阅读说明：本技术 一种拼接式水泥预热器内筒 (Concatenation formula cement preheater inner tube ) 是由 王大亮 王二虎 于 2019-11-20 设计创作，主要内容包括：本发明公开了一种拼接式水泥预热器内筒,属于水泥生产装置技术领域。本发明包括加强板、外层浇注料和内层浇注料,外层浇注料和内层浇注料分别设置于加强板的两侧；所述加强板由多块单体板拼接组成,所述单体板的侧部设置有拼接凹部和/或拼接凸部。本发明单体板的拼接凹部与相邻单体板的拼接凸部相配合一方面保证相邻单体板的稳定拼接,另一方面凹凸结构的拼接方式保证内筒在使用过程中的强度。(The invention discloses a spliced cement preheater inner barrel, and belongs to the technical field of cement production devices. The invention comprises a reinforcing plate, an outer layer casting material and an inner layer casting material, wherein the outer layer casting material and the inner layer casting material are respectively arranged on two sides of the reinforcing plate; the reinforcing plate is formed by splicing a plurality of single plates, and splicing concave parts and/or splicing convex parts are arranged on the side parts of the single plates. The splicing concave parts of the single plates are matched with the splicing convex parts of the adjacent single plates, so that the adjacent single plates are stably spliced, and the strength of the inner cylinder in the using process is ensured by the splicing mode of the concave-convex structure.)

1. The spliced cement preheater inner cylinder is characterized by comprising a reinforcing plate (110), an outer-layer castable (101) and an inner-layer castable (102), wherein the outer-layer castable (101) and the inner-layer castable (102) are respectively arranged on two sides of the reinforcing plate (110); the reinforced plate (110) is formed by splicing a plurality of single plates (111), splicing concave parts (151) and/or splicing convex parts (152) are arranged on the side parts of the single plates (111), the splicing concave parts (151) of the single plates (111) are matched with the splicing convex parts (152) of the adjacent single plates (111), and the adjacent single plates (111) are spliced through the matching of the splicing concave parts (151) and the splicing convex parts (152).

2. A spliced cement preheater inner tube according to claim 1, wherein the length of the splicing concave portion (151) in the vertical direction is gradually reduced and the cross-sectional area of the splicing convex portion (152) is gradually increased in the direction away from the side of the single-body plate (111).

3. A spliced cement preheater inner barrel according to claim 1, wherein the splicing recess (151) is a dovetail groove.

4. The spliced cement preheater inner barrel as claimed in claim 1, wherein a plurality of through holes (120) are formed in the reinforcing plate (110), the through holes (120) penetrate through two sides of the reinforcing plate (110), and the outer-layer casting material (101) and the inner-layer casting material (102) are connected through the through holes (120).

5. The spliced cement preheater inner barrel as claimed in claim 1, wherein the reinforcing plate (110) is provided with a fixing member mounting hole, a fixing member is mounted in the fixing member mounting hole, the fixing member extends from the reinforcing plate (110) to two sides of the reinforcing plate (110), and the fixing member is embedded in the outer layer casting material (101) and the inner layer casting material (102).

6. The spliced cement preheater inner barrel as claimed in claim 1, wherein the length of the splicing concave part (151) and the splicing convex part (152) is L, and L is more than or equal to 80cm and less than or equal to 300 cm.

7. A spliced cement preheater inner barrel according to claim 3, wherein the included angle between the inner side edge of the dovetail groove and the bottom of the groove is α, wherein the included angle is more than or equal to 20 degrees and less than or equal to α degrees and less than or equal to 70 degrees.

8. A spliced cement preheater inner tube according to claim 4, wherein the through holes (120) are arranged in rows on the reinforcing plate (110) along the circumferential direction of the inner tube, the distance between adjacent rows is equal, and the distance between adjacent through holes (120) in the same row is equal; and/or the width of the reinforcing plate (110) is W, the distance between the through holes (120) in the adjacent rows is d, d is W/k, and k is more than or equal to 2.5 and less than or equal to 3.5.

9. The spliced cement preheater inner barrel of claim 5, wherein the fixing pieces are fixing nails arranged in a crossed manner, and the crossed parts of the fixing nails are fixed in the fixing piece mounting holes.

