Rotary kiln discharging device and rotary kiln
By installing a rotating shaft and scraper inside the rotary kiln discharge pipe, the blockage problem caused by ash and slag adhesion was solved, and the material was discharged smoothly.
Patent Information
- Application Number
- CN202423162609.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Ash and slag easily adhere to the inner wall of the discharge pipe of the rotary kiln, causing the inner diameter of the pipe to become smaller, which in turn makes the sintered material easy to get stuck, resulting in blockage of the discharge pipe.
A rotating shaft and multiple scrapers spirally arranged around the shaft are installed inside the discharge pipe. The scrapers are driven to rotate by a drive assembly to sweep the inner wall of the discharge pipe and break up large pieces of sintered material.
This effectively avoids clogging of the discharge pipe and ensures smooth material discharge.
Smart Images
Figure CN223726833U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to environmental protection equipment technical field, and specifically relates to a rotary kiln discharging device and rotary kiln. BACKGROUND
[0002] Hazardous waste mainly refers to waste discharged in industrial production process, and has cumulative, lagging and long-term nature of harmful consequences, and the physical method commonly used in the treatment of solid waste residue at present is high-temperature incineration. The rotary kiln incinerator is a widely used device for waste combustion, and the rotary kiln incinerator refers to the incinerator provided with a refractory lining in the cylindrical body made of steel plate. It is slightly inclined horizontally and rotates slowly, and makes the waste supplied from the upper part transfer to the lower part, and makes the air supplied from the front or rear part burn.
[0003] After the hazardous waste is treated at high temperature by the rotary kiln, it is usually divided into three kinds of waste: sintered material, flue gas and ash. The sintered material is a large piece of waste, which is generally used for recycling and utilization; the flue gas is industrial waste gas, which needs to be treated before being discharged into the atmosphere; and the ash is an inorganic substance that has been burned and needs to be disposed of specially.
[0004] Among them, the sintered material and the ash need to be discharged from the discharge pipe of the rotary kiln, but the ash is easy to adhere to the inner wall of the pipe, and the more it accumulates, the smaller the inner diameter of the pipe becomes, and thus the sintered material is easy to be stuck in the pipe, which makes the discharge pipe prone to be blocked. SUMMARY
[0005] The utility model provides a rotary kiln discharging device and rotary kiln, and aims at solving the technical problem put forward in the above background technology.
[0006] In order to achieve the above purpose, the utility model adopts the technical scheme that:
[0007] In the first aspect, the utility model embodiment provides a rotary kiln discharging device, which comprises:
[0008] The discharge pipe is connected with the discharge port of the rotary kiln body at the upper end and extends downward at the other end;
[0009] The scraping assembly comprises a rotating shaft and a plurality of scrapers, the rotating shaft is rotationally matched with the discharge pipe, a plurality of the scrapers are spirally and intervaliy arranged around the rotating shaft and connected with the rotating shaft, and is used for hanging and scraping the inner wall of the discharge pipe and crushing large sintered material; and
[0010] The driving assembly is connected with the rotating shaft at the power output end and is used for driving the rotating shaft to rotate.
[0011] With the first aspect, in a possible implementation of the rotary kiln discharging device provided by the utility model, the length direction of the scraper is perpendicular to the axis of the rotating shaft.
[0012] With the first aspect, in a possible implementation of the rotary kiln discharging device provided by the utility model, the width direction of the scraper is arranged at an angle with the axis of the rotating shaft.
[0013] With the first aspect, in a possible implementation of the rotary kiln discharging device provided by the utility model, the projections of the two adjacent scrapers on the axis of the rotating shaft overlap by a preset distance.
[0014] With the first aspect, in a possible implementation of the rotary kiln discharging device provided by the utility model, the discharging pipe is internally provided with a support, and the rotating shaft is rotationally matched with the support.
[0015] With the first aspect, in a possible implementation of the rotary kiln discharging device provided by the utility model, further comprising a first bearing, which is arranged between the support and the rotating shaft, and wherein an outer ring of the first bearing is connected with the support, and an inner ring is connected with the rotating shaft.
