Blanking microcrystal pipe of cement preheater

Abstract

The utility model belongs to the technical field of cement preheater accessory application, and particularly discloses a blanking microcrystal pipe of a cement preheater. Comprising a circular blanking shell, an upper fixing plate, an upper fixing plate screw hole, a lower fixing plate, a lower fixing plate screw hole, a circular hollow positioning plate, a plurality of groups of first countersunk screw holes, a tail lining microcrystal pipe, a plurality of middle lining microcrystal pipes, a head lining microcrystal pipe, a plurality of groups of first screw grooves, first bolts and the like. The utility model has the beneficial effects that: 1, the microcrystal tube liner adopts a multi-section movable design, so that the microcrystal tube liner is convenient to assemble or disassemble and maintain; 2, the tail lining microcrystal tube, the plurality of middle lining microcrystal tubes and the head lining microcrystal tube are respectively formed by firing a mixture of silicon carbide and silicon nitride, and are durable, long in service life and outstanding in anti-skinning and anti-blocking effects; and 3, during assembly, a hollow sealing convex ring of the upper fixing plate and a hollow sealing convex ring of the lower fixing plate realize tight assembly between the circular blanking shell and the cyclone cylinder respectively, and the leakage phenomenon is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of application of cement preheater accessories, in particular to a cement preheater blanking microcrystalline tube. Background Art

[0002] The cyclone preheater system is mainly composed of a rotary kiln and a cyclone behind the kiln. The working process of the system is completed by the cooperation of multiple stages of preheaters. The preheating method is to heat the raw materials in the form of blasting.

[0003] The discharge pipe is used as a connecting component of the multi-stage cyclone and is a component for conveying raw materials.

[0004] At present, the lining of the discharge pipe of the cement preheater is mostly made of wear-resistant castables. The wall thickness of the wear-resistant castable is 100-150mm, the density is small, the surface is rough, and it is easy to crust, hang materials and block materials. At the same time, it is not convenient to dismantle and maintain, and can only be replaced as a whole, which increases the cost of use.

[0005] Therefore, based on the above problems, the utility model provides a cement preheater blanking microcrystalline tube. Utility Model Content

[0006] Purpose of the utility model: The purpose of the utility model is to provide a cement preheater discharge microcrystalline tube to solve the technical problems existing in the use of the cement preheater discharge tube in the background technology.

[0007] Technical solution: The utility model provides a cement preheater blanking microcrystalline tube, comprising a circular blanking shell, an upper fixing plate, an upper fixing plate screw hole, a lower fixing plate and a lower fixing plate screw hole. A circular hollow positioning plate is provided on the inner wall of one end face of the circular blanking shell, and several groups of first countersunk screw holes are provided in the other end of the circular blanking shell. The lower inner wall of the circular blanking shell is provided with a tail lining microcrystalline tube through the circular hollow positioning plate, the middle inner wall of the circular blanking shell and the end face of the tail lining microcrystalline tube are sequentially provided with several middle lining microcrystalline tubes, the upper inner wall of the circular blanking shell and the end face of the middle lining microcrystalline tube are provided with a head lining microcrystalline tube, and several groups of first screw grooves are provided in the outer wall of the head lining microcrystalline tube, and the circular blanking shell and the head lining microcrystalline tube are fixed by first countersunk screw holes and first screw grooves using first bolts.

[0008] In the technical solution of the present invention, the end face of the circular hollow positioning plate is flush with the connecting face of the circular blanking shell, the end face of the head lining microcrystalline tube is flush with the end face of the circular blanking shell, and the height dimensions of the tail lining microcrystalline tube, the middle lining microcrystalline tube, and the head lining microcrystalline tube are the same or different.

[0009] In the technical solution, the cement preheater discharge microcrystalline tube also includes a group of fixed ear plates arranged on the outer wall of the circular discharge shell, and an upper fixed plate hollow sealing convex ring and a lower fixed plate hollow sealing convex ring respectively arranged on the end faces of the upper fixed plate and the lower fixed plate.