10. The spliced cement preheater inner barrel of claim 5, wherein the splicing convex part (152) is provided with a fixing piece mounting hole, and a fixing piece is mounted in the fixing piece mounting hole.

Technical Field

The invention relates to the technical field of cement production devices, in particular to a spliced cement preheater inner cylinder.

Background

In the cement production industry, the preheater inner tube is the important equipment of guaranteeing the normal production of cement, and in the rotary kiln preheater of production cement, the preheater need for the powder and the hot-blast multistage concurrent heat exchange that provides of kiln tail makes the powder finally get into the rotary kiln and calcines, and the inner tube can provide sufficient dispersion time for the powder, and this in-process inner tube operating mode environment is very abominable, and it faces the high-speed of high temperature, alkali steam, sulphur steam and powder and erodees.

At present, the inner cylinder of the existing preheater is mostly of a hanging piece type, the hanging piece is mainly cast by cast heat-resistant steel, and because the environment in the preheater is harsh, the service life of a product can be greatly shortened by high-speed scouring of high temperature, alkali steam, sulfur steam and powder, particularly, the service life of the hanging piece of the four-stage preheater and the five-stage preheater is only about one year. To the shortcoming of present lacing-type preheater inner tube, the inventor has developed the preheater inner tube of integral type earlier stage, and this preheater inner tube includes the reinforcing plate in intermediate level to be provided with the refractory material layer in the both sides of reinforcing plate, discovery after the use compares in traditional lacing-type preheater inner tube, and the life of this preheater inner tube prolongs greatly, and it not only has better intensity, and anti physical and chemical erosion ability is stronger moreover.

But the inventor discovers in the actual production installation, because cement preheats equipment fixing space reason, the integral type preheater inner tube can't form whole after the equipment appearance and transport into the mounted position again, need transport the integral type preheater inner tube with the modular form to the mounted position after again install formula, but the cooperation between each part of modular preheater inner tube is comparatively difficult, if the improper installation leads to the inner tube intensity reduction in the use easily.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to provide a spliced cement preheater inner cylinder, aiming at the technical problem that the integral strength of the inner cylinder is reduced due to improper connection mode of the integral preheater inner cylinder part; the single plates of the inner cylinder are spliced in a specific splicing mode, so that the strength of the inner cylinder of the integral preheater after splicing is improved.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the spliced cement preheater inner barrel comprises a reinforcing plate, an outer-layer castable and an inner-layer castable, wherein the outer-layer castable and the inner-layer castable are respectively arranged on two sides of the reinforcing plate; the reinforcing plate is formed by splicing a plurality of single plates, splicing concave parts and/or splicing convex parts are arranged on the side parts of the single plates, the splicing concave parts of the single plates are matched with the splicing convex parts of adjacent single plates, and the adjacent single plates are spliced through the matching of the splicing concave parts and the splicing convex parts.

Preferably, the length of the splicing concave part in the vertical direction is gradually reduced and the cross-sectional area of the splicing convex part is gradually increased along the direction far away from the side part of the single plate.

Preferably, the splicing recess is a dovetail groove.

Preferably, a plurality of through holes are formed in the reinforcing plate, the through holes penetrate through two sides of the reinforcing plate, and the outer-layer casting material and the inner-layer casting material are connected through the through holes.

Preferably, the reinforcing plate is provided with a fixing piece mounting hole, a fixing piece is mounted in the fixing piece mounting hole, the fixing piece extends from the reinforcing plate to two sides of the reinforcing plate, and the fixing piece is embedded into the outer-layer casting material and the inner-layer casting material.

Preferably, the length of the splicing concave part and the splicing convex part is L, and L is more than or equal to 80cm and less than or equal to 300 cm.

Preferably, the included angle between the inner side edge of the slot of the dovetail slot and the slot bottom is α, wherein the included angle is more than or equal to 20 degrees and less than or equal to α degrees and less than or equal to 70 degrees.