[0016] With the first aspect, in a possible implementation of the rotary kiln discharging device provided by the utility model, further comprising an elastic supporting assembly, wherein the rotating shaft is slidingly matched with the first bearing, has a freedom degree of relative sliding in the axial direction, and the elastic supporting assembly is connected with the support and the rotating shaft, and is used for elastically supporting the rotating shaft.
[0017] With the first aspect, in a possible implementation of the rotary kiln discharging device provided by the utility model, the elastic supporting assembly comprises:
[0018] a thrust bearing arranged on the upper side of the support and connected with the rotating shaft; and
[0019] a supporting spring arranged between the thrust bearing and the support and connected with the thrust bearing and the support at two ends respectively.
[0020] In the second aspect, the utility model embodiment further provides a rotary kiln, which comprises a kiln body and the rotary kiln discharging device, and wherein a driving assembly is connected with the kiln body, and an upper end of a discharging pipe is connected with a discharging port of the kiln body.
[0021] The rotary kiln discharging device has the advantages that, compared with the prior art, the rotary kiln discharging device provided by the utility model, through the discharging pipeline, the material is connected and guided, and the rotary shaft and the plurality of scraping blades spirally arranged around the rotary shaft are arranged in the discharging pipeline; when discharging, the rotary shaft and the scraping blades thereon are driven to rotate by the driving assembly, the inner wall of the discharging pipeline is simultaneously swept by the rotating scraping blades, and the large sintered material is broken, thereby effectively avoiding the blockage of the discharging pipeline.
[0022] The rotary kiln has the advantages that, compared with the prior art, the rotary kiln provided by the utility model, through the discharging pipeline, the material is connected and guided, and the rotary shaft and the plurality of scraping blades spirally arranged around the rotary shaft are arranged in the discharging pipeline; when discharging, the rotary shaft and the scraping blades thereon are driven to rotate by the driving assembly, the inner wall of the discharging pipeline is simultaneously swept by the rotating scraping blades, and the large sintered material is broken, thereby effectively avoiding the blockage of the discharging pipeline. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 A front view structural schematic diagram of the rotary kiln discharging device provided by the utility model embodiment is provided.
[0024] Figure 2 A partial sectional view structural diagram along line A-A in the middle. Figure 1
[0025] Figure 3 A front view structural schematic diagram of the scraping assembly in the rotary kiln discharging device provided by the utility model embodiment is provided.
[0026] Figure 4 A partial structural schematic diagram of the rotary kiln provided by the utility model embodiment is provided.
[0027] BRIEF DESCRIPTION OF DRAWINGS
[0028] 10, discharging pipeline; 11, support; 12, first bearing; 21, rotary shaft; 22, scraping blade;
[0029] 31, thrust bearing; 32, supporting spring; 40, driving assembly; 50, kiln body. DETAILED DESCRIPTION
[0030] In order to make the technical problems, technical schemes and beneficial effects of the utility model to be solved clearer and more apparent, the utility model is further described in detail in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.
[0031] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The following description of at least one example embodiment is merely illustrative in nature and not intended to limit the present application or its application or uses in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.
[0032] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a reference to the presence of a feature, step, operation, device, component and / or combinations thereof.
[0033] Unless specifically stated otherwise, the relative arrangements of the components and steps illustrated in these embodiments and the numerical expressions and values set forth herein are not limiting. It should be understood that the various parts of the drawings are not necessarily drawn to scale, and that, for the purpose of convenience and clarity, not all components and steps can be shown in a given figure. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but are intended to be part of the specification, where appropriate. In all examples shown and discussed herein, any specific values are intended to be exemplary only and are not limiting. Other examples of the exemplary embodiments can have different values. It should be noted that like numbers and letters on the attached drawings represent like parts throughout the several views, and therefore, once a part has been defined in one figure, it is not necessary to discuss it further in subsequent figures unless explicitly stated to do so.
[0034] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of the parts themselves.
[0035] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "top", "bottom", and the like, can be used to describe the relative position of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, elements described as "above" or "below" other elements or features would then be oriented "below" or "above" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The devices can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatial relative terms used herein interpreted accordingly.
