Material purification device for rotary kiln cooler
By designing a combination device of filter parts and ladder racks in the rotary kiln cooler, automatic crushing and filtration of large pieces of materials is achieved, solving the problem of manual crushing increasing workload, and improving equipment safety and production efficiency.
Patent Information
- Application Number
- CN202322381471.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-04
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-09-04
AI Technical Summary
When handling large pieces of materials and debris, existing rotary kiln coolers have the problem of manual crushing to increase workload, and automatic crushing is not effective enough, which can easily lead to equipment safety threats and production interruptions.
A cooling machine material purification device including a cylinder, a filter part and a ladder rack is designed. By setting up a discharge port, a filter part and a ladder rack on the cylinder, a large piece of material is guided to be broken by using the ladder rack, and the ladder rack is used to guide the crushing of large pieces of material and through The filter parts prevent crushed objects from damaging the discharge port, realize automatic crushing and material filtration, and reduce manual workload.
It effectively reduces the amount of manual crushing work, prevents damage to the unloading port structural parts, avoids material blockage and debris entering the subsequent production process, and improves equipment safety and production efficiency.
Smart Images
Figure CN222187746U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of rotary kiln sintering, and in particular to a material purification device for a rotary kiln cooler. Background Art
[0002] The rotary kiln for alumina clinker adopts a wet process. Qualified raw material slurry is atomized into the kiln by a high-pressure pump spray gun. The dried material passes through the preheating zone, decomposition zone, burning zone and cooling zone at the end of the kiln in turn. After being fired into qualified clinker, it enters the single-drum cooler or grate cooler for cooling and heat recovery. The particle size of the sintered clinker is 5mm to 30mm. Under abnormal conditions, especially when the kiln skin falls off, there are many large pieces, and the diameter of the large pieces can reach 300mm. If the ingredients are abnormal, "big eggs" may appear, and the diameter of "big eggs" can reach 1 meter. Large pieces and "big eggs" need to be discharged from the cooler, and then returned to the process after manual crushing, which increases the workload of personnel. The bent spray gun that is driven into the kiln, the iron parts such as the lifting plate that is burned and falls off in the kiln, and various debris generated during the maintenance process, all need to be discharged from the cooler to prevent them from entering the subsequent production process with the materials.
[0003] At present, there are two types of single-drum coolers at the tail end (material outlet end): shrinking and non-shrinking. The material outlet grate is set before the shrinking of the drum body and follows the drum body for one cycle. The advantage of the non-shrinking type is that large pieces of materials and debris are transferred out of the process through the open end, and only small pieces and debris enter the process through the grate, which does not affect subsequent production and equipment safety. The disadvantage is that all large pieces of materials (larger than the grate opening) are transferred out, and manual crushing is required, which increases the workload; the amount of cold air entering is relatively large.
[0004] The advantages of the shrinking type are that due to the ladder rack set inside, some large pieces can be raised and then freely dropped to achieve automatic crushing. After crushing, the materials enter the process, reducing the workload of manual labor; the amount of cold air entering is relatively small. The disadvantages are that large pieces of materials with slightly larger diameters are transferred out of the cooler through the ladder rack; debris is not easy to transfer out; the grate is often smashed and damaged, and various debris is easy to enter the subsequent production process. Even if there is no damage, some pipes, strips of iron and wood will fall into the production process through the grate mouth, threatening the subsequent production and equipment safety. Utility Model Content
[0005] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related art.
[0006] To this end, the present disclosure provides a rotary kiln cooler material purification device, including a cylinder, a filter, and a ladder rack, wherein the filter and the ladder rack are arranged in the cylinder, wherein:
[0007] A discharge port is provided on the peripheral side of the cylinder;
[0008] The ladder rack is connected to the inner wall of the cylinder, and the ladder rack is arranged adjacent to the filter element;
[0009] The filter cover is arranged on the discharge port, and the filter is provided with a filter port, and the filter port faces the extension direction of the cylinder.
[0010] In a feasible embodiment, the filter element includes a first plate body, a second plate body and a third plate body, the first plate body and the second plate body are relatively arranged on both sides of the third plate body, and the first plate body and the second plate body are outwardly extended relative to the central axis of the third plate body.
[0011] In a feasible implementation manner, the ladder rack has a material guiding surface, and the material guiding surface is arranged inclined relative to a surface of the filter element on which the filter port is formed.
[0012] In a feasible implementation manner, a plurality of the ladder racks are provided, and the plurality of the ladder racks are respectively provided on both sides of the filter element.
