CN107954585A - A kind of domestic sludge assists coal desiccation molding machine - Google Patents
A kind of domestic sludge assists coal desiccation molding machine Download PDFInfo
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- CN107954585A CN107954585A CN201711200879.4A CN201711200879A CN107954585A CN 107954585 A CN107954585 A CN 107954585A CN 201711200879 A CN201711200879 A CN 201711200879A CN 107954585 A CN107954585 A CN 107954585A
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- 239000010802 sludge Substances 0.000 title claims abstract description 97
- 239000003245 coal Substances 0.000 title claims abstract description 36
- 238000000465 moulding Methods 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims description 40
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 abstract 2
- 239000002817 coal dust Substances 0.000 abstract 1
- 230000003750 conditioning effect Effects 0.000 abstract 1
- 235000019645 odor Nutrition 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
技术领域technical field
本发明涉及生活污泥焚烧前处理技术领域，具体涉及一种生活污泥协煤干化成型装置。The invention relates to the technical field of domestic sludge incineration pretreatment, in particular to a domestic sludge co-coal drying forming device.
背景技术Background technique
随着人口的增长和人类对水的需求，产生了越来越多、越来越复杂的生活污水，污水经过生化法处置后产生的污泥组分也趋于多样化，如果得不到有效的处置，其中所含的寄生虫、病菌、臭气等有害成分将严重影响人类的生存环境。因此，污泥处置利用技术和装备的开发已经成为环境领域重要任务。焚烧处理是彻底解决污泥的最佳途径，但是由于污泥较高的含水率(约70％)导致焚烧效果不佳，因此污泥干化是解决问题的关键。污泥干化越彻底，焚烧处理时所需要的燃料更少，焚烧更彻底。常用干化方式主要有带式干燥和桨叶式干燥。带式干燥由于无法控制污泥堆积厚度而严重影响干化效果，桨叶式干燥器容易发生污泥黏附在传动轴上从而导致不正常操作，两种干燥方式所得的干燥产品形状、大小不易于控制，增加了焚烧过程中的加料难度。With the growth of population and human demand for water, more and more complex domestic sewage is produced, and the components of sludge produced after sewage treatment by biochemical methods tend to be diversified. Harmful ingredients such as parasites, germs, and odors contained in it will seriously affect the living environment of human beings. Therefore, the development of sludge disposal and utilization technology and equipment has become an important task in the environmental field. Incineration treatment is the best way to completely solve the sludge, but the incineration effect is not good due to the high moisture content (about 70%) of the sludge, so sludge drying is the key to solving the problem. The more thoroughly the sludge is dried, the less fuel is required for incineration, and the incineration is more thorough. Commonly used drying methods mainly include belt drying and paddle drying. Belt drying seriously affects the drying effect due to the inability to control the thickness of sludge accumulation. Paddle dryers are prone to sludge sticking to the drive shaft, resulting in abnormal operation. The shape and size of the dried products obtained by the two drying methods are not easy. control, increasing the difficulty of feeding in the incineration process.
