LPG 喷雾干燥(中英) 说明书

2021年2月10日发(作者：dressed)

离心喷雾使用说明书

LPG-

喷雾干燥机

Spray Dryer

使用说明书

Operation instruction

People

’

s Republic of China

目

录

-1-

离心喷雾使用说明书

Catalogue

1.

概述

General

…………………………………………………

1

2.

工作原理

Working Principle

………………………………………

1

3.

设备特点

Equipment Features

……………………………………

2

4.

干燥机组的安装

Dryer Installation

………………………………………

3

5.

离心喷雾干燥机操作程序

Operation Procedure of Spray Dryer

………………

3

(1)

开车前的准备工作

Preparation Before Start-up

(2)

开车运行

Start-up

(3)

停车

Stop Running

(4)

停车后的清洗

Cleaning After Stop

6.

高速雾化器的维修与保养

Maintenance of High-speed Atomizer

……………………

4

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离心喷雾使用说明书

7.

故障分析与排除

Fail Analysis and Repair

……………………………

6

8.

安全生产

Safety Operation

………………………………………

7

9.

离心喷雾自控系统

Auto- control System of Centrifugal Spray

……………

8

10.

喷雾干燥塔中主要易损件

Main Wearing Part of Spray Drying Tower

…………

9

附：电气原理图；

Attachment: Electrical Principle Dwg.

1.

概述

General

LPG

型高速离心喷雾干燥机，主要用于使稀溶液、乳浊液、悬浮

< p>
-3-

离心喷雾使用说明书

< br>液、浆状物料、

熔融液及中药浸膏等物料喷雾干燥成干粉。具有速度

快、效率高、工序少等优点。对热敏性物料可保持其色、香、味。干

粉溶解性 好，纯度高，该型喷雾干燥机可广泛用于塑料、染料、轻工

业、化肥、食品、医药，特别 是热敏性物料，如牛奶、药物、染料等

工业领域广泛使用。

LPG High-speed Centrifugal Spray Dryer mainly used for the drying

of

materials such

as weak

solution,

emulsion,

suspending

liquid,

slurry,

melt-water, Chinese herbal extract etc. to dry powder. It has advantages

of high speed and efficiency as well as less process. For thermal sensitive

material,

it

can

keep

its

color,

scent

and

taste.

Dry

powder

has

good

solubility and high purity.

This kind of dryer has widely application on

industries

such

as

plastic,

dye

stuff,

light

industry,

fertilizer,

food-stuff,

pharmaceutical

especially

for

heat-sensitive

materials

such

as

milk,

medicine, dye stuff etc.

2.

工作原理

Working Principle

LPG

喷雾干燥机是将需雾化的料液直接干燥成固体粉粒的过程。

< p>
干燥是传热和传质同时进行的过程。

在干燥过程中，

前一种是液滴中

水分的蒸发，

主要是热交换过程。

< p>
当进入降速干燥阶段后是颗粒的干

燥，

主要是扩散 过程。

物料离开干燥室时所含的水分与前一瞬时所接

触的空气的 相对湿度有关，

物料的最终产品水分不可能低于该相对湿

度下相 应的平衡水分。

产品的最终水分应受与其最后接触空气的相对

- 4-

离心喷雾使用说明书

湿度控制 ，

是扩散控制中的湿度梯度控制，

这三个控制阶段构成了喷

雾干燥过程。

The drying procedure of LPG spray dryer is the drying from atomized

slurry

to

powder directly

and the heat transfer

and

medium

transfer are

carried out at the same time. During drying, water evaporation of droplet

is in the process of heating exchange. When it is in lower speed granule

drying, it starts the process of diffusion. The water content of discharged

material

from

drying

chamber

is

related

to

the

previous

air

relative

humidity.

Final

moisture

of

material

must

not

lower

than

the

balance

moisture under relative humidity. Final moisture is controlled by the last

time

moisture

humidity

contacting

with

air

and

is

a

humidity

gradient

control

of

diffusion

control,

and

these

three

control

stages

constructed

spray drying process.

