CN210242316U - Drying equipment for drying high-moisture granular activated carbon by using flue gas - Google Patents

Abstract

The utility model provides a drying equipment of high moisture granule active carbon is dried with flue gas, it is cuboid structure, by equipment pillar, ejection of compact spiral, flue gas passageway, material passageway, wave hot plate, vapor discharge port, drying equipment casing, vapor discharge pipe, flue gas water conservancy diversion baffle, heat preservation, feed bin, flue gas discharge port, flue gas passageway top connecting pipe, flue gas passageway bottom connecting pipe and flue gas entry constitute. A wave-shaped heating plate is used for dividing the shell of the drying equipment into a plurality of longitudinally and parallelly arranged smoke channels and material channels; a plurality of rows of water vapor discharge ports are uniformly distributed on each wavy heating plate, and the water vapor discharge pipes are used for connecting two adjacent rows of water vapor discharge ports so as to discharge water vapor generated in the drying process; the smoke channel and the material channel are arranged at intervals, so that the product channel is heated by the smoke channels on the two sides; the outermost side of the drying equipment is provided with a flue gas channel, and each flue gas channel is divided into three sections by a flue gas diversion clapboard, so that a flue gas path is S-shaped.

Description

Drying equipment for drying high-moisture granular activated carbon by using flue gas

Technical Field

The utility model relates to a drying equipment, especially a drying equipment with flue gas stoving high moisture granule active carbon.

Background

In the production process of the activated carbon, on one hand, a large amount of high-temperature flue gas is generated in the carbonization and activation processes and is exhausted to the atmosphere, for example, the activated carbon is produced by a water vapor activation method, the activation temperature is as high as 850-900 ℃, the temperature of the activated tail gas discharged after passing through a waste heat boiler can also reach 400-500 ℃, and the waste of heat energy and the heat pollution are caused; on the other hand, rinsing treatment such as acid washing, water washing and the like is carried out in the process of producing the activated carbon, and after rinsing, the moisture content of the wet activated carbon semi-finished product is high and is 40-50%. Activated carbon is a high-temperature resistant product and can bear higher drying temperature, similar flue gas drying equipment is available, for example, a patent with application number 201020102501.8, "drying equipment using flue gas waste heat", is characterized in that flue gas is used for heating radiating fins paved on the ground and surrounding wall surfaces to heat air in a drying chamber, the purpose of material on a conveying belt of the drying chamber is realized, and the defects of low heat transfer efficiency and low drying speed exist; also, as patent No. 201810033522.X, "method for drying wet charcoal by using flue gas waste heat and continuous drying equipment thereof", it is characterized in that the drying equipment is vertical cylindrical, and is provided with multiple layers of drying disks, the material is heated and dried on the drying disks, the material needs to be scraped and pushed onto the next layer of drying disk layer by using scraping blades, the area of the drying disk is limited, and the drying disk cannot be made very large, and the drying yield is limited. Based on this background, the utility model discloses a drying equipment with flue gas stoving high moisture granule active carbon, this drying equipment's drying area can be done great, and drying output is great.

Disclosure of Invention

The utility model provides a drying equipment with flue gas stoving high moisture granule active carbon, this drying equipment are the cuboid structure, drying equipment comprises equipment pillar (1), ejection of compact spiral (2), flue gas passageway (3), material passageway (4), wave hot plate (5), vapor discharge port (6), drying equipment casing (7), vapor discharge pipe (8), flue gas water conservancy diversion baffle (9), heat preservation (10), feed bin (11), flue gas discharge port (12), flue gas passageway top connecting pipe (13), flue gas passageway bottom connecting pipe (14) and flue gas entry (15). A wave-shaped heating plate (5) is used for dividing the inside of a drying equipment shell (7) into a plurality of longitudinally parallel smoke channels (3) and material channels (4); a plurality of rows of water vapor outlets (6) are uniformly distributed on each wave-shaped heating plate (5), and two adjacent rows of water vapor outlets are connected by a water vapor discharge pipe (8) so as to discharge water vapor generated in the drying process in a centralized manner; the smoke channel (3) and the material channel (4) are arranged at intervals, so that the product channel is heated by the smoke channels on the two sides; the outermost side of the drying equipment is provided with a flue gas channel, each flue gas channel is divided into three sections by a flue gas diversion clapboard (9), so that a flue gas path is S-shaped to improve the heat transfer effect of flue gas, and the outer side of a shell (7) of the drying equipment is provided with a heat insulation layer (10); a bin (11) of wet granular activated carbon is arranged at the top of the drying equipment; a discharge screw (2) is arranged at the bottom of each product channel to continuously discharge the dried granular activated carbon product; a flue gas inlet (15) is arranged at the bottom of the drying equipment, and two adjacent flue gas channels are communicated by a flue gas channel bottom connecting pipe (14) at the bottom of the drying equipment; the top of the drying equipment is provided with a flue gas discharge port (12), and two adjacent flue gas channels are communicated by a flue gas channel top connecting pipe (13).

