CN207850007U

CN207850007U - A kind of dry kiln heating system of dry laterite

Info

Publication number: CN207850007U
Application number: CN201820176199.7U
Authority: CN
Inventors: 习雪康
Original assignee: Guangdong Century Tsingshan Nickel Industry Co Ltd
Current assignee: Guangdong Century Tsingshan Nickel Industry Co Ltd
Priority date: 2018-02-01
Filing date: 2018-02-01
Publication date: 2018-09-11
Anticipated expiration: 2028-02-01

Abstract

The utility model is related to a kind of dry kiln heating systems of dry laterite, it includes rotary kiln exhaust gas output channel, hot-blast stove, dry kiln, coal dust transfer passage and air-supply passage, the rotary kiln exhaust gas output channel is connected by flow control valve I with hot-blast stove, rotary kiln exhaust gas output channel is equipped with on-line checking channel I, on-line checking channel I is equipped with detection valve I, on-line checking channel I and is equipped with detection thermometric instrument I；The coal dust transfer passage and air-supply passage are communicated with the combustion chamber of hot-blast stove respectively, air-introduced machine I is set on coal dust transfer passage, air-supply passage is equipped with air-introduced machine II, hot-blast stove is communicated by hot blast pipe with dry kiln, the wind pipe of dry kiln is equipped with electrostatic precipitator, and the humidity instrument of detection laterite is equipped in dry kiln；The system saves heat source, reduces cost, fully utilizes thermal energy, reaches energy-saving and environment-friendly purpose.

Description

A kind of dry kiln heating system of dry laterite

Technical field

The utility model belongs to waste heat utilization technology field, and in particular to a kind of dry kiln heat supply system of dry laterite System.

Background technology

In the industries such as metallurgy, cement, rotary kiln is widely used as a kind of drying equipment.In high temperature section, rotary kiln Kiln body surface temperature all uses air-cooled or water-cooled cooling, a large amount of thermal energy to be directly emitted in air at present up to 1000 DEG C or more, This not only wastes a large amount of thermal energy, also results in the high temperature pollution around kiln body.

And in industrial processes, some raw materials will could enter processing line after dry and use, currently, to original The drying of material generally uses following two modes：First way, it would be desirable to which dry raw material is exposed under the sun, utilizes the sun Moisture evaporation in raw material can be realized dry purpose, still, it is this shine material mode carry out raw material drying when, by Weather is affected, and production efficiency is very low, and the quality of production also cannot be guaranteed；The second way, using dry kiln pair Raw material is dried, and existing dry kiln includes dry cylinder, driving device, holder, and dry cylinder is arranged on holder, driving Device setting is provided with feed inlet and exhaust pipe below dry cylinder, in dry cylinder one end, is provided with and removes on exhaust pipe Dirt device, is additionally provided with air-introduced machine between deduster and dry cylinder, and the other end of dry cylinder is provided with feed opening and air inlet It manages, is provided with control valve in air inlet pipe, air inlet pipe end is provided with combustion chamber, air blower is provided on combustion chamber, it is this Dry kiln generally uses coal, fuel oil or natural gas as unique heat source, although the production efficiency of this dry kiln is higher, It is, due to the higher price of coal, fuel oil or natural gas so that production cost greatly increases.

In view of problem above, it is badly in need of finding a kind of solution.

Utility model content

In order to solve the problems, such as that technical background is proposed, the utility model provides a kind of dry kiln confession of dry laterite Hot systems, the system save heat source, reduce cost, fully utilize thermal energy, reach energy-saving and environment-friendly purpose.

