Method for pouring guide plate of cyclone preheater of cement dry-process kiln

A technology of cyclone preheater and pouring method, which is applied in the direction of heat exchanger shell, heat exchange equipment, lighting and heating equipment, etc., can solve the problems of easy monetization, short service life and corrosion of the deflector, and reduce the difficulty of operation. , The effect of improving quality performance and reducing cost

Inactive Publication Date: 2015-12-23
ANHUI WUHU CONCH CONSTR & INSTALLATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems that the deflector in the cyclone preheater on the existing cement dry process kiln is easy to liquidate, corrode, and have a short service life

Method used

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  • Method for pouring guide plate of cyclone preheater of cement dry-process kiln
  • Method for pouring guide plate of cyclone preheater of cement dry-process kiln

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example one:

[0026] A method for pouring the deflector of the cyclone preheater of cement dry kiln, including frame welding, batching, mixing, first pouring, second pouring, third pouring, and shaping steps;

[0027] Specific steps:

[0028] A. Frame welding: Weld the heat-resistant round steel material of 1Crl8Ni9Ti into a frame with a thickness of 100mm, the frame height is 3000mm, and the distance between the heat-resistant round steel and the heat-resistant round steel is set to 150mm, on the surface of the heat-resistant steel Evenly coated with paraffin with a thickness of 5mm;

[0029] B. Ingredients: mix the ultra-high-strength wear-resistant castable with water and fiber (weight ratio is 100:4:7) to make a castable. The heat-resistant temperature of the castable is ≤1650℃, under the condition of 1100℃, 24h Compressive strength ≥120MPa, wear resistance ≤8;

[0030] C. Stirring: Stir the castable with a powerful mixer, the speed is controlled to 800r / min, and the stirr...

Example Embodiment

[0035] Embodiment two:

[0036] A method for pouring the deflector of the cyclone preheater of cement dry kiln, including frame welding, batching, mixing, first pouring, second pouring, third pouring, and shaping steps;

[0037] Specific steps:

[0038] A. Frame welding: Weld the heat-resistant round steel material of 1Crl8Ni9Ti into a frame with a thickness of 120mm, the frame height is 3400mm, and the distance between the heat-resistant round steel and the heat-resistant round steel is set to 165mm, on the surface of the heat-resistant steel Evenly coated with paraffin wax with a thickness of 3mm;

[0039] B. Ingredients: mix ultra-high-strength wear-resistant castables with water and fiber (weight ratio of 100:5.5:9) to make castables. The heat-resistant temperature of the castables is ≤1650℃, under the conditions of 1100℃, 24h Compressive strength ≥120MPa, wear resistance ≤8cc;

[0040] C. Stirring: Stir the castable with a strong mixer, the speed is controlled to 1200r / min, and t...

Example Embodiment

[0045] Embodiment three:

[0046] A method for pouring the deflector of the cyclone preheater of cement dry kiln, including frame welding, batching, mixing, first pouring, second pouring, third pouring, and shaping steps;

[0047] Specific steps:

[0048] A. Frame welding: Weld the heat-resistant round steel material of 1Crl8Ni9Ti into a frame with a thickness of 115mm, the frame height is 3100mm, and the distance between the heat-resistant round steel and the heat-resistant round steel is set to 200mm, on the surface of the heat-resistant steel Evenly coated with paraffin wax with a thickness of 10mm;

[0049] B. Ingredients: The ultra-high-strength wear-resistant castable is mixed with water and fiber (weight ratio is 100:6:10) to make a castable. The castable has a heat resistance temperature of ≤1650°C and a compressive strength of 1200°C× 24h≥150MPa, abrasion resistance≤9cc;

[0050] C. Stirring: Stir the castable with a powerful mixer, the speed is controlled to 1300r / min, and t...

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Abstract

The invention discloses a method for pouring a guide plate of a cyclone preheater of a cement dry-process kiln. The method comprises the steps of welding of a framework, material proportioning, stirring, pouring for the first time, pouring for the second time, pouring for the third time, and shaping. According to the method, a traditional guide plate made of a heat-resistant steel plate is replaced by the guide plate made of ultrahigh-strength abrasion-resistant poured materials through pouring, in this way, the manufacturing cost of the guide plate is reduced, the quality performance of the guide plate is improved, and the service life of the guide plat is prolonged; a limited types of auxiliary materials are added in the ultrahigh-strength abrasion-resistant poured materials, in this way, the performance of the ultrahigh-strength abrasion-resistant poured materials is further improved, and thus the quality performance of the guide plate is further improved; by conducting pouring three times, the operation difficulty of pouring of the guide plate is lowered, the strength of the guide plate is improved, and thus the resistance reducing effect of the guide plate is improved.

Description

technical field [0001] The invention relates to a pouring method of a deflector, in particular to a pouring method of a deflector used for a cyclone preheater of a cement dry process kiln. Background technique [0002] The cyclone preheater on the cement dry process kiln can improve the separation efficiency and reduce the resistance loss. In order to avoid the collision and extrusion between the inlet airflow and the return flow of the cyclone preheater, the Adding deflectors can achieve a good drag reduction effect, and the existing deflectors are mostly made of Cr25Ni20Si2 heat-resistant steel plates. / s, the scouring of the dust-laden gas is very large, which will cause the guide plate in the high-temperature corrosive gas to gradually deform and corrode, and the refractory material connected to the guide plate will also be squeezed and cracked due to the deformation of the guide plate, not only The service life of the deflector is shortened, the normal operation of the...

Claims

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Application Information

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IPC IPC(8): B28B1/04B28B1/52F28F9/24
CPCB28B1/045B28B1/52F28F9/24
Inventor 仝超
Owner ANHUI WUHU CONCH CONSTR & INSTALLATION ENG
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