Production technology for drainage agent

A production process and technology of drainage agent, applied in the field of production technology of drainage agent, can solve the problems of product stability impact, low heat utilization efficiency, increased labor cost, etc., to reduce the number of operators, high heat utilization efficiency, and reduced labor. cost effect

Active Publication Date: 2016-06-29
HENAN TONGYU METALLURGY MATERIALS GRP
7 Cites 3 Cited by

AI-Extracted Technical Summary

Problems solved by technology

This kind of process requires many workers, which increases labor costs and human factors also have a great impact on product stability. In additi...
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

Method used

A, according to the granularity requirement of raw material in the product formula, chrome ore and desert sand are screened to corresponding grain grade respectively, the composition of each raw material after metering and screening ensures that Cr in chrome ore O Content >=45%, desert sand The content of SiO2 in the medium is ≥ 94%, and then the raw materials that meet the formula requirements are transported to the drying site; B. Use the belt conveyor to transport them to the roller kang, and use the gas produced by the gas generator to burn in the hot stove to provide hot air Carry out drying, during the drying process, the rotating speed of the roller kang is controlled at 300 rpm, and the induced air temperature is controlled at 150°C, so that the moisture mass percentage in each raw material after drying is <0.1%. When making raw materials, it is necessary to clean up the raw materials in the drum kang before drying another raw material. A cyclone separator is connected to the outlet of the drum kang to separate and collect the dust generated during the drying process to achieve dust removal efficiency. Effect; C. Transport the dried raw materials to the air-cooled roller kang, and carry out air-cooled cooling, so that the water mass percentage in the air-cooled raw materials is <0.1%, and the temperature is ≤200°C; D. Carry out sampling inspection of each raw material after air cooling to ensure that the moisture content of each raw material ...
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

Abstract

The invention provides a production technology for a drainage agent and belongs to the technical field of metal smelting. Gas provided by a gas generator is combusted in a hot blast stove to serve as a heat source, and various raw materials are dried in a heatable roller brick bed firstly; then the raw materials are cooled through air cooling and conveyed into corresponding bins, automatic discharging and carbon adding are conducted according to the ratio of a formula, and even stirring is conducted in a closed stirring tank; and then automatic packaging is conducted, and warehousing is conducted. A full-automatic production line is adopted for the integral technology, stability of the product quality is ensured, in addition, the number of working personnel is reduced, and the labor cost is reduced; and meanwhile, the influences of human factors on the product quality are also greatly reduced, dust removing devices are arranged for links where dust is liable to be generated on the heatable roller brick bed and the sealed stirring tank so that generated dust can be collected and removed, dust pollution is reduced, the environment-friendly standard is improved, and clean and efficient production is achieved.

Application Domain

Technology Topic

Image

  • Production technology for drainage agent

Examples

  • Experimental program(3)