已经加热至需要温度的空气以切线方向进入热风分配器，

< p>
经热风

分配器作用后的空气均匀地、

螺旋式地进入 干燥室，

同时料液由雾化

器雾化为伞状细小的雾滴，

< p>
当雾滴与热空气混合接触后传热传质，

这

时高温气 流与高含水率的雾滴相遇，

水分迅速汽化。

干燥后产品从燥

室锥底进入风管随空气流入旋风除尘器

,

大 部分物料被分离，少量细

粉继续进入布袋除尘器被收集

,

最后尾气由排风机排出系统外。

Heating

air

to

required

temperature

and

entering

into

hot

air

distributor

in

a

tangent

direction,

and

then

evenly

goes

into

the

dryer

chamber

in

a

screw

type.

At

the

same

time

slurry

is

atomized

to

-5-

离心喷雾使用说明书

umbrella-type

fine

droplet

by

atomizer,

then

it

start

heat

and

medium

transfer

after

mixing

contact

between

droplet

and

hot

air.

At

the

same

time

high

temperature

air

flow

contact

with

high

moisture

droplet,

and

then

moisture

start

evaporating

quickly.

Dry

material

discharged

from

bottom cone goes into cyclone separator along with air flow in the duct

where most of material will be separated, a small amount of fine will be

further

collected

in

the

bag

filter

and

the

off-gas

will

be

discharged

by

exhaust fan.

本机组采用并流式喷雾干燥，

液滴与热风方向并流流动。

虽然热

风温度较 高，

但由于热风进入干燥室立即与雾化液滴接触，

干燥室内

温度急剧下降，

不会使被干燥物料过度受热，

特别适宜热敏性物料干

燥。排出产品的温度一般低于排风温度

10~20

℃左右。

This

set

of

equipment

is

in

a

concurrent

flow

spray

drying

which

slurry

and

hot

air

direction

will

flow

concurrently.

Although

hot

air

temperature is much high, because of the immediate contacting between

hot

air

in

the

chamber

and

atomized

droplet,

temperature

in

the

drying

chamber will decrease rapidly thus material will not be over heated, and

this is especially applicable for the drying of thermal sensitive material.

The

temperature

of

discharged

products

is

usually

10~20

℃

lower

than

air discharge temperature.

雾化器旋转方向与热风旋转方向相同，采用逆向旋转。

Rotary

speed

of

atomizer

has

the

same

direction

with

hot

air

-6-

离心喷雾使用说明书

rotation, both are reversal rotating.

3.

设备特点

Equipment Feature

本设备参照中华人民共和国机械行业标准

JB/T8714-1998

《离心

喷雾干燥机》的规范进行制造。

This

equipment

is

fabricated

according

to

Chinese

standard

JB/T8714-1998 of Centrifugal Spray Dryer.

干燥塔锥体角度设计成小于等于

60

°，锥体上安装有空气震击

器，< /p>

保证粉料流畅地滑落到底部，

避免粉料吸附在塔壁时间太长而产< /p>

生焦化或熔融现象。

Cone

angle

of

dryer

tower

is

designed

less

than

60

°

,

there

’

s

air

bumper

jars

on

the

cone

to

make

sure

powder

could

flow

to

bottom

smoothly thus avoid coking and fusion caused by long stick of powder to

the tower wall.

物料的适宜数据：适用于喷干含固率

20

％～

60

％的料液。

Applicable

data

of

material:

it

is

applicable

for

20

％～

60

％

solid

content slurry.

本机组所有与物料接触处均采用

SUS304

材料制作，

因此能保证

产品不受污染。

All

parts

contact

with

material

are

SUS304

to

avoid

products

contamination.

4.

干燥机组的安装

Equipment Installation

-7-

离心喷雾使用说明书

安装离心喷雾干燥机的地坪应平整坚实有强度。

Floor for centrifugal spray dryer installation should be flat and have

certain strength.

把干燥塔机组安装在所 需位置（按设计布置）

。

Install the drying tower to required place(according to design).

首先安装干燥塔，然后将 操作平台、护梯、风管、除尘器、过滤

器装置及风机等辅机就位连接，密封部位应装上硅 橡胶密封垫。

First

install

drying

tower,

and

then

install

auxiliaries

such

as

platform,

railing,

air

duct,

cyclone,

filter

and

fan,

sealing

parts

should

have silicon rubber sealing gasket.

电器控制柜应安装在便于操作和安全的位置。

Control

cabinet

should

be

installed

in

the

safety

location

easy

for

operation.

