This technical condition is applicable to the masonry construction and acceptance of sulfuric acid boiling furnaces for roasting pyrite to produce sulfur dioxide raw gas. It can also be used as a reference for the masonry construction of sulfur incinerators using sulfur as raw material. HG/T 20661-1999 Technical Conditions for Masonry of Sulfuric Acid Boiling Furnaces (with clause explanation) HG/T20661-1999 Standard download decompression password: www.bzxz.net

Industry Standard of the People's Republic of China
HG/T 20661 -1999
Technical Specification of Lining Layingfor Fluidized Bed Furnace of Sulphuric Acid1999-12-10 Issued
2000- 04 - 01
State Administration of Petroleum and Chemical Industry
Document of State Administration of Petroleum and Chemical Industry
State Petrochemical Administration (1999) No. 517
Notice on Approval of 25 Chemical Industry Standards Including "Classification and Technical Conditions for Stainless Steel Manholes and Handholes"
China Chemical Exploration and Design Association:
The draft of 25 chemical industry standards including "Classification and Technical Conditions for Stainless Steel Manholes and Handholes" submitted by your association for approval has been approved by our bureau and is now issued. Standard name and number: Mandatory standard
Standard number
HG 21594 - 1999
HG 21595-1999
HG 21596 - 1999
HG 21597 - 1999
HG 21598 - 1999
HG 21599 -- 1999
HG 21600 - 1999
HG21601-1999
HG 21602 - 1999
HG21603-1999
Standard name
Classification and technical conditions for stainless steel manholes and handholes (replacing HGJ 503 - 86)
Normal pressure stainless steel manhole (replace HGJ504-86)Swing cover stainless steel manhole (replace HGI505-86)Swing arch cover quick opening stainless steel manhole (replace HGI506-86)
Horizontal hanging cover stainless steel manhole (replace HGI507-86)Vertical hanging cover stainless steel manhole (replace HGJ508-86)Oval quick opening stainless steel manhole (replace HGJ509-86)Normal pressure quick opening stainless steel hand hole (replace HGJ510-86)Flat cover stainless steel hand hole (replace HGJ511-86)Swing cover quick opening stainless steel hand hole (replace HGJ512-86)
HG 21604 - 1999
：Recommended standard
HG/T 20579.1 - 1999
HG/T 20579.2 -- 1999
HG/T 20579.3 -- 1999
HG/T 20661 -- 1999
HG/T 20662 - 1999
HG/T 20663 --- 1999
HG/T 20664 -- 1999| |tt||HG/T 20665- 1999
HG/T 22814 -1999
HG/T 20666 -1999
HG/T 20646 - 1999
HG/T 21629 -- 1999
HG/T 20696 - 1999
Stainless steel hand hole with quick opening of rotary handle (replaces HGJ513-86)Design regulations for process equipment models (replaces CD43A1-86)
Quality acceptance standards for process equipment pipeline modelsTechnical regulations for model design of finished product packaging and transportationTechnical conditions for masonry of sulfuric acid boiling furnace
Technical regulations for mechanical transportation of chemical powder materialsDesign regulations for metering, packaging and stacking systems of chemical powder and granular products
Technical regulations for power supply design of chemical enterprises (replaces CD90A5-85)
Classification standard for seismic fortification of chemical buildings and structuresDesign specification for mine shaft and tunnel engineering
Design code for power supply in corrosive environment of chemical enterprises (replaces CD90A6 -85)
Design regulations for piping materials for chemical plants
Standard drawings for pipe racks (replacing HGJ524-91)
Design regulations for glass fiber reinforced plastic chemical equipment
The above standards shall be implemented from April 1, 2000, and the replaced standards shall be abolished at the same time. State Bureau of Petroleum and Chemical IndustryWww.bzxZ.net
December 10, 1999
China Chemical Exploration and Design Association
China Chemical Exploration and Design Association [2000] No. 023
Notice on entrusting the editing, publishing and issuing of chemical industry standards National Chemical Engineering Construction Standard Editing Center: Notice of the State Bureau of Petroleum and Chemical Industry on the approval of 25 chemical industry standards including "Classification and Technical Conditions for Stainless Steel Manholes and Handholes" [National Petrochemical Government (1999517) approved the 25 chemical industry standards organized and compiled by our association (the approval document is attached). After research, these 25 chemical industry standards are entrusted to your center to be responsible for editing, publishing and issuing. Attachment: Notice on the approval of 25 chemical industry standards including "Classification and Technical Conditions for Stainless Steel Manholes and Handholes".
