing depth of the fuel 70 and the mixture 60, and low cost.

[0049] Furthermore, the plurality of blade assemblies 50 are evenly spaced and arranged along the circumference of the mounting plate 40 .

[0050] As a preferred example, the thickness of each of the first adjustment gasket and the second adjustment gasket is set to 10 to 20 mm. In other embodiments, those skilled in the art can also set the thickness to other values ​​as needed.

[0051] Furthermore, the inner peripheral wall of the mounting plate 40 and the outer peripheral wall of the rotating shaft 30 are welded.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sintering fuel mixing device, characterized in that: It includes a frame, a driving mechanism, a rotating shaft, a mounting plate, and a plurality of blade assemblies spaced apart along the circumference of the mounting plate; wherein, The driving mechanism is mounted on the frame, the rotating shaft is rotatably mounted on the frame, the rotating shaft is provided above the sintering machine trolley, the mounting disk is connected to the outer peripheral wall of the rotating shaft and moves synchronously with the rotating shaft, the blade assembly is mounted on the outer peripheral wall of the mounting disk and moves synchronously with the mounting disk, the driving mechanism drives the rotating shaft to rotate and drives the blade assembly to mix the mixture and fuel on the top of the sintering machine trolley.

2. The sintering fuel mixing device according to claim 1, characterized in that: There are multiple mounting plates, and the multiple mounting plates are evenly spaced and arranged along the extending direction of the rotating shaft.

3. The sintering fuel mixing device according to claim 2, characterized in that: Each of the blade assemblies includes a plurality of blades arranged along the extension direction of the rotating shaft, each of the blades is concave with its opening facing the rotating shaft, and the blade includes a first side connecting section, a middle stirring section, and a second side connecting section that are sequentially connected along its own extension direction, and each of the mounting plates has a first end face and a second end face that are relatively arranged in its own thickness direction, wherein the first side connecting section of the i-th blade is connected to the first end face of the i-th mounting plate, the second side connecting section of the i-th blade is connected to the second end face of the i+1-th mounting plate, and the first side connecting section of the i+1-th blade is connected to the first end face of the i+1-th mounting plate.

4. The sintering fuel mixing device according to claim 3, characterized in that: The end surface of the middle stirring section away from the rotating shaft is an inclined surface, and the inclination angle of the inclined surface is set between 30° and 60°.

5. The sintering fuel mixing device according to claim 3, characterized in that: The first side connecting section is provided with a first connecting hole for a bolt to pass through, the mounting plate is provided with a second connecting hole corresponding to the first connecting hole, the second side connecting section is provided with a third connecting hole for a bolt to pass through, the mounting plate is provided with a fourth connecting hole corresponding to the third connecting hole, the first side connecting section is connected to the mounting plate by bolts passing through the first connecting hole and the second connecting hole, and the second side connecting section is connected to the mounting plate by bolts passing through the third connecting hole and the fourth connecting hole.

6. The sintering fuel mixing device according to claim 1, characterized in that: The frame includes a first frame assembly and a second frame assembly which are relatively arranged on both sides of the sintering machine trolley, the first frame assembly includes a first bracket, a first height adjustment assembly and a first bearing seat, and the first height adjustment assembly is connected to the first bracket for adjusting the installation height of the first bearing seat; The second frame assembly includes a second bracket, a second height adjustment assembly and a second bearing seat. The second height adjustment assembly is connected to the second bracket and is used to adjust the installation height of the second bearing seat; one end of the rotating shaft is connected to the first bearing seat, and the other end of the rotating shaft is connected to the second bearing seat.

7. The sintering fuel mixing device according to claim 6, characterized in that: The first height adjustment assembly includes a plurality of first adjustment washers stacked vertically, the bottom first adjustment washers are arranged on top of the first bracket, and the first bearing seat is mounted on top of the top first adjustment washers; The second height adjustment assembly includes a plurality of second adjustment gaskets stacked vertically in sequence, the bottom second adjustment gasket is arranged on the top of the second bracket, and the second bearing seat is installed on the top of the top second adjustment gasket.

8. The sintering fuel mixing device according to claim 1, characterized in that: The plurality of blade assemblies are evenly spaced and arranged along the circumference of the mounting plate.

9. The sintering fuel mixing device according to claim 7, characterized in that: The thickness of each of the first adjustment gasket and the second adjustment gasket is set to 10-20 mm.

10. The sintering fuel mixing device according to claim 7, characterized in that: The inner peripheral wall of the mounting plate and the outer peripheral wall of the rotating shaft are welded.

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