专利201620398821.X，公开了一种污泥脱水干化成型装置，包括成型机、电机和干燥机；所述干燥机呈圆筒状，内部设有加热装置和旋转主轴，底部设有干燥机底座和加热装置；所述旋转主轴由电机带动，上面设有螺旋设置的送料叶片；在旋转主轴的上方设有进料口和排气管；所述排气管位于干燥机的右侧；在远离进料口的干燥机底部设有一个与成型机连接的送料板；所述成型机上设有液压装置、压板、出料口和控制器；所述成型机的底部设有一个液压推杆。专利200920039845.6，公开了一种污泥干化处理装置,特别涉及一种污泥干化成套处理装置,它包括带有进料口(4)、出料口(5)、进汽管(6)、出水管(7)、尾气出口(8)、筒体(9)、空心轴(10)和空心浆叶(11)的浆叶式污泥干燥机(1),空心浆叶(11)设置在空心轴(10)上,还包括有存储喂料装置(2)和尾气净化处理装置(3),所述的存储喂料装置(2)的出料口(12)与浆叶式污泥干燥机(1)的进料口(4)相连接,浆叶式污泥干燥机(1)的尾气出口(8)与尾气净化处理装置(3)的进气口(13)相连接。专利201720232159.5，公开了一种市政污泥快速干化成型装置，所述的装置包括污泥储蓄塔、蝶形阀、不锈钢管道一、干燥箱、超声波发生装置、搅拌器、控制面板、水分仪、滚轮、成型结构、不锈钢管道二、加热器、离心风机、开关，超声波发生装置使污泥内的结合水和泥分离，搅拌器使污泥水分均匀分布，通过离心风机使加热器的热风对污泥水分进行蒸发，以上结构实现了污泥的快速干化，通过滚轮、成型结构对污泥进行造型。Patent 201620398821.X discloses a sludge dehydration and drying molding device, including a molding machine, a motor, and a dryer; the dryer is cylindrical, with a heating device and a rotating spindle inside, and a dryer base at the bottom and a heating device; the rotating main shaft is driven by a motor, and there are feeding blades arranged in a spiral on it; a feed inlet and an exhaust pipe are arranged above the rotating main shaft; the exhaust pipe is located on the right side of the dryer; The bottom of the dryer at the feed inlet is provided with a feeding plate connected to the forming machine; the forming machine is provided with a hydraulic device, a pressing plate, a discharge port and a controller; the bottom of the forming machine is provided with a hydraulic push rod. Patent 200920039845.6 discloses a sludge drying treatment device, especially a complete set of sludge drying treatment device, which includes a feed port (4), a discharge port (5), a steam inlet pipe (6) , water outlet pipe (7), tail gas outlet (8), cylinder body (9), hollow shaft (10) and hollow paddle (11) paddle type sludge dryer (1), the hollow paddle (11) is set The hollow shaft (10) also includes a storage feeding device (2) and an exhaust gas purification treatment device (3). The outlet (12) of the storage feeding device (2) is connected to the paddle type sludge The feed inlet (4) of the dryer (1) is connected, and the tail gas outlet (8) of the paddle-type sludge dryer (1) is connected with the inlet (13) of the tail gas purification treatment device (3). Patent 201720232159.5 discloses a rapid drying and forming device for municipal sludge. The device includes a sludge storage tower, a butterfly valve, a stainless steel pipe, a drying box, an ultrasonic generator, an agitator, a control panel, a moisture meter, Roller, forming structure, stainless steel pipe 2, heater, centrifugal fan, switch, ultrasonic generating device to separate the combined water and mud in the sludge, agitator to evenly distribute the sludge moisture, and the centrifugal fan to make the hot air of the heater to the sewage The moisture in the mud evaporates, and the above structure realizes the rapid drying of the sludge, and the sludge is shaped by rollers and forming structures.
上述专利可以对污泥进行干燥除湿，干燥后的污泥内水分较低，将处理后的污泥用成型机固定成型，易于摆放和后期的加工处理；能实现污泥一体化处理，可广泛用于城市污泥处理。但是对于控制干燥产品形状、大小，降低焚烧过程中的加料难度并没有给出相应的技术方案。The above-mentioned patent can dry and dehumidify the sludge, and the moisture in the dried sludge is low, and the treated sludge is fixed and formed by a molding machine, which is easy to place and post-processing; it can realize the integrated treatment of sludge, and can Widely used in municipal sludge treatment. However, there is no corresponding technical solution for controlling the shape and size of the dried product and reducing the difficulty of feeding in the incineration process.
