Passive stirring device

Abstract

The utility model relates to the technical field of coal chemical industry equipment, and discloses a passive stirring device which comprises a shell, the upper end and the lower end of the shell are open to form a feeding port and a discharging port, a stirring shaft is transversely arranged in the shell, the two ends of the stirring shaft are fixed to the two opposite side faces of the shell respectively, a plurality of stirring rods are arranged on the stirring shaft, and the stirring rods are arranged on the stirring shaft. A flow guide plate is arranged in the direction close to the feeding port, and the plane where the flow guide plate is located inclines towards the stirring shaft, so that materials fall onto the stirring shaft under the action of gravity after passing through the flow guide plate, and the stirring shaft is made to rotate. The stirring device provided by the utility model does not need a motor or other external power supplies, so that energy consumption can be greatly reduced, natural energy of gravity is utilized, and low-energy-consumption stirring operation is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of coal chemical equipment, in particular to a passive stirring device. Background Art

[0002] The coal for the coke oven in the ironmaking coking process is transported to the coke oven through a conveyor belt. The coal used is based on different process requirements, and various single coals are mixed according to the process proportion to achieve the required coke quality requirements. The material line system is mainly composed of a conveyor belt, a crushing device, a single coal storage tank, a belt scale, a mixed coal tank, a watering system, a transfer chute, etc. The watering system is installed on the mixed coal conveyor belt, and then sprayed on the surface of the coal material, resulting in uneven moisture content in the coal material, with some coal having less moisture and some having more moisture, which affects the quality of the coke. In order to further optimize the moisture content and proportion of the mixed coal and improve the quality of the coke, a stirring device is usually used for stirring. However, the existing stirring device usually needs to be equipped with a motor for driving, which has problems such as high energy and cost consumption in actual production.

[0003] Therefore, there is a need for improvement of passive stirring devices in the prior art. Utility Model Content

[0004] In view of this, the purpose of the embodiment of the utility model is to provide a passive stirring device, which utilizes the gravity of the material to fall and impact the stirring rod for stirring, and can achieve uniform stirring of the material without consuming energy.

[0005] Based on the above-mentioned purpose, an embodiment of the utility model provides a passive stirring device, which includes a chute shell, the upper and lower ends of the chute shell are both opened to form a feed port and a discharge port, and a stirring structure is horizontally arranged in the chute shell, and the stirring structure includes a stirring shaft and a plurality of stirring rods arranged on the stirring shaft, and the two ends of the stirring shaft are respectively fixed on two opposite sides of the chute shell, and the stirring shaft is provided with a plurality of stirring rods, and a guide plate is arranged in the direction close to the feed port, and the plane where the guide plate is located is inclined toward the direction of the stirring shaft, so that the material falls onto the stirring shaft under the action of gravity after passing through the guide plate and causes the stirring shaft to rotate.

[0006] In some embodiments, projections of the feed port area and the discharge port area of ​​the chute shell in the vertical direction have an overlap area of ​​50% to 100%.

[0007] In some embodiments, both ends of the agitator shaft are fixedly connected to the chute shell through bearing seats.

[0008] In some embodiments, the lower edge of the guide plate is arranged close to the axial direction of the stirring shaft.

[0009] In some embodiments, the lower edge of the guide plate is located in the same vertical plane as the axial direction of the stirring shaft.

[0010] In some embodiments, a plurality of stirring rods staggeredly distributed along the axial direction and the circumferential direction are disposed on the stirring shaft.

[0011] In some embodiments, the stir bar is a stainless steel stir bar.

[0012] In some embodiments, the stirring rods are staggered in length and short length.

[0013] In some embodiments, the stirring rod is fixedly connected to the stirring shaft by welding.

[0014] In some embodiments, the distance between the agitator shaft and the guide plate is 1 / 4 to 1 / 2 of the length of the chute shell.

[0015] The utility model has at least the following beneficial technical effects:

[0016] (1) Energy saving: Since the passive stirring device provided by the utility model does not require a motor or other external power source, energy consumption can be greatly reduced, and since the natural energy of gravity is utilized, a low-energy stirring operation is achieved.

[0017] (2) Simple structure: The device has a simple structure and no complicated mechanical parts, which makes it easy to manufacture and maintain. In addition, since it does not rely on electricity, it can be conveniently used in places where there is no power supply.