离心风机出口，

应根据车间情况，由使用厂配制管道，把排风口

引向室外，以减少车间内空气湿含量和 降低躁音，干燥机躁声值≤

90dB

（负载）

< br>。

Outlet of centrifugal fan should be arranged to the outdoor according

to

actual

workshop

situation

and

user

’

s

piping

to

reduce

the

workshop

moisture and noise, noise value of dryer should be

≤

90dB

（

loading

）

供料系统的安装：本机组采用变频调速泵供料（莫诺泵）

。泵可

根据操作需要安装在干燥塔的附近位置。

进料管可选用适当长度的软< /p>

橡胶管引入，

进料管管径由泵进料口大小确定，

< br>出料由料液泵出料管

-8-

离心喷雾使用说明书

引入雾化器进料管。

Installation of feeding system: this equipment feeding equipped with

frequency

control

pump(Mono

pump).

Pump

could

installed

near

drying tower according to operation requirement. Feeding pipe should be

rubber

hose

with

proper

length,

the

diameter

of

feeding

pipe

should

according to the feeding size of pump, discharged material goes into the

atomizer through discharge pipe of pump.

5.

离心喷雾干燥机操作程序

Operation Procedure of Spray Dryer

(1)

开车前的准备工作

Preparation before start-up

A

、

检查各连接件之间的密封性。

Check seals between each connection.

B

、

干燥塔观察清洗门是否关紧密封。

Check if the access door of drying tower is closed tightly or not.

C

、

接料装置与出料口之间密封是否完好。

Check

the

sealing

between

material

collecting

device

and

discharge.

D

、

离心风 机首先用手转动，

检查有无异常，

检查离心风机运转方

向是否正确，风机调风蝶阀有无打开。

First

check

the

centrifugal

fan

manually

to

see

if

is

ok

and

also

check it

’

s running direction and air regulation butterfly valve.

-9-

离心喷雾使用说明书

E

、

进料泵请按使用说明书上使用方法正确使用。

Feeding

pump

should

be

operated

according

to

its

operation

instruction.

F

、

雾化器 用手转动是否灵活，

并检查油标位置。

油面高度应不低

于油标最低刻度，不高于油面最高刻度。检查电机旋转方向是否

与喷头指 示的旋转方向一致。具体请查看雾化器使用说明书。

Run

the

atomizer

to

check

if

it

’

s

flexible

and

also

check

the

oil

level, the height of oil level should be no lower than the minimum scale

and no higher than the maximum scale. Check if the rotary direction has

the

same

direction

with

sprinkler

head.

For

details,

pls.

check

the

atomizer operation instruction.

注：机组系统内严禁有杂物。

Note: No foreign matter in the equipment.

(2)

开车运行

Start-up

开机顺序：引风机→进热风阀→雾化器→进料泵

Start-up procedure: exhaust

→

hot air inlet valve< /p>

→

atomizer

→

< br>feeding

pump.

注意事项：先设定进风温 度，当进风温度达到所需温度时，开启

离心雾化器，使其旋转，当转速正常后，先喷水， 使出口温度达到预

定排风温度，然后迅速转换为料液，料液调节必须由小逐渐加大，否< /p>

则易产生粘壁现象。

注意塔体出风温度不能超过

< br>100

℃

~120

℃

< p>
,

以防把

-10-

离心喷雾使用说明书

布袋除尘器中的布袋烧坏。

Attentions: set air inlet temperature first, when the inlet air reached to

required

temperature,

start

centrifugal

atomizer

and

rotate

it,

when

the

rotating speed goes into normal, spray water first to make sure the outlet

temperature reach to required air discharging temperature, then change to

slurry quickly. Slurry must be regulated from smaller to bigger to avoid

wall sticky. Outlet temperature of tower should not over 100

℃

~1 20

℃

to

avoid burning out of bags of bag filter.

喷雾正常

5

～

10

分钟，可从旋风收料器底部取出物料进 行数据分析。

Normal

spraying

should

be

5

～

10

minutes,

materials

discharged

from

cyclone could be analyzed.

(3)

停车

Stop running

停车顺序：停进料泵→停雾化器→停热风→停鼓风机→停引风机

注意事项：停车前，必须将物料喷完，然后换上清水进行喷雾，但需

保证出口温度不变。否则，

剩余在干燥塔内的物料含水量将改变。用

水大约

5

分钟，按停车顺序停车。

Stopping procedure: stop feeding pump

→

stop atomizer

→

stop inlet fan

→

stop exhaust fan

Attentions: all of material should be sprayed out before stopping, then

and spray again by water but make sure the outlet temperature should be

the same or the remained material in the tower would change its moisture.

-11-