A high-strength heat-insulating and wear-resistant castable for a catalytic cracking unit

A catalytic cracking device and castable technology, which is applied in the field of high-strength heat-insulating and wear-resistant castables, can solve the problems of easy separation and peeling of the wear-resistant layer and the heat-insulating layer, and achieve excellent thermal shock resistance, reduced dosage, and wear-resistant good sex effect

Active Publication Date: 2016-08-24
宜兴瑞泰耐火材料有限公司 +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference in density and expansion coefficient between the wear-resistant layer and the heat-insulating layer, the wear-resistant layer and the heat-insulating layer are easy to separate and peel off as the number of start-ups and shutdowns increases.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A high-strength heat-insulating and wear-resistant castable for a catalytic cracking unit
  • A high-strength heat-insulating and wear-resistant castable for a catalytic cracking unit
  • A high-strength heat-insulating and wear-resistant castable for a catalytic cracking unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention can be better understood from the following examples. However, those skilled in the art can easily understand that the content described in the embodiments is only for illustrating the present invention, and should not and will not limit the present invention described in the claims.

[0024] A high-strength heat-insulating and wear-resistant castable for a catalytic cracking unit, which includes the following components by weight percentage:

[0025]

[0026] The sum of the weight percentages of the above components is 100%;

[0027] Based on the sum of the weights of the above components, plus:

[0028] Polycarboxylic acid 0.1~0.15%;

[0029] Water 10-15%.

[0030] The method for preparing the above-mentioned high-strength heat-insulating and wear-resistant castable for the catalytic cracking unit is to prepare the formula amount of massive perlite with a particle size of 7-1 mm, ceramsite with a particle size of 5-1 mm, 220 mesh first-grad...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a high-strength thermal insulation wear-resistant castable for a catalytic cracking device, which comprises the following components in percentage by weight: 25-46% of block perlite with a particle size of 7-1mm, 5-20% of ceramsite with a particle size of 5-1mm, 3-18% of 220-mesh first-class alumina, 4-8% of 220-mesh fused quartz, 3-8% of silica fume, 5-15% of floating beads and 5-30% of CA-65P cement, wherein the total weight percentage of the components is 100%; based on the total weight of the components, 0.1-0.15% of polycarboxylic acid is added, and 10-15% of water is added in construction. The high-strength thermal insulation wear-resistant castable disclosed by the invention has the advantages of high mechanical strength, good wear resistance, low linear change rate and low heat conductivity coefficient, and also has an ultralong service life of 8-9 years and an energy saving effect; moreover, the outer temperature of a shell can be freely adjusted at 80-120 DEG C or 140-170 DEG C by adopting the castable with different heat conductivity coefficients according to the needs of a petrochemical plant.

Description

technical field [0001] The invention relates to a high-strength heat-insulating and wear-resistant pouring material for a catalytic cracking device, which belongs to the field of refractory materials in the discipline of inorganic non-metallic materials. Background technique [0002] The catalytic cracking unit is the most important petroleum processing equipment. The shells of the reactor (settler) and regenerator (referred to as the two units) in the catalytic cracking unit are generally made of double-layer wear-resistant lining of tortoise shell mesh or steel fiber without tortoise shell mesh. Enhanced heat insulation and wear-resistant double-layer lining, the temperature in the reactor is about 550 ℃, and the temperature in the regenerator is about 800 ℃. The heat-insulating and wear-resistant double-layer lining with tortoise shell net is composed of cylindrical anchor nails, end plates, tortoise shell net, heat insulation lining and wear-resistant lining. Bulge or c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 曾鲁举吴顺年彭国军陈磊陈松林钱蛇大张小初
Owner 宜兴瑞泰耐火材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products