[0036] In addition, it should be noted that the use of "first", "second", and the like words of distinction do not connote any actual physical or logical relationship between the elements being described. Rather, such words are used merely to distinguish one element from another.
[0037] Please refer to Figures 1 to 3 The rotary kiln discharging device provided by the utility model has the beneficial effects that: compared with the prior art, the rotary kiln discharging device provided by the utility model draws materials through the discharging pipeline 10, and the rotary shaft 21 and the plurality of scraper plates 22 spirally arranged around the rotary shaft 21 are arranged in the discharging pipeline 10; when discharging, the rotary shaft 21 and the scraper plates 22 thereon are driven to rotate by the driving assembly 40, the inner wall of the discharging pipeline 10 is hung and swept, and the large sintered materials are broken by the rotating scraper plates 22, thereby effectively avoiding the blockage of the discharging pipeline.
[0038] It should be noted that the discharging pipeline 10 is inclined or vertically arranged.
[0039] The rotary kiln discharging device provided by the utility model has the beneficial effects that: compared with the prior art, the rotary kiln discharging device provided by the utility model draws materials through the discharging pipeline 10, and the rotary shaft 21 and the plurality of scraper plates 22 spirally arranged around the rotary shaft 21 are arranged in the discharging pipeline 10; when discharging, the rotary shaft 21 and the scraper plates 22 thereon are driven to rotate by the driving assembly 40, the inner wall of the discharging pipeline 10 is hung and swept, and the large sintered materials are broken by the rotating scraper plates 22, thereby effectively avoiding the blockage of the discharging pipeline.
[0040] As Figure 2 and Figure 3As shown, in a specific embodiment of the rotary kiln discharge device provided in this utility model, the length direction of the scraper 22 is perpendicular to the axis of the rotating shaft 21, so that the scraper 22 provides the maximum scraping radius.
[0041] like Figure 2 and Figure 3 As shown, in a specific embodiment of the rotary kiln discharge device provided in this utility model, the width direction of the scraper 22 is set at an angle to the axis of the rotating shaft 21.
[0042] Specifically, the upper spiral of the scraper 22 is inclined in the direction of rotation to apply a downward thrust to the material during rotation.
[0043] like Figure 2 and Figure 3 As shown, in a specific embodiment of the rotary kiln discharge device provided in this utility model, the projections of two adjacent scrapers 22 on the axis of the rotating shaft 21 overlap by a preset distance.
[0044] Specifically, the preset distance is a value greater than zero, so that there is no gap between the sweeping range of two adjacent scrapers 22.
[0045] like Figure 2 and Figure 3 As shown, in a specific embodiment of the rotary kiln discharge device provided in this utility model, a support 11 is provided inside the discharge pipe, and the rotating shaft 21 is rotatably engaged with the support 11.
[0046] Specifically, such as Figure 2 As shown, in a specific embodiment of the rotary kiln discharge device provided in this utility model, a first bearing 12 is also included. The first bearing 12 is disposed between the support 11 and the rotating shaft 21. The outer ring of the first bearing 12 is connected to the support 11, and the inner ring is connected to the rotating shaft 21 to reduce frictional resistance.
[0047] Furthermore, supports 11 are provided at both ends of the discharge pipe to further constrain the radial degree of freedom of the rotating shaft 21 and reduce the shaking of the rotating shaft 21.
[0048] like Figure 2 and Figure 3 As shown, in a specific embodiment of the rotary kiln discharge device provided in this utility model, an elastic support component is also included. The rotating shaft 21 is slidably engaged with the first bearing 12 and has a degree of freedom to slide relative to each other along the axial direction. The elastic support component is connected to the bracket 11 and the rotating shaft 21 to elastically support the rotating shaft 21.
[0049] It should be noted that the rotating shaft 21 will be elongated or shortened in the axial direction due to thermal expansion and contraction, so that the rotating shaft 21 is in sliding fit with the first bearing 12, and the elastic support assembly provides an axial support force to elastically support the rotating shaft 21, so that the rotating shaft 21 can be freely extended and retracted.