[0010] In the technical solution of the present invention, the cement preheater discharge microcrystalline tube also includes a group of second countersunk screw holes arranged on the outer wall of the lower part of the circular discharge shell, and several groups of third countersunk screw holes arranged on the outer wall of the middle part of the circular discharge shell, and several groups of second screw grooves and several groups of third screw grooves respectively arranged in the outer walls of the tail lining microcrystalline tube and the middle lining microcrystalline tube, and a second bolt for fixing the tail lining microcrystalline tube and the circular discharge shell through the second countersunk screw holes and the second screw grooves, and a third bolt for fixing the middle lining microcrystalline tube and the circular discharge shell through the third countersunk screw holes and the third screw grooves.

[0011] In the technical solution of the present invention, the inner diameters of the tail inner lining microcrystalline tube, the plurality of middle inner lining microcrystalline tubes, and the head inner lining microcrystalline tube are the same.

[0012] In the technical solution of the present invention, the cement preheater unloading microcrystalline tube also includes a plurality of tail lining microcrystalline tube grooves and a plurality of head lining microcrystalline tube protrusions respectively arranged in the end faces of the opposite surfaces of the tail lining microcrystalline tube and the head lining microcrystalline tube, and a plurality of middle lining microcrystalline tube protrusions and a plurality of middle lining microcrystalline tube grooves respectively arranged in the end faces of both ends of the middle lining microcrystalline tube.

[0013] Compared with the prior art, the beneficial effects of the cement preheater feeding microcrystalline tube of the utility model are: 1. The lining of the microcrystalline tube is a multi-stage movable design, which is convenient for assembly or disassembly; 2. The tail lining microcrystalline tube, several middle lining microcrystalline tubes, and head lining microcrystalline tube are respectively fired with a mixture of silicon carbide and silicon nitride, and the firing temperature is 1300℃-1600℃. They are durable and have a long service life. At the same time, they have outstanding anti-scaling and anti-clogging effects; 3. During assembly, the hollow sealing convex ring of the upper fixed plate and the hollow sealing convex ring of the lower fixed plate realize the tight assembly between the circular feeding shell and the cyclone barrel to prevent leakage; 4. The tail lining microcrystalline tube groove, the head lining microcrystalline tube protrusion, the middle lining microcrystalline tube protrusion, and the middle lining microcrystalline tube groove realize the stability of the connection surfaces of the tail lining microcrystalline tube, several middle lining microcrystalline tubes, and head lining microcrystalline tube after assembly to prevent rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the main structure of a cement preheater feeding microcrystalline tube of the utility model;

[0016] Figure 2 This is a top view structural diagram of a cement preheater feeding microcrystalline tube according to the present invention;

[0017] Figure 3 This is a structural schematic diagram of another embodiment of a cement preheater feeding microcrystalline tube according to the present invention;

[0018] Figure 4 This is a structural schematic diagram of another second embodiment of a cement preheater feeding microcrystalline tube according to the present invention;

[0019] Among them, the numbers in the figure are as follows: 100-circular blanking shell, 101-upper fixing plate, 102-upper fixing plate screw hole, 103-lower fixing plate, 104-lower fixing plate screw hole, 105-fixing ear plate, 106-upper fixing plate hollow sealing convex ring, 107-lower fixing plate hollow sealing convex ring, 108-circular hollow positioning plate, 109-tail lining microcrystalline tube, 110-middle lining microcrystalline tube, 111-head lining microcrystalline tube Crystal tube, 112-first screw groove, 113-first countersunk screw hole, 114-first bolt, 115-second countersunk screw hole, 116-third countersunk screw hole, 117-second bolt, 118-third bolt, 119-second screw, 120-third screw groove, 121-tail lining microcrystalline tube slot, 122-head lining microcrystalline tube protrusion, 123-middle lining microcrystalline tube protrusion, 124-middle lining microcrystalline tube slot. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] Example 1

[0023] like Figure 1 and Figure 2 The cement preheater blanking microcrystalline tube shown in the figure includes a circular blanking shell 100, an upper fixing plate 101, upper fixing plate screw holes 102, a lower fixing plate 103 and lower fixing plate screw holes 104.