In order to achieve the above object, the utility model uses following technical scheme：

The utility model provides a kind of dry kiln heating system of dry laterite, it includes rotary kiln exhaust gas output Channel, hot-blast stove, dry kiln, coal dust transfer passage and air-supply passage, the rotary kiln exhaust gas output channel pass through flow control Valve I is connected with hot-blast stove, and rotary kiln exhaust gas output channel is equipped with on-line checking channel I, and on-line checking channel I is equipped with detection Valve I, on-line checking channel I are equipped with detection thermometric instrument I；The coal dust transfer passage and air-supply passage respectively with hot-blast stove Combustion chamber communicates, and sets air-introduced machine I on coal dust transfer passage, and air-supply passage is equipped with air-introduced machine II, hot-blast stove by hot blast pipe with Dry kiln communicates, and the wind pipe of dry kiln is equipped with electrostatic precipitator, and the humidity instrument of detection laterite is equipped in dry kiln.

Further include tail gas from electric furnace channel according to the dry kiln heating system of above-mentioned drying laterite, tail gas from electric furnace is logical Road is connected by flow control valve II with hot-blast stove, and tail gas from electric furnace channel is equipped with on-line checking channel II, on-line checking channel II is equipped with detection valve II, on-line checking channel II and is equipped with detection thermometer Table II.

According to the dry kiln heating system of above-mentioned drying laterite, the wind pipe and electrostatic precipitation of the dry kiln Smoke temperature reducer is equipped between device.

According to the dry kiln heating system of above-mentioned drying laterite, the outer wall of the dry kiln is coated with polyurethane guarantor Warm layer.

According to the dry kiln heating system of above-mentioned drying laterite, air-duct clapboard, air duct are equipped in the dry kiln Partition board is arcuate structure, and air-duct clapboard is uniformly arranged along the madial wall of dry kiln.

Compared with prior art, the beneficial effects of the utility model：

1, the utility model structure includes rotary kiln exhaust gas output channel, hot-blast stove, dry kiln, coal dust transfer passage and send Wind channel, the rotary kiln exhaust gas output channel is connected by flow control valve I with hot-blast stove, in rotary kiln exhaust gas output channel It is equipped with detection valve I, on-line checking channel I equipped with on-line checking channel I, on-line checking channel I and is equipped with detection thermometric instrument I；The coal dust transfer passage and air-supply passage are communicated with the combustion chamber of hot-blast stove respectively, and air-introduced machine I is set on coal dust transfer passage, Air-supply passage is equipped with air-introduced machine II, and hot-blast stove is communicated by hot blast pipe with dry kiln, and the wind pipe of dry kiln is equipped with quiet Electric precipitator, the interior humidity instrument for being equipped with detection laterite of dry kiln；Rotary kiln exhaust gas output channel in the structure is used for will Tail gas in rotary kiln is input to as heat source in hot-blast stove, is further used for dry kiln, line sense channel I and inspection after being heated Testing temperature instrument I is used to detect the exhaust temperature in rotary kiln；Air-introduced machine I is used for pulverized coal conveying, and air-introduced machine II is for inputting sky Gas；The flue gas of the wind pipe of dry kiln is by electrostatic precipitator dust removal process；The structure fully utilizes rotary kiln exhaust gas thermal energy, Achieve the purpose that dry laterite.

2, in the utility model structure further include tail gas from electric furnace channel, tail gas from electric furnace channel passes through flow control valve II and heat Wind furnace is connected, and tail gas from electric furnace channel is equipped with on-line checking channel II, and on-line checking channel II is equipped with detection valve II, examines online It surveys channel II and is equipped with detection thermometer Table II, structure center line sense channel II and detection thermometer Table II are used for tail gas from electric furnace Temperature；Smoke temperature reducer, the setting of smoke temperature reducer are equipped between the wind pipe and electrostatic precipitator of the dry kiln In order to avoid the excessively high destruction for causing electrostatic precipitator of the exhaust temperature of dry kiln, the service life of electrostatic precipitator is influenced；Institute The outer wall for stating dry kiln is coated with polyurethane insulation coating, and the design of polyurethane insulation coating dissipates convenient for the heat reduced in dry kiln It loses；Air-duct clapboard is equipped in the dry kiln, air-duct clapboard is arcuate structure, and air-duct clapboard is uniform along the madial wall of dry kiln Setting, the structure realize the hot wind in dry kiln and are uniformly distributed, and realize the evenly drying to laterite.

