Detachable kiln tail guard plate and rotary kiln applying same

Abstract

The utility model belongs to the technical field of cement kiln rotary kiln fitting application, and particularly discloses a detachable kiln tail guard plate and a rotary kiln applying the same, which comprise a guard plate body, a conical hollow transition part, a limiting groove, a plurality of screw grooves, a hollow sealing part, a countersunk screw hole, a bolt and the like. The utility model has the beneficial effects that: 1, the technical problems existing in the mounting and dismounting structure in the background technology are solved through the structural design of the limiting groove, the plurality of screw grooves, the hollow sealing part, the countersunk head screw hole and the bolt, and the sealing structure is not contacted with materials after being matched and assembled and is not positioned in an internal high-temperature operation environment, so that the overall durability is effectively prolonged, and the service life of the sealing structure is prolonged; in addition, disassembly and use are convenient, practicability is high, and popularization is facilitated; due to the L-shaped fixing plates, the screw holes, the locking bolts, the arc-shaped plates, the circular limiting sleeves and the abrasion-resistant heat insulation layer, the protection plate body and the kiln tail of the rotary kiln can be firmly assembled and conveniently disassembled.

Description

Technical Field

[0001] The utility model belongs to the technical field of application of cement rotary kiln accessories, in particular to a detachable kiln tail guard plate and a rotary kiln using the same. Background Art

[0002] Rotary kilns can be divided into cement kilns, metallurgical chemical kilns and lime kilns according to the materials they process.

[0003] Cement kilns are mainly used to calcine cement clinker, and are divided into two categories: dry process cement kilns and wet process cement kilns; metallurgical and chemical kilns are mainly used in the metallurgical industry for magnetization roasting of lean iron ore in steel mills, oxidation roasting of chromium and nickel iron ores, roasting of high-aluminum bauxite in refractory plants, roasting of clinker and aluminum hydroxide in aluminum plants, and roasting of chromium ore sand and chromium ore powder in chemical plants; lime kilns (i.e., active lime kilns) are used to roast active lime and light-burned dolomite for use in steel mills and ferroalloy plants.

[0004] The kiln tail guard plate is installed at the tail of the rotary kiln body to achieve sealing and leakage prevention of the calcined material.

[0005] After searching: Application No. / Patent No. 202222183081.6, a rotary kiln tail guard plate is disclosed, including a guard plate body, a seal and a limit assembly; the guard plate body is clamped at the end of the rotary kiln tail, and the guard plate body is in contact with the castable at the end of the rotary kiln tail; the seal is detachably installed on the guard plate body; the limit assembly is arranged on the guard plate body, and the guard plate body is locked with the outer surface of the rotary kiln tail through the limit assembly; its technical points are that it can facilitate the staff to install the guard plate and the seal, and the guard plate is provided with a sealing assembly, so that the sealing performance between the guard plate and the seal is greatly improved, the use effect is relatively good, and the installation stability can be improved, and the extrusion fixing method is adopted, which can reduce the influence of temperature deformation on the kiln tail guard plate installation structure, can facilitate the installation and disassembly of the kiln tail guard plate, can facilitate the staff to maintain the kiln tail guard plate, has good use effect, and has good use prospects.

[0006] After analysis, the problems are: installation and disassembly are achieved through installation ports, through ports, clamping blocks, limit blocks, limit grooves, sealing rings, annular sealing grooves and annular sealing strips. Because the use scenario is a high-temperature environment, and the connection surface and assembly surface will be in contact with the material, the structure for installation and disassembly after assembly and use will be subject to large wear and tear, which will directly affect installation and disassembly after long-term use.

[0007] Therefore, based on the above problems, the utility model provides a rotary kiln with a detachable kiln tail guard plate and the use thereof. Utility Model Content

[0008] Purpose of the utility model: The purpose of the utility model is to provide a rotary kiln with a detachable kiln tail guard plate and its application, to solve the technical problems existing in the use of the rotary kiln tail guard plate in the background technology, and to achieve safe and convenient installation and disassembly between the hollow sealing part and the conical hollow transition part.

[0009] Technical solution: The first aspect of the utility model provides a rotary kiln tail guard plate, including a guard plate body and a conical hollow transition portion, a limiting groove is provided in one side of the conical hollow transition portion, and a plurality of screw grooves are provided in one side of the conical hollow transition portion and located in the limiting groove, a hollow sealing portion is provided on one side of the conical hollow transition portion through the limiting groove, and a countersunk screw hole used in conjunction with the plurality of screw grooves is provided in the outer layer of the hollow sealing portion, and the hollow sealing portion and the conical hollow transition portion are fixed by bolts through the countersunk screw holes and the screw grooves.

