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Tech. for baking dry quartz sand by rotating drum

A technology for drying quartz sand and quartz sand, which is applied in drying, drying machines, drying solid materials, etc., and can solve problems such as inability to meet modern production requirements, inability to pick up quartz sand, uneven drying, etc.

Inactive Publication Date: 2009-01-21
SHANDONG TIANLI DRYING TECH & EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The flame of the burner directly enters the dryer, resulting in uneven drying, low heat utilization rate, and inability to make full use of the heat source, resulting in waste of energy
[0004] 2. Ordinary rotary cylinder dryers cannot allow the quartz sand to be picked up evenly, and cannot be evenly distributed in the cross section of the dryer, which also causes a waste of energy
[0005] 3. The entire system cannot be automated and can only be operated manually, which cannot meet modern production requirements

Method used

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  • Tech. for baking dry quartz sand by rotating drum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: The process steps are as shown in the accompanying drawings. The natural gas and combustion-supporting air are mixed and sent to the gas-fired flue gas furnace 1. After burning in the flue gas furnace 1, high-temperature flue gas at 700°C is produced and enters the rotary cylinder dryer 4. The wet quartz The sand is sent into the rotary drum dryer 4 through the buffer silo 2 under the action of the vibrating feeder 3 . At the same time, the compressed air is also sent into the rotary cylinder dryer 4. The wet quartz sand is evenly lifted up by the 4 inner grid plates of the rotary cylinder dryer. After full contact, a large amount of water in the wet quartz sand is released, and the high-temperature hot flue gas becomes flue gas at about 100 ° C and a large amount of water vapor. After being purified by the cyclone dust collector 5 and the bag filter 6, it is drawn out by the induced draft fan and discharged into the atmosphere through the chimney; the dried ...

Embodiment 2

[0014] Example 2: The process steps are as shown in the accompanying drawings. The natural gas and combustion-supporting air are mixed and sent to the gas-fired flue gas furnace 1. After burning in the flue gas furnace 1, high-temperature flue gas of 780°C is produced and enters the rotary cylinder dryer 4. The wet quartz The sand is sent into the rotary drum dryer 4 through the buffer silo 2 under the action of the vibrating feeder 3 . At the same time, the compressed air is also sent into the rotary cylinder dryer 4. The wet quartz sand is evenly lifted up by the 4 internal grid plates of the rotary cylinder dryer, and after full contact, a large amount of moisture in the wet quartz sand is released, and the high-temperature hot flue gas becomes flue gas at about 130°C and a large amount of water vapor After being purified by the cyclone dust collector 5 and the bag filter 6, it is drawn out by the induced draft fan and discharged into the atmosphere through the chimney; the...

Embodiment 3

[0015] Example 3: The process steps are as shown in the accompanying drawings. Natural gas and combustion-supporting air are mixed and sent to the gas-fired flue gas furnace 1. After burning in the flue gas furnace 1, high-temperature flue gas at 850°C is produced and enters the rotary cylinder dryer 4. The wet quartz The sand is sent into the rotary drum dryer 4 through the buffer silo 2 under the action of the vibrating feeder 3 . At the same time, the compressed air is also sent into the rotary cylinder dryer 4. The wet quartz sand is evenly raised by the 4 internal grid scooping plates of the rotary cylinder dryer. After full contact, a large amount of water in the wet quartz sand is released, and the high-temperature hot flue gas becomes flue gas at about 150 ° C and a large amount of water vapor. After being purified by the cyclone dust collector 5 and the bag filter 6, it is drawn out by the induced draft fan and discharged into the atmosphere through the chimney; the d...

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Abstract

The invention relates to rotating circular cylinder quartz sand drying technique. Its process includes the following steps: inputting high temperature flue gas; inputting wet quartz sand; drying them in dryer; discharging after production dusting. The wet quartz sand drying is adopted rotating circular cylinder dryer and bag dust collector to do integration drying dusting. The qualified product is sent to next working procedure. The nonqualified product is reclaimed. The invention is adopted grid type copy plate that its thermal utilization factor can be improved 50 percent of the normal, and adopted automatic regulation burner to realize air input automation and feeding capacity automatic regulation according to the temperature.

Description

technical field [0001] The invention relates to a quartz sand drying process, in particular to a rotary cylinder quartz sand drying process. Background technique [0002] We know that the current drying process of quartz sand adopts the direct drying process of the rotary cylinder. The flame of the burner directly enters the rotary cylinder to dry the quartz sand inside the rotary cylinder. The quartz sand is in direct contact with the flame, and the dried Quartz sand directly enters the finished product silo, and after drying, the process air with humidity enters the cyclone dust collector for dust removal and is then emptied. This drying process cannot meet the requirements of modern industry due to the shortage of drying host and dust removal system. Its shortcomings are mainly manifested in the following aspects: [0003] 1. The flame of the burner directly enters the dryer, resulting in uneven drying, low heat utilization rate, and inability to make full use of the he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B3/10F26B17/30
Inventor 吉海亮蒋彬刘峰倪春林付旭东曹明见毛荣刘明
Owner SHANDONG TIANLI DRYING TECH & EQUIP
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