[0024] A circular hollow positioning plate 108 is provided on the inner wall of one end surface of the circular blanking shell 100.

[0025] The other end of the circular blanking shell 100 is provided with a plurality of first countersunk screw holes 113.

[0026] The lower inner wall of the circular blanking shell 100 is provided with a tail lining microcrystalline tube 109 through a circular hollow positioning plate 108.

[0027] The inner wall of the circular blanking shell 100 and the end surface of the tail lining microcrystalline tube 109 are sequentially provided with a plurality of middle lining microcrystalline tubes 110.

[0028] The upper inner wall of the circular blanking shell 100 and the end surface of the central lining microcrystalline tube 110 are provided with a head lining microcrystalline tube 111.

[0029] The outer wall of the microcrystalline tube 111 in the head is provided with a plurality of first screw grooves 112.

[0030] The circular blanking shell 100 and the microcrystalline tube 111 of the head lining are fixed together by the first countersunk screw hole 113 and the first screw groove 112 using the first bolt 114;

[0031] Among them, the contact surfaces of the tail lining microcrystalline tube 109, the middle lining microcrystalline tube 110, and the head lining microcrystalline tube 111 are tightly fitted, and the outer walls of the tail lining microcrystalline tube 109, the middle lining microcrystalline tube 110, and the head lining microcrystalline tube 111 are tightly fitted with the inner wall of the circular blanking shell 100.

[0032] In addition, preferably, the end surface of the circular hollow positioning plate 108 is flush with the connection surface of the circular blanking shell 100, the end surface of the head lining microcrystalline tube 111 is flush with the end surface of the circular blanking shell 100, and the height dimensions of the tail lining microcrystalline tube 109, the middle lining microcrystalline tube 110, and the head lining microcrystalline tube 111 are the same or different;

[0033] Among them, the tail lining microcrystalline tube 109, several middle lining microcrystalline tubes 110, and the head lining microcrystalline tube 111 are respectively made of a mixture of silicon carbide and silicon nitride, and the firing temperature is between 1300℃ and 1600℃. They have the characteristics of high temperature resistance, impact resistance, wear resistance, corrosion resistance, and small expansion coefficient. They solve the technical problem of the traditional discharge pipe lining reacting with the cement mix to form a crust under high temperature conditions. At the same time, the tail lining microcrystalline tube 109, the middle lining microcrystalline tube 110, and the head lining microcrystalline tube 111 (microcrystalline tube) are in a smooth state with the upper and lower flanges connecting the discharge pipe, so that the entire lining surface is smooth and there is no material hanging.

[0034] Example 2

[0035] On the basis of Example 1, the cement preheater discharge microcrystalline tube further includes a group of fixed ear plates 105 arranged on the outer wall of the circular discharge shell 100, and an upper fixed plate hollow sealing convex ring 106 and a lower fixed plate hollow sealing convex ring 107 respectively arranged on the end faces of the upper fixed plate 101 and the lower fixed plate 103. After assembly, the circular discharge shell is tightly assembled with the cyclone to prevent leakage.

[0036] Example 3

[0037] On the basis of Example 1 or Example 2, Figure 3The cement preheater blanking microcrystalline tube shown in the figure also includes a group of second countersunk screw holes 115 arranged on the outer wall of the lower part of the circular blanking shell 100, and a plurality of groups of third countersunk screw holes 116 arranged on the outer wall of the middle part of the circular blanking shell 100, and a plurality of groups of second screw grooves 119 and a plurality of third screw grooves 120 respectively arranged in the outer walls of the tail lining microcrystalline tube 109 and the middle lining microcrystalline tube 110, and a second countersunk screw hole 115 and a second screw groove 119 for fixing the tail lining microcrystalline tube 109 and the circular blanking shell 100. Bolt 117, and the third bolt 118 that fixes the middle lining microcrystalline tube 110 and the circular blanking shell 100 through the third countersunk screw hole 116 and the third screw groove 120. After assembly of such a design structure, the tail lining microcrystalline tube 109, several middle lining microcrystalline tubes 110, and the head lining microcrystalline tube 111 in the circular blanking shell 100 are firmly fixed without the risk of falling off. At the same time, it is also convenient for disassembly and maintenance of the tail lining microcrystalline tube 109, several middle lining microcrystalline tubes 110, and the head lining microcrystalline tube 111 as needed.