Preferably, the through holes are arranged in a row on the reinforcing plate along the circumferential direction of the inner cylinder, the distance between adjacent rows is equal, and the distance between adjacent through holes in the same row is equal; and the width of the reinforcing plate is W, the distance between the through holes in the adjacent rows is d, d is W/k, and k is more than or equal to 2.5 and less than or equal to 3.5.

Preferably, the fixing piece is a fixing nail which is arranged in a crossed manner, and the crossed position of the fixing nail is fixed in the fixing piece mounting hole.

Preferably, the splicing convex part is provided with a fixing piece mounting hole, and a fixing piece is mounted in the fixing piece mounting hole.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:

(1) the spliced cement preheater inner barrel comprises a reinforcing plate, an outer-layer castable and an inner-layer castable, wherein the outer-layer castable and the inner-layer castable are respectively arranged on two sides of the reinforcing plate; the reinforcing plate is formed by splicing a plurality of single plates, splicing concave parts and/or splicing convex parts are arranged on the side parts of the single plates, and the splicing concave parts of the single plates are matched with the splicing convex parts of the adjacent single plates; splice mutually through the cooperation of concatenation concave part and concatenation convex part between the adjacent monomer board, splice the stable concatenation of guaranteeing adjacent monomer board on the one hand through the cooperation of concatenation concave part and concatenation convex part, and on the other hand concave-convex structure's concatenation mode can avoid adjacent monomer board junction to take place too big deformation when the temperature becomes to guarantee the intensity of inner tube in the use.

(2) According to the spliced cement preheater inner barrel, the reinforcing plate is provided with the plurality of through holes, the through holes penetrate through two sides of the reinforcing plate, the outer-layer castable and the inner-layer castable are connected through the through holes, so that the outer-layer castable and the inner-layer castable are integrated, and the bonding strength of the outer-layer castable and the inner-layer castable on the reinforcing plate is improved.

(3) According to the spliced cement preheater inner cylinder, the through holes are uniformly distributed on the reinforcing plate in a row shape, and the through holes in adjacent rows are arranged in a staggered mode, so that the strength loss of the reinforcing plate after punching can be avoided due to reasonable arrangement of the through holes under the condition that castable on two sides of the reinforcing plate can be effectively combined.

(4) According to the spliced cement preheater inner cylinder, the reinforcing plate is provided with the fixing piece mounting holes, the fixing pieces are mounted in the fixing piece mounting holes and extend from the reinforcing plate to the two sides of the reinforcing plate, and the fixing pieces are embedded into the outer-layer castable and the inner-layer castable, so that the combination effect of the single-side castable and the reinforcing plate is enhanced, the combination strength between the outer-layer castable and the inner-layer castable is improved, and the overall strength of the inner cylinder is greatly improved.

Drawings

FIG. 1 is a schematic structural diagram of an inner cylinder of a spliced cement preheater according to the present invention;

FIG. 2 is a top view of a spliced cement preheater according to the present invention;

FIG. 3 is a cross-sectional view of an inner barrel of a spliced cement preheater according to the present invention;

FIG. 4 is a schematic cross-sectional view of a through hole in an inner cylinder of a split joint cement preheater according to the present invention;

FIG. 5 is a schematic diagram showing the distribution of through holes on an inner cylinder of a spliced cement preheater according to the present invention;

FIG. 6 is a schematic view showing the distribution of the fixing members on the cross section of the inner cylinder of the spliced cement preheater according to the present invention;

FIG. 7 is a schematic view of adjacent cell plates being welded.

The reference numerals in the schematic drawings illustrate:

101. an outer layer castable; 102. inner layer casting material; 110. a reinforcing plate; 111. a monolithic plate; 120. a through hole; 121. the end of the bar hole; 122. a contraction section; 131. a first fastener mounting hole; 132. a second fixing member mounting hole; 141. a first fixing member; 142. a second fixing member; 151. splicing the concave parts; 152. and (4) splicing the convex parts.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the invention, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the invention without affecting the effect and the achievable purpose of the invention. Meanwhile, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description only, and are not used to limit the implementable scope, and the relative relationship changes or adjustments may be considered to be within the implementable scope of the present invention without substantial technical changes; in addition, the embodiments of the present invention are not independent of each other, but may be combined.