LQY-30型移動強制式瀝青混凝土攪拌設備

（一）詳細技術說明

我廠研制和大批量生產的定型產品LQY-30型移動強制式瀝青混凝土攪拌設備是我廠LQY系列產品的一個型號產品，各項技術性能指標均經國內筑機專家委員會鑒定，結構穩固，各種技術文件包括圖紙、工藝文件齊全有效，可規范指導大批量生產。其中強制式產品在2002年獲得國家專利局授予的《實用新型專利證書》(專利號：ZL 02 2 19993.4)，這種組合結構受國家專利保護。

本設備采用間歇式烘干筒與雙臥軸強制攪拌器連為整體式，整機占地面積小，移場就位快捷，拆裝方便，安裝周期短，操作簡單，維護方便，性能穩定可靠，具有成品料品質好，整機技術含量高，自動化、標準化程度高等特點，目前已廣泛應用于高速公路路面養護及高等級瀝青路面的筑養護作業。

本設備由主機、成品料倉、自動計量配料站、電氣控制柜、控制室和磨煤送粉裝置（燃煤型）等構件組成。主機部分包括上殼體、瀝青計量輸送裝置、燃油或煤粉旋風燃燒爐、礦料提升輸送機、烘干筒、攪拌器、攪拌器上殼體、瀝青輸送計量、石粉計量輸送裝置、多管式除塵裝置、轉盤式拖掛系統、制動系統、液壓支撐腳等主要部件組成。

LQY-30型具體性能特點如下：

1、 主機可整體拖掛移動，安裝就位簡捷方便。

2、 攪拌器為雙臥軸強制式攪拌器，克服了單臥軸攪拌器存在的攪拌死角而使成品料質量較差的問題。本攪拌器為引進意大利的新技術，并采用國內制造設備和加工工藝生產的，具有雙臥軸結構形式，在拌和過程中使料在殼體內形成三維的強烈沸騰效應，同時料自身也進行不定軸的轉動，從而使各種料得到均勻快速的充分拌和。其中兩攪拌軸軸端密封技術使得設備生產穩定，攪拌臂、攪拌葉片、襯板等部件均選用高強度合金鋼材制造，使用壽命長。

3、 攪拌器下部卸料機構采用雙重開閉結構形式，可有效保證設備的下料功能。

4、 烘干筒部件

4.1筒體采用高強度合金結構鋼Q345（16Mn）制造而成，筒體結構穩定，制造工藝良好；

4.2具有葉片布置形式，使料在筒內形成強烈的軸向竄動，保證了料受熱均勻性，從而使成品料的質量大大提高。

5、 燃燒系統部分

5.1一種高技術含量的燃燒爐，結構新穎。本型燃燒爐的燃料適用范圍為煤粉和小煤塊。通過對爐門部分的錐體設計，進煤導流葉片角、二次風葉片角、二次風位置、點火器位置的優化設計，從而克服了一、二次風混合位置不穩定而影響燃料燃燒完全性的缺點，強化了煤粉的預燃和火焰根部燃燒的穩定性，并使爐內部氣粉流形成多環狀的邊界紊流回流結構，從而使燃燒得到強化，火焰溫度高，燃料消耗量下降，經濟效果顯著；

5.2配備自動點火裝置，高效節能，性能穩定可靠；

5.3燃燒爐爐膛內采用套裝成型耐火磚砌制，耐火磚采用400t的大型壓鑄機模壓而成，其材料的耐火性能和耐氣流沖刷性能均很高；

5.4本設備在供貨時，隨機另贈送一套成型耐火磚。耐火磚的更換方便快捷，可根據隨機安裝圖自行更換。

6、 瀝青計量輸送裝置和石粉計量輸送裝置均通過電子傳感器與可編程控制器進行自動控制計量，計量精度高，可靠性好；并且集中安裝于攪拌器上部，由專用鋼架護蓬加以防護，可適應不同施工環境的使用要求。

7、 除塵系統采用四錐管和大功率引風機除塵的結構形式，實現良好的旋風除塵效果，并且維護方便。

8、 自動計量配料站采用三斗計量方式，通過可編程控制器進行電子疊加計量，計量精度高，誤差小，用50型裝載機進行配套骨料供給作業。

9、 本設備廣泛應用先進的氣動系統對各結構部件進行集中控制，各啟動元件均采用國內知名品牌產品，性能穩定可靠，安全高效。隨機配備有一臺空氣壓縮機。

10、主要運動部件聯接處均采用工藝的迷宮式密封圈進行聯接，密封效果好。

11、各驅動部位、傳動部位使用的電動機、減速機、擺線針輪減速機等部件均采用國產知名品牌及正規廠家的配套產品，以確保本設備的技術性能指標，制造成本比同類產品使用普通品牌電動機、減速機、擺線針輪減速機等要高出許多。