[0013] In a feasible implementation manner, the distance between the ladder rack on the side close to the cylinder discharge port and the filter element is set to 180 mm to 220 mm.
[0014] In a feasible implementation manner, a plurality of material guiding ports are arranged on the material guiding surface, and the size of the material guiding ports is smaller than or equal to the filter port.
[0015] In a feasible implementation manner, the object guiding surface and the surface of the filter element on which the filter port is provided form a first angle, and the first angle is set to be 45 degrees to 60 degrees.
[0016] In a feasible embodiment, a plurality of lifting plates are provided on one side of the filter element close to the discharge port of the cylinder, the plurality of lifting plates are connected to the inner wall of the cylinder, the lifting plates have a lifting surface, the lifting plates and the surface of the filter element on which the filter port is provided form a second angle, and the extension direction of the lifting plates is opposite to that of the ladder frame.
[0017] In a feasible implementation manner, the second angle is 50 degrees to 65 degrees.
[0018] In a feasible implementation manner, it further includes a material guide rod, which is connected to the inner wall of the cylinder and is used to guide the material to move toward the filter element.
[0019] Compared with the prior art, the present disclosure includes at least the following beneficial effects: the present disclosure opens a discharge port on the cylinder, and uses a filter element to prevent large pieces of material that fall freely under the action of the ladder frame from damaging the structural parts at the discharge port, and the filter element can further filter the material to avoid blockage caused by the single-layer discharge grate when the cylinder rotates. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0021] In order to more clearly illustrate the embodiments of the present invention 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0022] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the exemplary embodiments below. The accompanying drawings are only for the purpose of illustrating exemplary embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:
[0023] Figure 1 It is a schematic diagram of the structure inside the cylinder disclosed in the present invention;
[0024] Figure 2 It is a schematic diagram of the structure of the filter element, the material lifting plate, the ladder frame and the material guide rod disclosed in the present invention;
[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the filter element disclosed in the present invention.
[0026] in, Figures 1 to 3 The corresponding relationship between the figure numbers and the component names is: 101-first angle; 102-second angle; 1-cylinder; 11-discharge port; 2-filter element; 21-filter port; 3-ladder frame; 31-guiding surface; 311-material guiding port; 4-lifting plate; 5-material guiding rod; 103-first plate body; 104-second plate body; 105-third plate body. DETAILED DESCRIPTION
[0027] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.
[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.
[0029] The rotary kiln cooler material purification device is described in detail below through specific embodiments:
[0030] Reference Figures 1 to 3As shown, the present disclosure provides a rotary kiln cooler material purification device, including a cylinder 1, a filter element 2, and a ladder frame 3. The filter element 2 and the ladder frame 3 are arranged in the cylinder 1, and a discharge port 11 is opened on the peripheral side of the cylinder 1; the ladder frame 3 is connected to the inner wall of the cylinder 1, and the ladder frame 3 is arranged adjacent to the filter element 2; the filter element 2 is covered on the discharge port 11, and the filter element 2 is provided with a filter port 21, and the filter port 21 is toward the extension direction of the cylinder 1.
[0031] The barrel 1 disclosed in the present invention is a rotary kiln single-drum cooler tail barrel that is configured as a constricted type. It is understandable that the barrel 1 disclosed in the present invention is a hollow cylinder and has an incoming material side and a discharging material side, wherein the incoming material side is the side away from the constriction, and the discharging material side is the side close to the constriction. In the technical scheme disclosed in the present invention, a plurality of ladder racks 3 may be provided on the inner side of the constriction end and / or other parts of the inner wall of the barrel 1, and the embodiment disclosed in the present invention has a ladder rack 3 provided on the inner side of the constriction end, i.e., on the side of the filter element 2 close to the discharging side. The main function of the ladder rack 3 is to guide large pieces of material to be thrown up to a certain height and then fall down to achieve the purpose of crushing. The barrel 1 disclosed in the present invention is also provided with a discharge port 11, which enables the material to be discharged from the outside of the barrel 1
[0032] In some embodiments, Figure 1 As shown, the opening size of the discharge port 11 is 150×200mm, which is arranged in 2 rows along a circle of the cylinder 1. It is understandable that because the ladder rack 3 lifts some large pieces of material and then lets them fall freely to achieve automatic crushing, the structural parts at the discharge port 11, such as the discharge port grate, are often broken. For this reason, in the technical solution disclosed in the present invention, a filter element 2 is provided on the discharge port 11, and the filter element 2 cover is provided on the discharge port 11 to be used as an inner grate. When the ladder rack 3 is used to lift the material and let it fall freely, it first contacts the filter element 2. It is not easy for heavy objects and materials to break the double-layer grate at the same time, resulting in large pieces of debris or large pieces of material entering the process. At the same time, a filter port 21 is provided on the filter element 2, and the fragments of large materials crushed by the ladder frame 3 can enter the process from the filter port 21. The specific size is set according to actual conditions. For example, the filter port 21 on the incoming material side of the filter element 2 is 50×80mm, and the filter port 21 on the tail discharge material side is 100×300mm.