3, the utility model is easy to operate, economical and practical, has broad application prospects.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model.

Specific implementation mode

The utility model is described in further detail below in conjunction with the accompanying drawings.

Shown in Figure 1, the utility model provides a kind of dry kiln heating system of dry laterite, it includes back Rotary kiln tail gas output channel 1, tail gas from electric furnace channel 2, hot-blast stove 3, dry kiln 4, coal dust transfer passage 5 and air-supply passage 6, it is described Rotary kiln exhaust gas output channel 1 is connected by flow control valve I7 with hot-blast stove 3, and rotary kiln exhaust gas output channel is equipped with online Sense channel I8, on-line checking channel I8 are equipped with detection valve I9, on-line checking channel I8 and are equipped with detection thermometric instrument I10； The tail gas from electric furnace channel 2 is connected by flow control valve II11 with hot-blast stove 3, and tail gas from electric furnace channel 2 is equipped with on-line checking Channel II12, on-line checking channel II12 are equipped with detection valve II13, on-line checking channel II12 and are equipped with detection thermometric instrument II14；The coal dust transfer passage 5 and air-supply passage 6 are communicated with the combustion chamber of hot-blast stove 3 respectively, are set on coal dust transfer passage 5 Air-introduced machine I15, air-supply passage 6 are equipped with air-introduced machine II16, and hot-blast stove 3 is communicated by hot blast pipe 17 with dry kiln 4, dry kiln 4 Outer wall be coated with polyurethane insulation coating 18, air-duct clapboard 19 is equipped in dry kiln, air-duct clapboard is arcuate structure, air-duct clapboard 19 are uniformly arranged dry along the madial wall of dry kiln 4, and the wind pipe of dry kiln 4 is equipped with electrostatic precipitator 20, dry kiln 4 It is equipped with smoke temperature reducer 21 between wind pipe and electrostatic precipitator 20, the humidity instrument of detection laterite is equipped in dry kiln 22。

Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these should also be considered as The scope of protection of the utility model.

Claims

1. a kind of dry kiln heating system of dry laterite, it is characterised in that it includes rotary kiln exhaust gas output channel, heat Wind furnace, dry kiln, coal dust transfer passage and air-supply passage, the rotary kiln exhaust gas output channel pass through flow control valve I and heat Wind furnace is connected, and rotary kiln exhaust gas output channel is equipped with on-line checking channel I, and on-line checking channel I is equipped with detection valve I, Line sense channel I is equipped with detection thermometric instrument I；The coal dust transfer passage and air-supply passage respectively with the combustion chamber of hot-blast stove It communicates, air-introduced machine I is set on coal dust transfer passage, air-supply passage is equipped with air-introduced machine II, and hot-blast stove passes through hot blast pipe and dry kiln It communicates, the wind pipe of dry kiln is equipped with electrostatic precipitator, and the humidity instrument of detection laterite is equipped in dry kiln.

2. the dry kiln heating system of dry laterite according to claim 1, it is characterised in that：It further include electric furnace tail Gas channel, tail gas from electric furnace channel are connected by flow control valve II with hot-blast stove, and tail gas from electric furnace channel is logical equipped with on-line checking Road II, on-line checking channel II are equipped with detection valve II, on-line checking channel II and are equipped with detection thermometer Table II.

3. the dry kiln heating system of dry laterite according to claim 1, it is characterised in that：The dry kiln Smoke temperature reducer is equipped between wind pipe and electrostatic precipitator.

4. the dry kiln heating system of dry laterite according to claim 1, it is characterised in that：The dry kiln Outer wall is coated with polyurethane insulation coating.

5. the dry kiln heating system of dry laterite according to claim 1, it is characterised in that：In the dry kiln Equipped with air-duct clapboard, air-duct clapboard is arcuate structure, and air-duct clapboard is uniformly arranged along the madial wall of dry kiln.