12、大齒圈、托輪、導輪等回轉部件均采用球墨鑄鐵鑄造加工而成，以確保本設備的技術性能指標。

13、控制系統部分

    13.1采用日本三菱品牌的PLC可編程控制器、AD模塊及大屏幕可編程彩色顯示終端的結構設計形式；

    13.2稱重系統傳感器數據采集應用了具有專利技術的電流閉環回路設計，確保高溫環境及其它干擾源對系統的計量精度不會造成影響；

    13.3大屏幕可編程彩色顯示終端具有直觀明了的操作界面，操作人員可方便地通過觸摸屏幕上的對話框對設備運行的各項參數進行調整，并可即時監控設備運轉情況，內置的中文使用說明書可供操作人員即時閱讀參考；

    13.4PLC可編程控制器的輸出采用2A繼電器輸出，確保設備可靠工作；

    13.5采用模塊化設計的控制線路中的主要元件交流接觸器和熱繼電器均采用國際名牌瑞士ABB產品。

13.6電控控制柜關鍵元件均采用知名品牌西門子公司產品。

14、本設備配備精致的控制室，可為用戶提供舒適、寬敞的操作環境。控制室為可拆卸形式，操作人員在控制室中就可實現對設備運行的自動化集中控制，操作簡便。

（二）主要性能參數

1、 生產率           30t/h

2、 進料容積         0.9立方米

3、 進料重量         1250Kg

4、 出料溫度         120-170℃可調

5、 適用范圍         瀝青混凝土、瀝砂石、瀝青砂

6、 燃料消耗         燃煤：12-15kg/t  柴油：5-8kg/t

7、 烘干滾筒轉速     17.5 r/min

8、 配套總功率       120KW

其中

攪拌器功率        15KW×2

滾筒驅動功率      11KW

鼓風機功率        3 KW

通風除塵功率      15 KW

骨料提升功率      5.5 KW

瀝青泵功率        4 KW

加熱板            2KW×2

石粉提升功率      1.5KW

成品料提升功率    7.5 KW

礦料計量輸送功率  5.5 KW

空壓機功率        7.5 KW

磨煤送粉機功率    23.1 KW

柴油泵功率        0.55 KW

控制驅動方式      PLC可編程集中電氣控制

主機外形尺寸      長×寬×高=8.8×5.8×2.8

        整機重量          26t

LQY-30 mobile forced asphalt concrete mixing equipment

(1) Detailed technical description

Our factory developed and mass production of stereotyped products LQY-30 mobile forced asphalt concrete mixing equipment is a model of our factory LQY series products, the technical performance indicators have been identified by the domestic construction machine expert committee, the structure is stable, a variety of technical documents including drawings, process documents complete and effective, can standardize and guide mass production. Among them, the forced products were granted the "Utility model Patent Certificate" by the State Patent Office in 2002 (patent number: ZL 02 2 19993.4), and this combination structure is protected by the national patent.

The equipment adopts intermittent drying cylinder and double horizontal shaft forced agitator as a whole, the whole machine covers a small area, fast moving field, convenient disassembly and assembly, short installation cycle, simple operation, easy maintenance, stable and reliable performance, with good quality of finished materials, high technical content of the whole machine, high automation and standardization. At present, it has been widely used in highway pavement maintenance and high grade asphalt pavement construction and maintenance operations.

The equipment is composed of main machine, finished product bin, automatic metering dosing station, electrical control cabinet, control room and coal grinding and powder feeding device (coal-fired type). The main engine part includes the upper shell, asphalt metering and conveying device, fuel or pulverized coal cyclone combustion furnace, ore lifting conveyor, drying cylinder, agitator, the upper shell of the agitator, asphalt conveying and measuring device, stone powder metering and conveying device, multi-tube dust removal device, rotary disc towing system, braking system, hydraulic support foot and other main components.

LQY-30 specific performance characteristics are as follows:

1. The host can be towed and moved as a whole, and the installation is simple and convenient.

2. The mixer is a double horizontal shaft forced mixer, which overcomes the problem of poor quality of finished materials due to the dead mixing Angle existing in the single horizontal shaft mixer. The agitator is a new technology introduced from Italy, and is produced by domestic manufacturing equipment and processing technology. It has a double horizontal shaft structure, which makes the material form a three-dimensional strong boiling effect in the shell during the mixing process. At the same time, the material itself also rotates on an indefinite axis, so that all kinds of materials can be evenly and quickly mixed fully. The sealing technology of the two mixing shafts makes the production of the equipment stable, and the mixing arms, mixing blades, lining plates and other parts are made of high-strength alloy steel, which has a long service life.

3, the lower discharge mechanism of the mixer adopts a double open-close structure, which can effectively ensure the feeding function of the equipment.

