CN-224202194-U - Kiln inner refractory prefabricated member for rotary kiln

CN224202194UCN 224202194 UCN224202194 UCN 224202194UCN-224202194-U

Abstract

The utility model relates to the technical field of rotary kiln prefabricated parts and discloses an in-kiln refractory prefabricated part for a rotary kiln, which comprises a connecting piece, wherein first high-temperature resistant blocks are arranged at four opposite angles of the lower surface of the connecting piece, second high-temperature resistant blocks are symmetrically arranged on the lower surface of the connecting piece, a clamping groove is formed between the plurality of first high-temperature resistant blocks and the second high-temperature resistant blocks, a heat preservation and insulation piece is arranged in the clamping groove, the first high-temperature resistant blocks are arranged at four opposite angles of the lower surface of the connecting piece, the second high-temperature resistant blocks are symmetrically arranged on the lower surface of the connecting piece, a clamping groove is formed between the plurality of first high-temperature resistant blocks and the second high-temperature resistant blocks, and a heat preservation and insulation piece is arranged in the clamping groove, so that a bridge-cutoff structure can be formed to prevent the connecting piece from directly contacting with a kiln wall, and heat conduction is cut off and heat loss is prevented.

Inventors

ZHANG XIUSHENG
ZHANG CHANGZHENG
ZHANG LINGLING
LI ZHONGYANG
ZHAO MING

Assignees

河南华泽耐火材料有限公司

Dates

Publication Date: 20260505
Application Date: 20250610

Claims (7)

1. The kiln inner refractory prefabricated member for the rotary kiln is characterized by comprising a connecting piece (1), wherein the four opposite angles of the lower surface of the connecting piece (1) are respectively provided with a first high-temperature resistant block (2), the lower surface of the connecting piece (1) is symmetrically provided with a second high-temperature resistant block (3), a clamping groove is formed between a plurality of the first high-temperature resistant blocks (2) and the second high-temperature resistant blocks (3), and a heat preservation and insulation piece (4) is arranged in the clamping groove; The high-temperature-resistant connecting device comprises a first high-temperature-resistant block (2), a first connecting clamping block (5) is arranged on the first high-temperature-resistant block (2), first connecting clamping grooves (6) are formed in four opposite angles of the lower surface of the connecting piece (1), the first connecting clamping grooves (6) are matched with the first connecting clamping block (5), a second connecting clamping block (7) is arranged on the second high-temperature-resistant block (3), second connecting clamping grooves (8) are symmetrically formed in the lower surface of the connecting piece (1), and the second connecting clamping grooves (8) are matched with the second connecting clamping blocks (7); Bolt pieces (9) are arranged between the first high-temperature resistant block (2) and the second high-temperature resistant block (3) and the heat preservation and insulation piece (4).
2. The kiln inner refractory prefabricated member for the rotary kiln, as set forth in claim 1, characterized in that the cross sections of the first connecting clamping block (5) and the first connecting clamping groove (6) and the cross sections of the second connecting clamping block (7) and the second connecting clamping groove (8) are all of T-shaped structures.
3. The kiln inner refractory prefabricated member for the rotary kiln of claim 1, wherein the heat preservation and insulation member (4) is internally embedded with an anchor member (10), the anchor member (10) is of a trapezoid structure, and the lower end of the anchor member (10) extends out of the lower bottom surface of the heat preservation and insulation member (4).
4. A kiln inner refractory prefabricated member for rotary kiln according to claim 1, characterized in that the direction of the first connecting clamping groove (6) is perpendicular to the direction of the second connecting clamping groove (8).
5. The kiln inner refractory prefabricated member for the rotary kiln of claim 1, wherein the heat preservation and insulation piece (4) is provided with a notch, the first high temperature resistant block (2) and the second high temperature resistant block (3) are matched with the notch, the first high temperature resistant block (2) and the second high temperature resistant block (3) are provided with an adapting groove matched with a threaded piece, and the inner wall of the notch is provided with a threaded hole in threaded connection with a bolt piece (9).
6. A kiln inner refractory prefabricated member for a rotary kiln according to claim 3, characterized in that the lower end of the anchoring member (10) is folded to form a folded foot structure.
7. The kiln inner refractory prefabricated member for rotary kiln according to claim 1, characterized in that a jogged convex edge (11) is arranged on one side surface of the connecting piece (1), and a jogged groove (12) is arranged on the other side surface of the connecting piece (1).