[0010] In the technical solution of the present invention, the limiting groove and the hollow sealing portion are configured as matching circular structures or polygonal structures.

[0011] In the technical solution, the detachable kiln tail guard plate also includes a sealing ring which is sleeved on the hollow sealing portion and fits tightly with the inner wall of the limiting groove.

[0012] In the technical solution, the removable kiln tail guard plate also includes a sealing rubber layer coated on the limiting groove, the hollow sealing part, and the sealing ring connection surface.

[0013] In the present technical solution, the removable kiln tail guard plate also includes a plurality of L-shaped fixing plates arranged on the outer wall of one end face of the guard plate body, and screw holes respectively arranged in the end face of one end of the L-shaped fixing plate, and locking bolts respectively connected to the L-shaped fixed plate through the screw holes, and arc plates respectively used in conjunction with the locking bolts, and circular limit sleeves respectively arranged on the outer layer of the symmetrical center line of the arc plate, and wear-resistant heat-insulating layers respectively arranged on the inner surface of the arc plate.

[0014] The second aspect of the present invention provides a rotary kiln, wherein the kiln tail of the rotary kiln is equipped with the detachable kiln tail guard plate.

[0015] Compared with the prior art, the beneficial effects of the utility model of a detachable kiln tail guard plate and a rotary kiln using the same are: 1. The technical problems existing in the installation and disassembly structure in the background technology are replaced by the limiting groove, several screw grooves, hollow sealing parts, countersunk screw holes and bolt structure design. After matching and assembly, it does not contact with the material, and is not located in the internal high-temperature working environment, effectively extending the overall durability. In addition, it is convenient to disassemble and use, has strong practicality and is conducive to promotion; 2. Several L-shaped fixing plates, screw holes, locking bolts, arc plates, circular limiting sleeves and wear-resistant insulation layers can firmly assemble and conveniently disassemble the guard plate body and the rotary kiln tail. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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. 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 these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the main view split structure of a detachable kiln tail guard plate of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of a detachable kiln tail guard plate after assembly of the utility model;

[0019] Figure 3 This is a side view structural diagram of a locking bolt, an arc-shaped plate, and a circular limiting sleeve for disassembling a kiln tail guard plate of the utility model;

[0020] Among them, the numbers in the figure are as follows: 100-guard plate body, 101-conical hollow transition part, 102-limiting groove, 103-screw groove, 104-hollow sealing part, 105-countersunk screw hole, 106-sealing ring, 107-bolt, 108-sealing glue layer, 109-L-shaped fixing plate, 110-screw hole, 111-locking bolt, 112-arc plate, 113-circular limiting sleeve, 114 wear-resistant heat insulation layer. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle", "inside", "top", "bottom end", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, for example, they can mean fixed connection, detachable connection, or integral connection; they can mean mechanical connection or electrical connection; they can mean direct connection, indirect connection through an intermediate medium, or internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example 1

[0024] like Figure 1 and Figure 2 The rotary kiln tail guard plate shown in the figure comprises a guard plate body 100 and a conical hollow transition portion 101.

[0025] A limiting groove 102 is provided on one side of the conical hollow transition portion 101.

[0026] One side of the conical hollow transition portion 101 is provided with a plurality of screw grooves 103 in the limiting groove 102.

[0027] One side of the conical hollow transition portion 101 is provided with a hollow sealing portion 104 through a limiting groove 102.

[0028] The outer layer of the hollow sealing portion 104 is provided with countersunk screw holes 105 used in conjunction with the plurality of screw grooves 103.

[0029] The hollow sealing portion 104 and the conical hollow transition portion 101 are fixed together by bolts 107 through countersunk screw holes 105 and screw grooves 103;

[0030] The bolts 107 are high temperature resistant bolts.

[0031] In addition, the limiting groove 102 and the hollow sealing portion 104 are preferably configured as matching circular structures or polygonal structures.

[0032] Example 2

[0033] On the basis of the first embodiment, the kiln tail guard plate can be removed and further comprises a sealing ring 106 which is sleeved on the hollow sealing portion 104 and fits tightly with the inner wall of the limiting groove 102;

[0034] The sealing ring 106 is a high temperature resistant sealing ring, which realizes sealing between the hollow sealing portion 104 and the conical hollow transition portion 101 after assembly to prevent leakage.

[0035] Example 3

[0036] On the basis of the first or second embodiment, the kiln tail guard plate can be disassembled, and further comprises a sealing rubber layer 108 coated on the connection surface of the limiting groove 102, the hollow sealing portion 104, and the sealing ring 106;

[0037] The sealant layer 108 is a high temperature resistant sealant, which can achieve sealing protection of the connection surfaces of the limiting groove 102, the hollow sealing portion 104, and the sealing ring 106 to prevent leakage.