[0018] (3) Reliability: Since there are no wearing parts such as motors, this device has high reliability and long service life. It can adapt to various harsh environmental conditions such as high temperature, low temperature, humidity, etc.

[0019] (4) High efficiency: The device can generate continuous rotational force by the material flow falling from the upper part of the chute to impact the stirring rod, thereby achieving fast and efficient stirring. This helps to improve production efficiency and product quality.

[0020] (5) Safety: Since this device does not use any electricity, there is no safety hazard such as electric shock during use. It is suitable for use in ironmaking and coking processes and can ensure the safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A front view of an embodiment of the passive stirring device provided by the utility model;

[0023] Figure 2 A left side view of an embodiment of the passive stirring device provided by the utility model;

[0024] Figure 3 This is a schematic diagram of an embodiment of the stirring structure provided by the utility model.

[0025] Description of reference numerals:

[0026] 10. Chute shell; 20. Feed inlet; 30. Discharge outlet; 40. Stirring structure; 50. Material flow; 60. Guide plate; 41. Stirring shaft; 42. Stirring rod; 43. Bearing seat. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by terms such as "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0029] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0030] In the specification and claims of the utility model and the above-mentioned drawings, when an element is referred to as being "fixed on" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element.

[0031] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] like Figures 1-2 The figure shows a schematic diagram of an embodiment of the passive stirring device provided by the utility model, wherein: Figure 1 For the main view, Figure 2 It is a left view, in which the passive stirring device includes a chute shell 10, the upper and lower ends of which are both opened to form a feed port 20 and a discharge port 30, a stirring structure 40 is transversely arranged in the chute shell 10, the stirring structure 40 includes a stirring shaft 41, both ends of the stirring shaft 41 are respectively fixed on two opposite side surfaces of the chute shell 10, a plurality of stirring rods 42 are arranged on the stirring shaft 41, and a guide plate 60 is arranged in the chute shell 10 near the feed port 20, and the plane where the guide plate 60 is located is inclined toward the direction of the stirring shaft 41, so that the material flow 50 passes through the guide plate 60 and falls onto the stirring shaft 41 under the action of gravity, causing the stirring shaft 41 to rotate, thereby causing the stirring rod 42 to rotate to achieve a stirring effect.

[0033] Furthermore, the projections of the feed port 20 region and the discharge port 20 region of the chute housing 10 in the vertical direction have an overlap area of ​​50% to 100%. Figure 2 As shown, the passive stirring device is tilted in the vertical direction. When the material enters, it falls to the discharge port 30 through the action of the stirring structure. The discharge port 30 and the feed port 20 have a certain deviation in the vertical direction to prevent the material from not falling directly to the discharge port 30, thereby improving the stirring effect.

[0034] Further, the stirring structure 40 includes a stirring shaft 41 and a stirring rod disposed on the stirring shaft 41. Both ends of the stirring shaft 41 are fixedly connected to the chute housing 10 through a bearing seat 43. Specifically, the outer shell of the bearing seat 43 is connected to the chute housing 10, and the end of the stirring shaft 41 is engaged with the bearing in the bearing seat 41 to achieve free rotation. In some preferred embodiments, a ball bearing is used as a rotating support of the shaft to reduce the rotation resistance.

[0035] Furthermore, the lower edge of the guide plate 60 is arranged close to the axial direction of the stirring shaft 41. Figure 2As shown, in some preferred embodiments, the lower edge of the guide plate 60 is in the same vertical plane as the axial direction of the stirring shaft 41. When the material flow 50 impacts the plate surface of the guide plate 60, and slides freely down with the guide plate 60 and falls to the axial position of the stirring shaft, the stirring shaft 41 is driven to rotate due to the energy of gravity. The design of the guide plate 60 can guide the material flow to impact the agitator more concentratedly, generate a greater driving force, and thus improve the energy utilization rate. The design of the guide plate 60 can make the material flow more stably impact the agitator downward, and impact the stirring structure 40 on the same side, preventing the material from simultaneously impacting both ends of the stirring structure and causing the problem of being unable to rotate, thereby enhancing the stirring effect and improving the uniformity of mixing. In addition, the material flow guided by the guide plate 60 can be more evenly distributed to various parts of the stirring structure 40, reducing the wear of a single stirring rod and extending the service life of the stirring structure 40.