4, drying cylinder parts

4.1 The cylinder is made of high-strength alloy structural steel Q345 (16Mn), the cylinder structure is stable, and the manufacturing process is good;

4.2 Blade arrangement form, so that the material in the cylinder to form a strong axial movement, to ensure the heat uniformity of the material, so that the quality of the finished material greatly improved.

5, combustion system part

5.1 A high-tech combustion furnace with novel structure. The fuel of this type of combustion furnace is applicable to pulverized coal and small coal. Through the cone design of the furnace door, the optimization design of the Angle of the coal inlet guide blade, the Angle of the secondary air blade, the position of the secondary air and the position of the igniter, the shortcomings of the unstable mixing position of the primary and secondary air affecting the complete combustion of the fuel are overcome, the stability of the pre-combustion of pulverized coal and the combustion at the root of the flame is strengthened, and the pulverized gas flow inside the furnace forms a multi-ring boundary turbulent reflux structure. Thus, the combustion is strengthened, the flame temperature is high, the fuel consumption is reduced, and the economic effect is remarkable.

5.2 Equipped with automatic ignition device, high efficiency and energy saving, stable and reliable performance;

5.3 The furnace is made of set shaped firebricks, which are moulded by 400t large die-casting machine. The material has high fire resistance and air erosion resistance.

5.4 When the equipment is supplied, a set of formed firebricks will be presented randomly. The replacement of firebrick is convenient and quick, and can be replaced by itself according to the random installation diagram.

6. Asphalt metering and conveying device and stone powder metering and conveying device are automatically controlled by electronic sensors and programmable controllers, with high metering accuracy and good reliability; And centralized installed in the upper part of the mixer, by the special steel frame protection, can adapt to the use of different construction environment requirements.

7, the dust removal system adopts the structure of four-cone tube and high-power induced draft fan dust removal, to achieve good cyclone dust removal effect, and easy maintenance.

8, automatic metering batching station using three bucket metering, through the programmable controller for electronic superposition measurement, high measurement accuracy, small error, with 50 loader supporting aggregate supply operations.

9, the equipment is widely used advanced pneumatic system for centralized control of the structural components, the starting components are made of domestic well-known brand products, stable and reliable performance, safe and efficient. It comes with an air compressor.

10, the main moving parts are connected with the process of labyrinth sealing ring, sealing effect is good.

11, the drive parts, transmission parts of the motor, reducer, cycloidal pin gear reducer and other parts are using domestic well-known brands and regular manufacturers of supporting products, to ensure the technical performance indicators of the equipment, manufacturing costs than similar products using ordinary brand motor, reducer, cycloidal pin gear reducer is much higher.

12, big gear ring, support wheel, guide wheel and other rotating parts are made of ductile iron casting processing, to ensure the technical performance indicators of the equipment.

13, control system part

13.1 The structural design form of PLC programmable controller, AD module and large-screen programmable color display terminal of Mitsubishi brand is adopted;

13.2 The current closed-loop design with patent technology is applied to the data acquisition of the weighing system sensor to ensure that the high temperature environment and other interference sources will not affect the measurement accuracy of the system;

13.3 The large-screen programmable color display terminal has an intuitive and clear operation interface. The operator can easily adjust the parameters of the equipment operation by touching the dialog box on the screen, and can monitor the operation of the equipment in real time. The built-in Chinese instruction manual is available for the operator to read for reference.

13.4 The output of PLC PLC adopts 2A relay output to ensure reliable operation of the equipment;

13.5 The main components of the modular design of the control line are AC contactors and thermal relays, which are made of ABB products.

13.6 The key components of the electric control cabinet are all products of well-known brands Siemens.

14, the equipment is equipped with exquisite control room, can provide users with a comfortable and spacious operating environment. The control room is removable, and the operator can realize the automatic centralized control of the operation of the equipment in the control room, and the operation is simple.

(2) Main performance parameters

1, productivity 30t/h

2. Feed volume 0.9 cubic meters

3. Feed weight 1250Kg

4, discharge temperature 120-170℃ adjustable

5, the scope of application asphalt concrete, leachite, asphalt sand

6, fuel consumption coal: 12-15kg/t diesel: 5-8kg/t

7, drying cylinder speed 17.5r /min

8, supporting total power 120KW

among

Stirrer power 15KW×2

The driving power of the drum is 11KW

Blower power 3 KW

Ventilation dust removal power 15 KW

Aggregate power increase 5.5KW

Asphalt pump power 4 KW

Heating plate 2KW x 2

The stone powder increases the power by 1.5KW

The finished material increases the power by 7.5KW

Ore metering transmission power 5.5KW

Air compressor power 7.5KW

Power of pulverizing machine is 23.1KW

Diesel pump power 0.55KW

Control drive mode PLC programmable centralized electrical control

Host dimensions length × width × height =8.8×5.8×2.8

The weight of the machine is 26t