[0038] Example 4

[0039] On the basis of the first, second or third embodiments, the kiln tail guard plate can be disassembled, and further includes a plurality of L-shaped fixing plates 109 arranged on the outer wall of the end surface of one end of the guard plate body 100, and screw holes 110 respectively arranged in the end surface of one end of the L-shaped fixing plate 109, and locking bolts 111 respectively connected to the L-shaped fixing plate 109 through the screw holes 110, and arc-shaped plates 112 respectively used in conjunction with the locking bolts 111, and circular limiting sleeves 113 respectively arranged on the outer layer of the symmetrical center line of the arc-shaped plate 112, and wear-resistant heat-insulating layers 114 respectively arranged on the inner surface of the arc-shaped plate 112, the wear-resistant heat-insulating layer 114 is isolated from heat transfer, and the arc-shaped plate 112 and the circular limiting sleeve 113 are thermally insulated;

[0040] Among them, the wear-resistant heat-insulating layer 114 is made of flexible material and is attached to the surface of the arc plate 112. After the guard plate body 100 and the rotary kiln tail (not marked in the figure, which does not affect the disclosure of the technical solution of this application) are assembled, the locking bolt 111 is rotated to lock the wear-resistant heat-insulating layer 114 on one side of the arc plate 112 against the connecting surface between the guard plate body 100 and the rotary kiln tail.

[0041] The rotary kiln adopting the structure of the utility model has a detachable kiln tail guard plate installed at the kiln tail of the rotary kiln.

[0042] The structural principle or working principle of the removable kiln tail guard plate of this structure:

[0043] (1) First, fit the sealing ring 106 onto the surface of the hollow sealing portion 104;

[0044] (2) Insert the hollow sealing portion 104 into the limiting groove 102, ensuring that the countersunk screw hole 105 and the screw groove 103 are aligned one by one;

[0045] (3) Finally, the hollow sealing portion 104 is fixed to the conical hollow transition portion 101 by means of bolts 107 through the countersunk screw holes 105 and the screw grooves 103. At this time, a sealing adhesive layer 108 is applied to the connection surfaces of the limiting groove 102, the hollow sealing portion 104 and the sealing ring 106.

[0046] In addition, after the guard plate body 100 is assembled with the rotary kiln tail, the locking bolts 111 are rotated to lock and secure the wear-resistant insulation layer 114 on one side of the arc plate 112 against the connecting surface between the guard plate body 100 and the rotary kiln tail.

[0047] It should be noted that, in this document, terms such as "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A detachable kiln tail guard plate, comprising a guard plate body (100) and a conical hollow transition portion (101), characterized in that: A limiting groove (102) is provided in one surface of the conical hollow transition portion (101). One side of the conical hollow transition portion (101) is provided with a plurality of screw grooves (103) located in the limiting groove (102). A hollow sealing portion (104) is provided on one side of the conical hollow transition portion (101) through a limiting groove (102). The outer layer of the hollow sealing portion (104) is provided with countersunk screw holes (105) used in conjunction with a plurality of screw grooves (103). The hollow sealing portion (104) and the conical hollow transition portion (101) are fixed together by bolts (107) through countersunk screw holes (105) and screw grooves (103).

2. The detachable kiln tail guard plate according to claim 1, characterized in that: The limiting groove (102) and the hollow sealing portion (104) are configured as matching circular structures or polygonal structures.

3. The detachable kiln tail guard plate according to claim 1 or 2, characterized in that: The detachable kiln tail guard plate further comprises a sealing ring (106) which is sleeved on the hollow sealing portion (104) and tightly fits against the inner wall of the limiting groove (102).

4. The detachable kiln tail guard plate according to claim 3, characterized in that: The removable kiln tail guard plate further comprises a sealing rubber layer (108) coated on the connection surfaces of the limiting groove (102), the hollow sealing portion (104), and the sealing ring (106).

5. The detachable kiln tail guard plate according to claim 4, characterized in that: The removable kiln tail guard plate further comprises a plurality of L-shaped fixing plates (109) arranged on the outer wall of one end face of the guard plate body (100), screw holes (110) respectively arranged in one end face of the L-shaped fixing plates (109), locking bolts (111) respectively connected to the L-shaped fixing plates (109) through the screw holes (110), arc-shaped plates (112) respectively used in conjunction with the locking bolts (111), circular limiting sleeves (113) respectively arranged on the outer layer of the symmetrical center line of the arc-shaped plates (112), and wear-resistant heat-insulating layers (114) respectively arranged on the inner surface of the arc-shaped plates (112).

6. Rotary kiln, characterized by: The kiln tail of the rotary kiln is equipped with the detachable kiln tail guard plate according to any one of claims 1 to 5.

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