[0038] In addition, preferably, the inner diameters of the tail lining microcrystalline tube 109, the plurality of middle lining microcrystalline tubes 110, and the head lining microcrystalline tube 111 are the same to ensure that the inner wall is smooth and there is no material hanging when the raw materials are transported.

[0039] Example 4

[0040] On the basis of Example 1 or Example 2, Figure 4 The cement preheater discharge microcrystalline tube shown in the figure also includes a plurality of tail lining microcrystalline tube grooves 121 and a plurality of head lining microcrystalline tube protrusions 122, respectively provided in the end surfaces of the tail lining microcrystalline tube 109 and the head lining microcrystalline tube 111, and a plurality of middle lining microcrystalline tube protrusions 123 and a plurality of middle lining microcrystalline tube grooves 124, respectively provided in the end surfaces of both ends of the middle lining microcrystalline tube 110 (the tail lining microcrystalline tube grooves 121 and the middle lining microcrystalline tube grooves 124 have the same depth dimension and are respectively the same as the height dimension of the head lining microcrystalline tube protrusion 122 or the middle lining microcrystalline tube protrusion 123; the head lining microcrystalline tube protrusion 122 and the middle lining microcrystalline tube protrusion 123 have the same height dimension);

[0041] Among them, the tail lining microcrystalline tube slot 121, the head lining microcrystalline tube protrusion 122, the middle lining microcrystalline tube protrusion 123, and the middle lining microcrystalline tube slot 124 are respectively set to matching circular structures, polygonal structures, or arc structures. The head lining microcrystalline tube protrusion 122 is embedded in the middle lining microcrystalline tube slot 124, and the middle lining microcrystalline tube protrusion 123 is respectively embedded in the middle lining microcrystalline tube slot 124 and the tail lining microcrystalline tube slot 121. In this way, after matching and assembly, the connection surfaces of the tail lining microcrystalline tube 109, several middle lining microcrystalline tubes 110, and the head lining microcrystalline tube 111 are firmly and stably fixed relative to each other without relative rotation and sliding.

[0042] The working principle or structural principle of the cement preheater feeding microcrystalline tube of this structure:

[0043] Please review Figure 1 and Figure 2 :

[0044] First, the tail lining microcrystalline tube 109 is horizontally loaded into the circular blanking shell 100. At this time, one side of the tail lining microcrystalline tube 109 is tightly fitted with the surface of the circular hollow positioning plate 108, and the outer wall of the circular hollow positioning plate 108 is tightly fitted with the inner wall of the circular blanking shell 100.

[0045] Then, several middle lining microcrystalline tubes 110 are horizontally loaded into the circular blanking shell 100 in sequence. At this time, the end faces and outer walls of the middle lining microcrystalline tubes 110 are tightly fitted with the surface of the tail lining microcrystalline tube 109 and the inner wall of the circular blanking shell 100 respectively.

[0046] Finally, the head lining microcrystalline tube 111 is horizontally loaded into the circular blanking shell 100. At this time, one side and the outer wall of the head lining microcrystalline tube 111 are tightly fitted with the end face of the middle lining microcrystalline tube 110 and the inner wall of the circular blanking shell 100 respectively. At the same time, the positions of the first screw groove 112 and the first countersunk screw hole 113 are aligned one by one, and then the circular blanking shell 100 and the head lining microcrystalline tube 111 are fixed by the first bolt 114.