[0033] In some embodiments, the filter element 2 includes a first plate body 103, a second plate body 104 and a third plate body 105, the first plate body 103 and the second plate body 104 are relatively arranged on both sides of the third plate body 105, and the first plate body 103 and the second plate body 104 are outwardly extended relative to the central axis of the third plate body 105.
[0034] like Figure 3As shown, the filter element 2 of the present disclosure forms a U-shaped folded plate structure through the first plate body 103, the second plate body 104 and the second plate body 104, and the side section is trapezoidal, and the filter port 21 is opened on the first plate body 103 and the second plate body 104. This setting method can better realize the protection of the double-layer grate, that is, the grate of the discharge port 11 and the filter element 2. At the same time, the trapezoidal setting can provide a better contact angle between the filter port 21 and the material, so that the material that can pass through the filter port 21 can enter the process more easily. In some embodiments, the filter port 21 array arranged on the first plate body 103, that is, the incoming material side, is arranged in a mesh shape, with an opening size of 50×80mm.
[0035] In some embodiments, the swing ladder 3 has a guide surface 31, and the guide surface 31 is arranged relatively inclined with the surface of the filter element 2 with the filter port 21. In order to achieve a better effect of raising the material, the guide surface 31 and the surface of the filter element 2 with the filter port 21 form a first angle 101, and the first angle 101 is set to 45 degrees to 60 degrees. When the angle of the first angle 101 is less than 45 degrees, the height of the material is too small to achieve the crushing of large pieces of material. When the first angle 101 is greater than 60 degrees, the height of the material is too high, and the material is easy to flow back, resulting in failure to achieve crushing. The present disclosure specifically sets the angle of the first angle 101 to 60 degrees.
[0036] In some embodiments, a plurality of ladder racks 3 are provided, and the plurality of ladder racks 3 are respectively provided on both sides of the filter element 2, and the distance between the ladder rack 3 on the side close to the discharge port of the cylinder 1 and the filter element 2 is set to 180 mm to 220 mm. This allows some large pieces of material to enter the process through the filter port 21 by rotating the cylinder 1 at this distance. The ladder rack 3 on the incoming material side of the filter element 2 can be selected to be close to the filter element or have a certain gap. The embodiment of the present disclosure selects the ladder rack 3 on this side to be set close to the filter element 2 to drive the material on the incoming material side to enter the process through the filter port 21 faster.
[0037] In some embodiments, a plurality of material guiding ports 311 are disposed on the material guiding surface 31 , and the size of the material guiding port 311 is smaller than or equal to the filter port 21 .
[0038] The ladder rack 3 of the present disclosure can be set as a rhombus, a cube, a cuboid, etc. The present disclosure specifically selects a cuboid, and the surface with a larger area is the guide surface 31, and its size can be set to 1000mm in length×350mm in height, and can be welded from steel parts. The guide port 311 can penetrate the ladder rack 3 from the guide surface 31 so that the material can be screened out of the ladder rack 3 during the process of throwing the material. The size of the guide port 311 should be less than or equal to the filter port 21, so that the material screened from the ladder rack 3 can enter the filter port 21. The present disclosure specifically sets the guide port 311 to 80×100mm.
[0039] In some embodiments, a plurality of lifting plates 4 are provided on one side of the filter element 2 close to the discharge port of the cylinder 1, and the plurality of lifting plates 4 are connected to the inner wall of the cylinder 1. The lifting plates 4 have a lifting surface, and the lifting plates 4 and the surface of the filter element 2 having the filter port 21 form a second angle 102, and the extension direction of the lifting plates 4 is opposite to the ladder frame 3.