Description

Kiln inner refractory prefabricated member for rotary kiln Technical Field The utility model relates to the technical field of rotary kiln prefabricated parts, in particular to a kiln inner refractory prefabricated part for a rotary kiln. Background The traditional rotary kiln is formed by casting a casting material on a construction site, and the casting material needs to be cured and baked after being cast, so that good strength can be ensured only by long-time curing. For enterprises, each production stoppage for one day means a great loss of economic benefit. Thus, improvements have been made over the conventional techniques described above, namely, directly making it into preforms at the factory and then assembling it to the rotary kiln on site. For example, the utility model patent with the publication number of CN218821649U discloses a composite heat-insulating prefabricated member for a rotary kiln, wherein the clay heat-insulating prefabricated member is arranged in a cross shape, the clay heat-insulating prefabricated member is matched and embedded in a cross caulking groove of the high-alumina prefabricated member, so that the side end face and the lower end face of the clay heat-insulating prefabricated member are flush with the corresponding end face of the high-alumina prefabricated member, and the high-alumina prefabricated member can cross the clay heat-insulating prefabricated member to directly contact with a kiln wall, thereby forming a heat bridge effect, and heat can be quickly lost through heat conduction. We have therefore proposed an in-kiln refractory preform for a rotary kiln in order to solve the problems set out above. Disclosure of utility model The utility model aims to solve the problems that the side end face and the lower end face of the clay heat-preserving prefabricated part are flush with the corresponding end face of the high-alumina prefabricated part by arranging the clay heat-preserving prefabricated part in a cross shape and matching and embedding the clay heat-preserving prefabricated part in a cross caulking groove of the high-alumina prefabricated part, and the high-alumina prefabricated part can cross the clay heat-preserving prefabricated part to directly contact with a kiln wall so as to form a heat bridge effect and quickly lose heat through heat conduction. The utility model adopts the following technical scheme that the kiln inner refractory prefabricated member for the rotary kiln comprises a connecting piece, wherein the four opposite angles of the lower surface of the connecting piece are respectively provided with a first high temperature resistant block, the lower surface of the connecting piece is symmetrically provided with a second high temperature resistant block, a clamping groove is formed between a plurality of the first high temperature resistant blocks and the second high temperature resistant blocks, and a heat preservation and insulation piece is arranged in the clamping groove; The first high-temperature resistant block is provided with a first connecting clamping block, four diagonal positions of the lower surface of the connecting piece are provided with first connecting clamping grooves, the first connecting clamping grooves are matched with the first connecting clamping blocks, the second high-temperature resistant block is provided with a second connecting clamping block, the lower surface of the connecting piece is symmetrically provided with second connecting clamping grooves, and the second connecting clamping grooves are matched with the second connecting clamping blocks; bolt pieces are arranged between the first high-temperature resistant block, the second high-temperature resistant block and the heat preservation and insulation piece. Further, cross sections of the first connecting clamping block and the first connecting clamping groove, and cross sections of the second connecting clamping block and the second connecting clamping groove are all of T-shaped structures. Further, an anchor piece is arranged in the heat preservation and insulation piece in a pre-buried mode, the anchor piece is arranged to be of a trapezoid structure, and the lower end of the anchor piece extends out of the lower bottom surface of the heat preservation and insulation piece. Further, the direction of the first connecting clamping groove is perpendicular to the direction of the second connecting clamping groove. Further, a groove is formed in the heat preservation and insulation piece, the first high-temperature resistant block and the second high-temperature resistant block are matched with the groove, the first high-temperature resistant block and the second high-temperature resistant block are respectively provided with an adapting groove matched with the threaded piece, and the inner wall of the groove is provided with a threaded hole in threaded connection with the bolt piece. Further, the lower end of the anchoring piece is folded to form a foldi