China Chemical Exploration and Design Association
March 31, 2000
Industry Standards of the People's Republic of China
Technical Conditions for Masonry of Sulfuric Acid Boiling Furnace
HG/T 20661 - 1999
Editor: Nanhua Group Design Institute
Approval Department: State Petroleum and Chemical Industry Bureau Implementation Date: April 1, 2000
National Chemical Engineering Construction Standard Editing Center (formerly the Engineering Construction Standard Editing Center of the Ministry of Chemical Industry) 2000
1 Basis for the preparation of the standard
This standard is based on the 1996 No. 90 document issued by the Construction Coordination Department of the former Ministry of Chemical Industry on the issuance of the 1996 design basic work plan 2 Main technical contents of the standard
This technical condition specifies the masonry construction requirements of sulfuric acid boiling furnaces used for roasting pyrite to produce SO raw gas.
It also puts forward corresponding requirements for furnace shell, furnace lining materials, winter construction, masonry project acceptance and furnace drying related to masonry quality. 3 Standard Proposing Unit and Address
This standard is proposed by the National Chemical Industry Furnace Design Technology Center. Address: No. 521, Jingjin Road, Beichen District, Tianjin, Postal Code: ：300400
4 Who compiled the standard? Chief editor and main drafter list Chief editor: Nanhua Group Design Institute
Main drafters: Lin Zuhan, Jiang Chunshi, Congnan, Zhang Qiaxing
2 Furnace shell
Furnace lining materials
3.1 Transportation, acceptance and storage of materials
3.2 Common materials for furnace lining and their standards
Refractory slurry
Preparation before masonry
Thickness of lining mortar joints
Furnace Masonry
Masonry of furnace roof
Construction of refractory castables for furnace lining
Construction of refractory castables on hood plate
Construction in winter
Inspection of masonry works
7 Furnace drying
Appendix A Explanation of terms and expressions used in this regulation.
Explanation of clauses
1 General
1.0.1 In order to make the masonry construction of sulfuric acid fluidized bed furnaces more regular and thus ensure the masonry quality of sulfuric acid fluidized bed furnaces, this technical condition is specially formulated. 1.0.2 This technical condition is applicable to the masonry construction and acceptance of sulfuric acid fluidized bed furnaces (hereinafter referred to as "fluidized bed furnaces") for roasting pyrite to produce SO2 raw gas. It can also be used as a reference for the masonry construction of sulfur incinerators using sulfur as raw material. 1.0.3 The shell of the fluidized bed furnace directly affects the masonry of the furnace lining. This technical condition puts forward certain requirements for the production of the shell.
1.0.4 The masonry of the furnace lining shall be carried out after the installation of the furnace shell steel structure is completed and the inspection is qualified.