Example Embodiment

[0037] Example one
[0038] A steel mill ladle drainage sand, the product formula contains 60 to 70 parts of chromium ore, 5 to 15 parts of alumina balls, 20 to 30 parts of desert sand and 1 to 5 parts of performance modifier. The performance modifier is Flake graphite, super carbon black and semi-reinforced carbon black are mixed in any proportion; among them, Cr in chrome ore 2 O 3 The content of ≥45%, the particle size is 0.2~0.9mm, and 80 mesh ≤ 3%, 20 mesh ≤ 2%, moisture ≤ 0.5%, calculated by weight percentage; SiO in desert sand 2 The content is ≥94%, and the particle size is 0.5~1.2mm.
[0039] Using the production process of the drainage agent of the present invention to produce the above drainage agent can be carried out as follows:
[0040] A. According to the particle size requirements of the raw materials in the product formula, sieving the chromium ore and desert sand to the corresponding particle size respectively, and measuring the composition of each raw material after sieving to ensure that the Cr in the chrome ore 2 O 3 The content of ≥45%, SiO in desert sand 2 The content of ≥94%, and then the raw materials that meet the requirements of the formula are transported to the drying site; B. The belt conveyor is used to transport to the drum kang, and the gas produced by the gas generator is burned in the hot blast stove to provide hot air for drying. During the drying and drying process, the rotating speed of the drum kang is controlled at 300 rpm, and the temperature of the induced air is controlled at 150 ℃, so that the moisture content of each raw material after drying is less than 0.1%. When drying different raw materials , The raw materials in the drum kang need to be cleaned before drying another raw material. Connect a cyclone separator at the outlet of the drum kang to separate and collect the dust generated during the drying process to achieve the effect of dust removal; C. Transport the dried raw materials to the air-cooled drum kang for air-cooling, so that the moisture mass percentage of each raw material after air cooling is less than 0.1% and the temperature is less than or equal to 200°C; D. After the cold, each raw material is sampled and inspected to ensure that the moisture content of each raw material is less than 0.1%; E. Each qualified raw material is transported to the designated silo through a conveyor device for storage, and labeled; F. According to the product formula According to the production tonnage of 2, 5, 8 or 10 tons each time, the microcomputer batching system calculates the quality of each raw material, and automatically controls the feeding and transport to the closed mixing tank to ensure the quality error of each production < 5kg; G. The carbonaceous material mixed with flake graphite, super carbon black and semi-reinforcing carbon black in any ratio is fed from a separate silo into a closed mixing tank, and the mixing time is controlled at 10 minutes to obtain the finished product, and the mixing tank is closed The outlet is connected with a cyclone separator for dust removal; H. Sampling inspection of the finished products to ensure that the moisture content of the finished product is less than 0.1%; I. Use a hoist to transport the inspected finished products to the high-position storage tank, ready for continuous Packaging; J. According to packaging requirements, control the measurement error of each bag <0.5kg/bag; K. Use an automatic packaging machine for packaging, the temperature in the packaging process is <60℃, and the mass percentage of moisture <0.1%; L. Finally Store the packaged finished products in storage.

Example Embodiment

[0041] Example two
[0042] A steel factory ladle drainage sand, the product formula is 60-76% of chromium sand, of which the Cr in the chromium sand 2 O 3 The mass percentage content of ≥45%; sea sand 10-20%, alumina ball 4-9%, desert sand 4-9%, potash feldspar 3-5%, carbon black 0.3-0.8%, flake graphite 0.3- 1.0%. The production process of the drainage agent of the present invention is used to produce the above-mentioned ladle drainage agent. The production steps are the same as those in the first embodiment. The difference is: step B, in the drying process, the drum kang speed is controlled at 450 rpm, and the air is induced The temperature is controlled at 200°C; in step G, carbon black and flake graphite are fed from a separate silo into a closed mixing tank, and the mixing time is controlled at 20 minutes to obtain a finished product.

Example Embodiment

[0043] Example three
[0044] The ladle drainage agent of a steel plant is made of the following raw materials: The mass distribution ratio is as follows: chromium sand 50-80%, white quartz sand 10-30%, fused magnesia 8-20%, and the particle size of each raw material is controlled within the required range Inside.
[0045] The production process of the ladle drainage agent of the present invention is used to produce the above-mentioned ladle drainage agent. The production steps are the same as those in the first embodiment. The difference is: step B, in the drying process, the drum kang speed is controlled at 300 rpm, The wind temperature is controlled at 150°C; in step G, the fused magnesia is fed from a separate silo into a closed mixing tank, and the mixing time is controlled at 30 minutes to obtain a finished product.
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

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
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

Similar technology patents

Taper thermal transfer printing machine

ActiveCN102848712AProduct quality is stableCost reductionTransfer printingPrinting press partsThermal printingCircumference measure
Owner:WENLING GAOBAO PRINTING IND

Classification and recommendation of technical efficacy words

  • Reduce the number of workers
  • Product quality is stable

Latex pillow production line

Owner:浙江舒慕思乳胶科技有限公司
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