[0036] Furthermore, if Figure 3 As shown, a plurality of stirring rods 42 staggered in the axial and circumferential directions are provided on the stirring shaft 41. This design enables a more complex and effective stirring effect to be produced when the material flow impacts the stirring rods 42. Specifically, the stirring rods 42 distributed in the axial direction can guide the flow direction of the material flow 50, so that the material is better mixed in the axial direction, while the stirring rods 42 staggered in the circumferential direction can increase the mixing effect of the material in the circumferential direction, making the stirring more uniform. In addition, the staggered distribution of the plurality of stirring rods 42 can disperse the impact force of the material flow on the stirring rod 42, reduce the wear of a single stirring rod 42, and thus extend the service life of the equipment.

[0037] Preferably, the stirring rod 42 is made of a wear-resistant material, preferably a stainless steel stirring rod. The stainless steel stirring rod has a smooth surface, which helps to reduce the friction resistance of the material during the stirring process, prevent the material from sticking to the stirring rod, and improve the mixing effect. Stainless steel has excellent corrosion resistance, especially in acidic or alkaline solutions. This ensures that the stirring rod will not be damaged by corrosion during long-term use, thereby extending the service life of the stirring rod.

[0038] Preferably, the stirring rods 42 are staggered in length, and the stirring rods of different lengths will form different stirring ranges when rotating. The long stirring rods can penetrate deep into the material to achieve deep stirring, while the short stirring rods can better adapt to the surface of the material and promote surface mixing. This staggered distribution can ensure that the material is fully stirred at all levels, thereby improving the uniformity of mixing.

[0039] Preferably, the stirring rod 42 is fixedly connected to the stirring shaft 41 by welding, which is a more secure connection.

[0040] Furthermore, the spacing between the stirring shaft 42 and the guide plate 60 accounts for 1 / 4 to 1 / 2 of the length of the chute shell. A wider spacing can obtain higher gravitational potential energy to further obtain a better effect of material impacting the stirring structure 40 and realize passive automatic operation.

[0041] The passive stirring device provided by the utility model is installed in each chute, and the material flow falling from the upper part of the chute impacts the stirring rod of the stirrer, and then mixes and stirs in the falling process, so as to achieve the purpose of further stirring the mixed coal in a non-energy-consuming way, solve the problem of uneven mixed materials, and improve product quality.

[0042] The above are exemplary embodiments disclosed by the present utility model, but it should be noted that various changes and modifications may be made without departing from the scope of the present utility model embodiments disclosed by the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed by the present utility model embodiments may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0043] It should be understood that, as used herein, the singular forms "a", "an" are intended to include the plural forms as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations including one or more of the associated listed items.

[0044] The serial numbers of the embodiments disclosed in the above-mentioned embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0045] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A passive stirring device, characterized in that: The passive stirring device comprises a chute shell, the upper end and the lower end of the chute shell are both opened to form a feed port and a discharge port, a stirring structure is transversely arranged in the chute shell, the stirring structure comprises a stirring shaft and a plurality of stirring rods arranged on the stirring shaft, the two ends of the stirring shaft are respectively fixed on two opposite side surfaces of the chute shell, a guide plate is arranged in the direction close to the feed port, and the plane where the guide plate is located is inclined in the direction of the stirring shaft, so that the material falls onto the stirring shaft under the action of gravity after passing through the guide plate and the stirring shaft is rotated; Wherein, the stirring shaft is provided with a plurality of stirring rods which are staggeredly distributed along the axial direction and the circumferential direction, and the lengths of the stirring rods are staggeredly distributed.

2. The passive stirring device according to claim 1, characterized in that: The projections of the feed port area and the discharge port area of ​​the chute shell in the vertical direction have an overlap area of ​​50% to 100%.

3. The passive stirring device according to claim 1, characterized in that: Both ends of the stirring shaft are fixedly connected to the chute shell through bearing seats.

4. The passive stirring device according to claim 1, characterized in that: The lower edge of the guide plate is arranged close to the axial direction of the stirring shaft.

5. The passive stirring device according to claim 4, characterized in that: The lower edge of the guide plate is located in the same vertical plane as the axial direction of the stirring shaft.

6. The passive stirring device according to claim 1, characterized in that: The stirring rod is a stainless steel stirring rod.

7. The passive stirring device according to claim 1, characterized in that: The stirring rod is fixedly connected to the stirring shaft by welding.

8. The passive stirring device according to claim 1, characterized in that: The distance between the stirring shaft and the guide plate accounts for 1 / 4 to 1 / 2 of the length of the chute shell.

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