1.0.5 The masonry and acceptance of the boiling furnace shall not only comply with this technical condition, but also comply with the relevant mandatory standards currently in force in the country, including the "Industrial Furnace Masonry Engineering Construction and Acceptance Code" (GBI211), "Industrial Furnace Masonry Engineering Quality Inspection and Evaluation Standard" (GB50309) and "Chemical Industrial Furnace Masonry Technical Conditions" (HG20543). 1.0.6Relevant standards
GB/T 2091
GB/T 2988
GB/T 2994
GB/T 3003
GB 3712||tt| |GB/T 3994
GB/T 3996
GB/T 4209
GB4415
《Industrial Phosphoric Acid》
《High Alumina Brick》
《High Alumina Refractory Slurry》
《Ordinary Lead Silicate Refractory Fiber》
Felt》
《Clay and high-alumina refractory castables》《Clay insulating refractory bricks》
《Diatomaceous earth insulation products》
《Sodium silicate》| |tt||《Clay Refractory Brick》
GB 10325
GB/T 14982
GB 50309
GBJ 211
HG20543||tt| |JB/T4735
ZBG 12017
《Rules for the Stacking, Sampling, Acceptance, Storage and Transportation of Refractory Products》,《Clay Refractory Slurry》,《Industrial Furnace Masonry Engineering Quality Inspection and Evaluation Standards》,《Industrial Furnace Masonry Engineering Construction and Acceptance Specifications" "Technical Conditions for Masonry of Chemical Industrial Furnaces"
"Steel Welded Atmospheric Pressure Vessels"
"Industrial Sodium Fluorosilicate"
Special Terms for Fluidized Bed Furnaces
The special terms for boiling furnace are shown in Figure 1.0.7. Figure 1.0.7 Special terminology for fluidized bed furnace
1 One-hole dry brick: 2 Upper combustion layer: 3 Furnace shell: 4 Furnace top; 5 Pressure foot brick: 6 Arch foot brick; 7- Refractory brick layer; 8-insulation layer; 9-expansion joint: 10-expansion layer; 11-boiling layer; 12 hood plate refractory castable 3
2 furnace shell
2.0.1 furnace shell The manufacturing and installation must comply with the requirements of the design drawings. 2.0.2 The welded furnace shell should ensure good welding quality, the weld surface should be smooth and round, and there should be no defects such as cracks, pores, arc pits and slag inclusions. .3 When welding the furnace shell, the allowable misalignment of the longitudinal joints and circumferential joints should be selected according to the provisions of Table 2.0.3.
Table 2.0.3 Permissible misalignment of welded joints of furnace shell Nominal thickness at joints
20<8≤40
Misalignment of longitudinal joints
Transverse joints Misalignment
During assembly welding, the outer arc length between the center lines of the longitudinal joint welds of adjacent cylinder sections should be greater than 100mm.
The furnace shell is welded After processing, it should be ensured to have a good appearance. The difference between the maximum inner diameter and the minimum inner diameter on the same two sections of the furnace shell 2.0.52
: When the inner diameter of the furnace shell is not more than 4m, it should not be greater than the inner diameter of the section. 3/1000: When the inner diameter of the furnace shell is greater than 4m, it should not be greater than 2.5/1000 of the inner diameter of the section, and should not be greater than 30mm. 2.0.6 The verticality tolerance of the center line of the furnace shell should not exceed 1/ 1000 total height.
2.0.7 The remaining technical requirements shall comply with the relevant provisions of "Steel Welded Atmospheric Pressure Vessels" (JB/T4735).
Furnace lining materials
3.1 Transportation and acceptance of materials 3.1.1 The transportation, acceptance and storage of refractory products and materials used in the lining of the fluidized bed furnace shall comply with the provisions of the Rules for the Stacking, Sampling, Acceptance, Storage and Transportation of Refractory Products (GB10325). |3.1.2 The refractory materials and products transported to the masonry site should have factory certificates and quality certificates. For refractory materials with time limits, their validity period should also be indicated. Before masonry, relevant standards, technical conditions and design It is required to conduct visual inspection or selection of the brand, brick number, grade, etc. of refractory materials and products, and if necessary, it should be determined by laboratory inspection. 3.1.3 When loading, unloading, transporting and storing refractory materials, they must be strictly protected from collision and damage, and must not be exposed to moisture and rain. Showering should also prevent contamination.
3.1.4 Refractory materials and products stored at the masonry site should be placed in rainproof and moisture-proof warehouses. Refractory binders, powders, aggregates, refractory mud and refractory fibers that need to be sealed should be placed in a warehouse. The refractory materials or products in the warehouse or masonry site should be unsealed before use. Antifreeze measures should be taken for refractory materials with antifreeze requirements. Flammable binders are strictly prohibited from contacting open flames.
, 3.1.5 Refractory materials or products in warehouses or masonry sites should be The brand, brick number, grade and masonry sequence are reasonably stacked and marked with eye-catching signs. 3.2 Commonly used materials and standards for furnace linings
3.2.1 Commonly used refractory materials for masonry boiling furnace linings are generally clay refractory bricks, high Aluminum bricks, clay insulation refractory bricks, diatomite insulation products, refractory fibers, refractory castables
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