[0047] The cement preheater of this structure is provided with microcrystalline tubes. When assembled, the two surfaces or outer walls of the tail lining microcrystalline tube 109, the middle lining microcrystalline tube 110 and the head lining microcrystalline tube 111 can be coated with high temperature resistant adhesive layers respectively.

[0048] 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.

[0049] 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 cement preheater blanking microcrystalline tube, comprising a circular blanking shell (100), an upper fixing plate (101), an upper fixing plate screw hole (102), a lower fixing plate (103) and a lower fixing plate screw hole (104), characterized in that: A circular hollow positioning plate (108) is provided on the inner wall of one end surface of the circular blanking shell (100). A plurality of first countersunk screw holes (113) are provided in the other end of the circular blanking shell (100). The lower inner wall of the circular blanking shell (100) is provided with a tail lining microcrystalline tube (109) through a circular hollow positioning plate (108). The middle inner wall of the circular blanking shell (100) and the end surface of the tail inner lining microcrystalline tube (109) are sequentially provided with a plurality of middle inner lining microcrystalline tubes (110). The upper inner wall of the circular blanking shell (100) and the end surface of the middle inner lining microcrystalline tube (110) are provided with a head inner lining microcrystalline tube (111). A plurality of first screw grooves (112) are provided in the outer wall of the microcrystalline tube (111) lined with the head. The circular blanking shell (100) and the head inner lining microcrystalline tube (111) are fixed together by a first bolt (114) through a first countersunk screw hole (113) and a first screw groove (112).

2. The microcrystalline tube for cement preheater blanking according to claim 1, characterized in that: The end surface of the circular hollow positioning plate (108) is flush with the connection surface of the circular blanking shell (100), the end surface of the head lining microcrystalline tube (111) is flush with the end surface of the circular blanking shell (100), and the height dimensions of the tail lining microcrystalline tube (109), the middle lining microcrystalline tube (110), and the head lining microcrystalline tube (111) are the same or different.

3. The microcrystalline tube for cement preheater blanking according to claim 2, characterized in that: The cement preheater discharge microcrystalline tube further comprises a set of fixed ear plates (105) arranged on the outer wall of the circular discharge shell (100), and an upper fixed plate hollow sealing convex ring (106) and a lower fixed plate hollow sealing convex ring (107) respectively arranged on the end surfaces of the upper fixed plate (101) and the lower fixed plate (103).

4. The microcrystalline tube for cement preheater blanking according to claim 1, characterized in that: The cement preheater blanking microcrystalline tube further comprises a group of second countersunk screw holes (115) arranged on the outer wall of the lower portion of the circular blanking shell (100), and a plurality of groups of third countersunk screw holes (116) arranged on the outer wall of the middle portion of the circular blanking shell (100), and a plurality of groups of second screw grooves (119) and a plurality of groups of third screw grooves (120) respectively arranged in the outer walls of the tail lining microcrystalline tube (109) and the middle lining microcrystalline tube (110), and a second bolt (117) for fixing the tail lining microcrystalline tube (109) and the circular blanking shell (100) through the second countersunk screw holes (115) and the second screw grooves (119), and a third bolt (118) for fixing the middle lining microcrystalline tube (110) and the circular blanking shell (100) through the third countersunk screw holes (116) and the third screw grooves (120).

5. The cement preheater blanking microcrystalline tube according to any one of claims 1 to 4, characterized in that: The inner diameters of the tail lining microcrystalline tube (109), the plurality of middle lining microcrystalline tubes (110), and the head lining microcrystalline tube (111) are the same.

6. The microcrystalline tube for cement preheater blanking according to claim 5, characterized in that: The cement preheater feeding microcrystalline tube further comprises a plurality of tail lining microcrystalline tube clamping grooves (121) and a plurality of head lining microcrystalline tube protrusions (122) respectively arranged in the end faces of the tail lining microcrystalline tube (109) and the head lining microcrystalline tube (111) facing each other, and a plurality of middle lining microcrystalline tube protrusions (123) and a plurality of middle lining microcrystalline tube clamping grooves (124) respectively arranged in the end faces of both ends of the middle lining microcrystalline tube (110).

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