发明内容Contents of the invention
(一)解决的技术问题(1) Solved technical problems
本发明的为了克服上述现有技术的缺陷问题，本发明提供一种生活污泥协煤干化成型装置，通过污泥双螺旋进料装置、煤粉计量加料装置共同连接干燥器主体设备，干燥器主体设备内设置空心双螺旋螺杆以传递污泥和热量，干燥器主体设备可设置成夹套式外壳以增加换热面积，双螺旋螺杆的末端设置可升降的挡板以控制干燥室内的污泥量，干燥后的污泥透过挡板出料；不仅可以控制干燥产品形状、大小，降低焚烧过程中的加料难度，而且污泥焚烧处理时所需要的燃料更少，焚烧更加彻底。In order to overcome the defects of the above-mentioned prior art, the present invention provides a domestic sludge co-coal drying forming device, which is connected to the main body of the dryer through a sludge double-screw feeding device and a pulverized coal metering and feeding device. The main equipment of the dryer is equipped with hollow double-helix screws to transfer sludge and heat. The main equipment of the dryer can be set as a jacketed shell to increase the heat exchange area. The end of the double-helix screws is equipped with a liftable baffle to control the sewage in the drying chamber The amount of sludge, the dried sludge is discharged through the baffle; not only can the shape and size of the dried product be controlled, the difficulty of feeding materials during the incineration process can be reduced, and the sludge incineration requires less fuel, and the incineration is more thorough.
(二)技术方案(2) Technical solution
为实现以上目的，本发明通过以下技术方案予以实现：To achieve the above object, the present invention is achieved through the following technical solutions:
一种生活污泥协煤干化成型装置，包括污泥双螺旋加料装置、煤粉螺旋加料计量装置、真空泵接口、蒸汽接口、旋转接头、传动系统、单螺旋出料装置、污泥出口成型控制装置、干燥器主体设备，污泥双螺旋加料装置、煤粉螺旋加料装置分别通过法兰连接在干燥器主体设备的一端；真空泵接口从干燥器主体设备的上端开孔焊接管道后制成法兰与真空管道连接；蒸汽通过蒸汽接口与干燥器主体设备相连；干燥器主体设备内设置双螺旋螺杆，双螺旋螺杆通过旋转接头与传动系统相连；单螺旋出料装置通过与干燥器主体设备通过法兰连接，单螺旋出料装置与污泥出口成型控制装置相连接。A domestic sludge co-coal drying forming device, including a sludge double-screw feeding device, a coal powder screw feeding metering device, a vacuum pump interface, a steam interface, a rotary joint, a transmission system, a single-screw discharge device, and a sludge outlet forming control The device, the main equipment of the dryer, the sludge double-screw feeding device, and the pulverized coal screw feeding device are respectively connected to one end of the main equipment of the dryer through flanges; the vacuum pump interface is made into a flange after welding the pipe from the upper end of the main equipment of the dryer. It is connected to the vacuum pipeline; the steam is connected to the main equipment of the dryer through the steam interface; the main equipment of the dryer is equipped with a double-helix screw, and the double-helix screw is connected to the transmission system through a rotary joint; the single-screw discharge device passes through the main equipment of the dryer Blue connection, the single screw discharge device is connected with the sludge outlet forming control device.
进一步地，所述干燥器主体设备固定安装在支架上。Further, the main body equipment of the dryer is fixedly installed on the bracket.
进一步地，所述干燥器主体设备与支架以焊接的方式连接。Further, the main body of the dryer is connected to the bracket by welding.
进一步地，所述干燥器主体设备包括外壳和双螺旋螺杆，外壳设计为夹套加热，双螺旋螺杆为中空式螺杆，内部通入蒸汽进行传热。Further, the main equipment of the dryer includes a shell and a double-helix screw, the shell is designed as a jacket for heating, and the double-helix screw is a hollow screw, and steam is passed inside for heat transfer.
进一步地，所述双螺旋螺杆的末端设置可升降的挡板。Further, a liftable baffle is provided at the end of the double helix screw.
进一步地，所述干燥器主体设备上设有挡板控制器。Further, the main body of the dryer is provided with a baffle controller.
进一步地，所述双螺旋螺杆的一端设有冷凝水出口。Further, one end of the twin-helix screw is provided with a condensed water outlet.
进一步地，所述干燥器主体设备的上部设有检修口、视镜。Further, the upper part of the main body equipment of the dryer is provided with an inspection port and a sight glass.
进一步地，所述干燥器主体设备设置连接引风机的进风口。Further, the main body of the dryer is provided with an air inlet connected to an induced draft fan.