[0050] As shown in Figure 2 and Figure 3 In a specific embodiment of the rotary kiln discharging device provided by the embodiment of the present application, the elastic support assembly comprises a thrust bearing 31 and a support spring 32, the thrust bearing 31 is arranged on the upper side of the bracket 11 and connected with the rotating shaft 21, and the support spring 32 is arranged between the thrust bearing 31 and the bracket 11 and connected with the thrust bearing 31 and the bracket 11 at both ends.
[0051] Specifically, the tight ring of the thrust bearing 31 is in interference fit with the rotating shaft 21, the upper side of the thrust bearing 31 is provided with a blocking ring, the blocking ring is connected with the rotating shaft 21, and the spring is connected with the thrust bearing 31.
[0052] Based on the same inventive concept, as shown in Figure 4 The embodiment of the present application also provides a rotary kiln, which comprises a kiln body 50 and the above-mentioned rotary kiln discharging device, and the driving assembly 40 is connected with the kiln body 50, and the upper end of the discharging pipeline 10 is connected with the discharging port of the kiln body 50.
[0053] The rotary kiln provided by the present application has the following beneficial effects: compared with the prior art, the rotary kiln provided by the present application is provided with a discharging pipeline 10 connected with the discharging port of the kiln body 50, and a rotating shaft 21 and a plurality of scraper plates spirally arranged around the rotating shaft 21 are arranged in the discharging pipeline 10, in the discharging process, the rotating shaft 21 and the scraper plates 22 thereon are driven to rotate by the driving assembly 40, the inner wall of the discharging pipeline 10 is simultaneously swept, and large sintered materials are broken by the rotating scraper plates 22, thereby effectively avoiding the blockage of the discharging pipeline.
[0054] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A rotary kiln discharge apparatus, characterized by, The rotary kiln discharge device comprises: a discharge pipe, one end of which is connected with a discharge port of a kiln body of a rotary kiln, and the other end of which extends downward; a scraping assembly, which comprises a rotating shaft and a plurality of scrapers, the rotating shaft is in rotational cooperation with the discharge pipe, the plurality of scrapers are spirally and spacedly arranged around the rotating shaft and connected with the rotating shaft, and the plurality of scrapers are used for hanging and scraping the inner wall of the discharge pipe and crushing large pieces of sintered material; and a driving assembly, a power output end of which is connected with the rotating shaft and used for driving the rotating shaft to rotate.
2. A rotary kiln discharge apparatus as claimed in claim 1 wherein, The length direction of the scraper is perpendicular to the axis of the rotating shaft.
3. A rotary kiln discharge apparatus as claimed in claim 2, wherein, The width direction of the scraper is arranged at an angle with the axis of the rotating shaft.
4. The rotary kiln discharge apparatus of claim 2, wherein, The projections of two adjacent scrapers on the axis of the rotating shaft overlap by a preset distance.
5. The rotary kiln discharge apparatus of claim 1, wherein, The discharge pipe is provided with a support, and the rotating shaft is in rotational cooperation with the support.
6. A rotary kiln discharge apparatus as claimed in claim 5 wherein, The rotary kiln discharge device further comprises a first bearing, which is arranged between the support and the rotating shaft, an outer ring of the first bearing is connected with the support, and an inner ring of the first bearing is connected with the rotating shaft.
7. A rotary kiln discharge apparatus as claimed in claim 6 wherein, The rotary kiln discharge device further comprises an elastic supporting assembly, the rotating shaft is in sliding cooperation with the first bearing, has a freedom degree of relative sliding in the axial direction, and the elastic supporting assembly is connected with the support and the rotating shaft and used for elastically supporting the rotating shaft.
8. A rotary kiln discharge apparatus as claimed in claim 7, wherein, The elastic supporting assembly comprises: a thrust bearing, which is arranged on the upper side of the support and connected with the rotating shaft; and a supporting spring, which is arranged between the thrust bearing and the support and connected with the thrust bearing and the support at two ends.
9. A rotary kiln characterized by, The rotary kiln discharge device comprises a kiln body and the rotary kiln discharge device according to any one of claims 1-8, the driving assembly is connected with the kiln body, and one end of the discharge pipe is connected with a discharge port of the kiln body.