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Stepping type pellet roasting equipment

A step-by-step and roasting technology, applied in the field of pellet roasting, can solve the problems of increased energy consumption, many wearing parts of high temperature-resistant alloy steel, poor sealing effect, etc., and achieves a reduction in the number of trolleys, a simple equipment structure, and extended use. effect of life

Pending Publication Date: 2022-04-01
ZHEJIANG BOYI ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also disadvantages: the roasting machine is a device that runs back and forth continuously on the vertical surface. It has head and tail star wheels and their brackets, complex driving devices, round-trip travel and trolleys on the star wheels, trolleys and grates, and baffles There are many wearing parts such as high-temperature-resistant alloy steel, and the continuous operation of the roasting machine back and forth on the vertical surface is likely to cause deviation and arching of the trolley, resulting in air leakage and increased energy consumption, and the end of the trolley is easy to wear
Rod-drop seals between the roaster cover and the trolley on the side of the roaster and the slideway between the trolley and the bellows have poor sealing effects, which have a great impact on thermal efficiency and air flow balance
resulting in high investment and operating costs

Method used

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  • Stepping type pellet roasting equipment
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  • Stepping type pellet roasting equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] see Figure 1-4 , a step-by-step pellet roasting equipment, comprising a bottom laying device 1, a trolley 2, a bellows 6, a roasting furnace cover 7, a sealing device 9, and a track 15;

[0041] The track 15 is used to provide a route for the trolley 2 to travel;

[0042] The trolley 2 is slidably connected to the track 15, and is used to place pellet raw materials;

[0043] Bottom paving device 1 is fixedly connected to the top of the trolley 2. In order to ensure the uniformity of pellet roasting and protect the main beam, end beam and baffle of the trolley 2 from high temperature damage, a layer is laid on the trolley 2. cooked ball;

[0044] Roasting furnace cover 7 is used to realize the roasting of pellet raw material in trolley 2, and said roasting furnace cover 7 is located above trolley 15;

[0045] The bellows 6 is fixedly connected to the outside of the bottom end of the roasting furnace cover 7, the bellows 6 is located below the trolley 2, and the bellows...

Embodiment 2

[0090] see figure 1 , in order to realize the roasting and molding processing of green pellets, the roasting furnace cover 7 includes a blast drying section, a draft drying section, a preheating section, a roasting section, a soaking section and a cooling section, thereby completing the green pellets in the trolley. Roasting and molding processing of dough.

[0091] The cooling section is further divided into a cooling section I and a cooling section II;

[0092] The roasting furnace cover 7 is located at the top of the trolley 2, and the bellows 6 is located at the bottom of the trolley 2. The roasting furnace cover 7 and the bellows 6 are parallel up and down, and the bellows 6 communicates with the roasting furnace cover 7, so that the wind box 6 The gas can pass through the green pellets in the trolley 2 to enter the roaster cover 7 .

[0093] The roasting furnace cover 7 is divided into blast drying cover 71, exhaust drying cover 72, combustion chamber 73, preheating ro...

Embodiment 3

[0110] see image 3 Since the trolley 2 enters between the bellows 6 and the roasting furnace cover 7, there will inevitably be gaps between the trolley 2 and the bellows 6, and between the trolley 2 and the roasting furnace cover 7, which are not tightly fitted. Sealing device 9 is designed for the airtightness between trolley 2 and bellows 6, and between trolley 2 and roaster cover 7, effectively avoiding air leakage between trolley 2 and bellows 6, and between trolley 2 and roaster cover 7 .

[0111] Described roasting furnace cover 7 side, between bellows 6 and trolley 2, between roasting furnace cover 7 and trolley 2 are provided with sealing device 9, described sealing device 9 selects water sealing device for use, can effectively block air leakage; Advanced mechanical seals are adopted between the first bellows 6 and the last bellows 6 at the left and right ends of the roasting furnace cover 7 and the trolley 2; The joint sealing of the windshield and micro-negative p...

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Abstract

The invention discloses stepping type pellet roasting equipment which comprises a track, a trolley movably connected to the track, a bottom and edge paving device fixedly connected to the upper portion of the trolley, a roasting furnace cover located above the trolley and used for roasting pellet raw materials in the trolley, and an air bellow fixedly connected to the outer side of the bottom end of the roasting furnace cover and located below the trolley. The water sealing devices are fixedly connected between the air bellow and the trolley and between the roasting furnace cover and the trolley and are positioned on the left and right side surfaces of the roasting furnace cover; the roasting equipment continuously operates on the same horizontal plane in a rectangular track, the trolleys are closely arranged and moved in the working process, the equipment structure is simple, and the number of the trolleys and the weight of the equipment are reduced by nearly half. Equipment operation can be automatically controlled by a programmable program, the probability of deviation, air leakage and arching of the trolley is reduced, meanwhile, abrasion of the trolley is reduced, and the service life of the trolley is prolonged.

Description

technical field [0001] The present invention relates to the technical field of pellet roasting, in particular to a pelletizer with a scale of 300,000 to 6 million tons, which uses finely ground iron ore, sulfuric acid slag, finely ground non-ferrous metal ore, and various other industrial raw materials and solid waste. Roasting equipment. Background technique [0002] At present, there are three types of pellet roasting: shaft furnace pellet technology, grate machine-rotary kiln pellet technology and belt roasting technology. Shaft furnace pellets are low in investment and occupy a small area, but the production capacity of a single unit is low, and the adaptability of raw materials and fuels is poor; the single unit of grate-rotary kiln pellets has a large capacity, strong adaptability of raw materials and fuels, and good product quality, but high investment and Occupying a large area, the rotary kiln is easy to form rings, resulting in a low operating rate, and the heat l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/16F27B9/02F27B9/26F27B9/30F27B9/38
Inventor 王荣成
Owner ZHEJIANG BOYI ENVIRONMENTAL TECH CO LTD
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