[0040] The specific number of the lifting plates 4 disclosed in the present invention can be set to 3 to 5, and they are arranged along the circumference of the cylinder 1. In this embodiment, the lifting plates 4 are made of steel plates and are adjacent to the filter element 2. The large pieces of kiln skin entering with the material enter the cylinder necking area under the action of the ladder rack 3. Under the action of the lifting plates 4, they are raised and dropped. After automatic crushing, they enter the process through the grate opening (100×300mm) on the tail side of the machine. The second angle 102 is 50 to 65 degrees. When the angle of the second angle 102 is less than 45 degrees, the height of the material is too small to achieve the crushing of large pieces of material. When the second angle 102 is greater than 65 degrees, the height of the material is too high, and the material is easy to flow back, resulting in failure to achieve crushing. The present disclosure specifically sets the angle of the second angle 102 to 60 degrees.
[0041] In some embodiments, a material guide rod 5 is further disposed inside the barrel 1 of the present disclosure. The material guide rod 5 is connected to the inner wall of the barrel 1 , and the material guide rod 5 is used to guide the material to move toward the filter element 2 .
[0042] When in use, normal materials enter the process through the filter port 21 on the first plate 103 on the incoming material side. The large pieces of kiln skin that enter with the materials, under the action of the ladder rack 3 on the incoming material side, pass over the filter element 2 and enter the shrinkage area of the cylinder body. They are raised and dropped under the action of the lifting plate 21. After being automatically broken, they enter the process through the filter port 21 on the second plate 104 on the discharging side. Kiln skins with a diameter less than 300 mm can be automatically broken under the action of the lifting plate 4. Larger kiln skins (such as large eggs) are thrown out of the process through the ladder rack 3 at the shrinkage, which significantly reduces the manual workload; combustible debris (such as gloves left over from maintenance, packaging bags, wood, etc.) stay and burn at the filter port 21 of the filter element 2 on the incoming material side. Incombustible objects, such as spray gun rods and iron parts, are thrown out of the process through the ladder racks 3 on both sides, or stay at the filter port on the incoming material side and are taken out when the kiln is stopped for maintenance.
[0043] In the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.
[0044] In the description of the present disclosure, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present disclosure.
[0045] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0046] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.
Claims
1. A rotary kiln cooler material purification device, It is characterized in that It comprises a cylinder, a filter, and a ladder frame, wherein the filter and the ladder frame are arranged in the cylinder, wherein: A discharge port is provided on the peripheral side of the cylinder; The ladder rack is connected to the inner wall of the cylinder, and the ladder rack is arranged adjacent to the filter element; The filter cover is arranged on the discharge port, and the filter is provided with a filter port, and the filter port faces the extension direction of the cylinder.
2. The rotary kiln cooler material purification device according to claim 1, It is characterized in that The filter element includes a first plate body, a second plate body and a third plate body, wherein the first plate body and the second plate body are arranged on both sides of the third plate body, and the first plate body and the second plate body are extended outward relative to the central axis of the third plate body.
3. The rotary kiln cooler material purification device according to claim 1, It is characterized in that The ladder frame has a guide surface, and the guide surface is arranged obliquely relative to the surface of the filter element on which the filter port is opened.
4. The rotary kiln cooler material purification device according to claim 1, It is characterized in that A plurality of the ladder racks are provided, and the plurality of the ladder racks are respectively arranged on both sides of the filter element.
5. The rotary kiln cooler material purification device according to claim 1, It is characterized in that The distance between the ladder frame and the filter element close to the discharge port of the cylinder is set to 180 mm to 220 mm.
6. The rotary kiln cooler material purification device according to claim 3, It is characterized in that The guide surface is provided with a plurality of material guide ports, and the size of the material guide ports is smaller than or equal to the filter port.
7. The rotary kiln cooler material purification device according to claim 3, It is characterized in that The object guiding surface and the surface of the filter element on which the filter port is formed form a first angle, and the first angle is set to 45 degrees to 60 degrees.
8. The rotary kiln cooler material purification device according to claim 1, It is characterized in that A plurality of lifting plates are arranged on one side of the filter element close to the discharge port of the cylinder, the plurality of lifting plates are connected to the inner wall of the cylinder, the lifting plates have a lifting surface, the lifting plates and the surface of the filter element on which the filter port is formed form a second angle, and the extension direction of the lifting plates is opposite to that of the ladder frame.
9. The rotary kiln cooler material purification device according to claim 8, It is characterized in that The second angle is 50 degrees to 65 degrees.
10. The rotary kiln cooler material purification device according to claim 1, It is characterized in that It also includes a material guide rod, which is connected to the inner wall of the cylinder and is used to guide the material to move toward the filter element.