Drawings

FIG. 1 is a schematic view of a cross-sectional structure of a drying apparatus for drying high-moisture granular activated carbon with flue gas, wherein FIG. 1 is an apparatus support; 2, a discharge screw; 3 is a flue gas channel; 4 is a material channel; 5 is a wave-shaped heating plate; 6 is a steam outlet; 7 is a drying device shell; 8 is a water vapor discharge pipe; 9 is a flue gas diversion baffle plate; 10 is a heat-insulating layer; 11 is a storage bin; FIG. 2 is a schematic cross-sectional view of the section A-A in FIG. 1, and 12 is a flue gas discharge port; 13 is a flue gas channel top connecting pipe; FIG. 3 is a cross-sectional structural view of B-B in FIG. 1, and FIG. 14 is a connecting pipe at the bottom of the flue gas channel; and 15 is a flue gas inlet.

Detailed Description

A drying equipment with flue gas stoving high moisture granule active carbon is to the drying operation of high moisture granule active carbon of realization like this: the wet granular activated carbon which is filtered to be dry after rinsing is added into a storage bin (11) by an electric hoist, and each material channel is filled. Activated flue gas from an activation furnace is introduced into flue gas channels of the drying equipment through a flue gas inlet (15), each flue gas channel is filled with high-temperature flue gas, heat is transferred to wet granular activated carbon in the material channel (4) through the wavy heating plate (5) to increase the temperature of the wet granular activated carbon, so that moisture in the wet granular activated carbon is volatilized and escaped, and the wet granular activated carbon is intensively discharged out of the drying equipment through a water vapor discharge pipe (8) through a water vapor discharge port (6) distributed on the wavy heating plate (5), so that the activated carbon is dried. After the flue gas is introduced for a proper time, the discharging screw (2) is started to output the materials from the drying equipment at a proper discharging speed, the materials which are not completely dried are returned to the storage bin (11) for drying again after a period of time, the materials are discharged as products when the water content of the output materials meets the requirement, the materials are stopped to return to the storage bin, and the discharging speed is suitable for meeting the requirement of the water content of the products. Like this, add feed bin (11) with wet granule active carbon intermittent type formula in, carry out the continuous ejection of compact through ejection of compact spiral (2), the bed of material gradually moves down, realizes the serialization drying operation of wet charcoal.

Claims (1)

1. A drying equipment for drying high-moisture granular activated carbon by using flue gas is characterized in that: the drying equipment is of a cuboid structure and consists of an equipment support column (1), a discharge spiral (2), a flue gas channel (3), a material channel (4), a wave-shaped heating plate (5), a water vapor discharge port (6), a drying equipment shell (7), a water vapor discharge pipe (8), a flue gas diversion baffle plate (9), a heat preservation layer (10), a storage bin (11), a flue gas discharge port (12), a flue gas channel top connecting pipe (13), a flue gas channel bottom connecting pipe (14) and a flue gas inlet (15); a wave-shaped heating plate (5) is used for dividing the inside of a drying equipment shell (7) into a plurality of longitudinally parallel smoke channels (3) and material channels (4); a plurality of rows of water vapor outlets (6) are uniformly distributed on each wave-shaped heating plate (5), and two adjacent rows of water vapor outlets are connected by a water vapor discharge pipe (8) so as to discharge water vapor generated in the drying process in a centralized manner; the smoke channel (3) and the material channel (4) are arranged at intervals, so that the product channel is heated by the smoke channels on the two sides; the outermost side of the drying equipment is provided with a flue gas channel, each flue gas channel is divided into three sections by a flue gas diversion clapboard (9), so that a flue gas path is S-shaped to improve the heat transfer effect of flue gas, and the outer side of a shell (7) of the drying equipment is provided with a heat insulation layer (10); a bin (11) of wet granular activated carbon is arranged at the top of the drying equipment; a discharge screw (2) is arranged at the bottom of each product channel to continuously discharge the dried granular activated carbon product; a flue gas inlet (15) is arranged at the bottom of the drying equipment, and two adjacent flue gas channels are communicated by a flue gas channel bottom connecting pipe (14) at the bottom of the drying equipment; the top of the drying equipment is provided with a flue gas discharge port (12), and two adjacent flue gas channels are communicated by a flue gas channel top connecting pipe (13).

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