进一步地，所述污泥出口成型控制装置包括电机、减速机、螺旋输送器、支撑环、压环、刮刀、外壳、端板，所述电机通过减速机与螺旋输送器相连，螺旋输送器与支撑环、压环、端板、刮刀、压环依次连接，螺旋输送器与支撑环、压环、端板、刮刀的外部设有外壳。Further, the sludge outlet forming control device includes a motor, a reducer, a screw conveyor, a support ring, a pressure ring, a scraper, a shell, and an end plate. The motor is connected to the screw conveyor through a reducer, and the screw conveyor is connected to the screw conveyor. The supporting ring, the pressing ring, the end plate, the scraper and the pressing ring are connected in sequence, and the screw conveyor is provided with a casing outside the supporting ring, the pressing ring, the end plate and the scraper.
(三)有益效果(3) Beneficial effects
本发明的有益效果：一种生活污泥协煤干化成型装置，污泥双螺旋进料装置、煤粉螺旋加料装置、空心双螺旋螺杆、出料单螺旋螺杆以及旋转刮刀均由变频器控制，可根据处理量改变传动速度；通过调节污泥双螺旋进料装置和煤粉螺旋加料装置的转速以控制污泥和煤粉的配比；通过调节干燥器主体设备内空心双螺旋螺杆的转速以便控制污泥在干燥器主体设备的停留时间；干燥器主体设备设置连接引风机的进风口，保持干燥器内微负压状态，引风机将干燥产生的臭气集中后处置；通过不同开孔尺寸的端板用来控制污泥成型颗粒的粒径，通过旋转刮刀的转速控制污泥成型颗粒的长度；本发明不仅可以控制干燥产品形状、大小，降低焚烧过程中的加料难度，而且污泥焚烧处理时所需要的燃料更少，焚烧更加彻底。Beneficial effects of the present invention: a domestic sludge co-coal drying forming device, sludge double-screw feeding device, coal powder screw feeding device, hollow double-helix screw, discharging single-helix screw and rotary scraper are all controlled by frequency converters , the transmission speed can be changed according to the processing capacity; the ratio of sludge and coal powder can be controlled by adjusting the speed of the sludge double-screw feeding device and the coal powder screw feeding device; by adjusting the speed of the hollow double-helix screw in the main equipment of the dryer In order to control the residence time of the sludge in the main equipment of the dryer; the main equipment of the dryer is equipped with an air inlet connected to the induced draft fan to maintain a slight negative pressure state in the dryer, and the induced draft fan concentrates the odor generated by drying for disposal; through different openings The size of the end plate is used to control the particle size of the sludge forming particles, and the length of the sludge forming particles is controlled by the rotating speed of the rotary scraper; the invention can not only control the shape and size of the dried product, reduce the difficulty of feeding in the incineration process, but also the sludge Less fuel is required for incineration, and the incineration is more thorough.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1为本发明装置模型图；Fig. 1 is a device model diagram of the present invention;
图2为本发明装置结构示意图；Fig. 2 is the structural representation of device of the present invention;
图3为污泥出口成型控制装置装配图。Figure 3 is an assembly diagram of the sludge outlet forming control device.
相关元件符号说明：1、污泥双螺旋加料装置；2、煤粉螺旋加料计量装置；3、真空泵接口；4、蒸汽接口；5、旋转接头；6、传动系统；7、检修口；8、视镜；9、空心双螺旋螺杆；10、支架；11、冷凝水出口；12、单螺旋出料装置；13、污泥出口成型控制装置；14、挡板；15、空气过滤器；16、进风口；17、挡板控制器；18、电机；19、减速机；20、螺旋输送器；21、支撑环，22、压环；23、刮刀；24、外壳；25、干燥器主体设备；26、端板。Relevant component symbol description: 1. Sludge double screw feeding device; 2. Coal powder screw feeding metering device; 3. Vacuum pump interface; 4. Steam interface; 5. Rotary joint; 6. Transmission system; 7. Inspection port; 8. Sight glass; 9. Hollow double helix screw; 10. Bracket; 11. Condensed water outlet; 12. Single screw discharge device; 13. Sludge outlet forming control device; 14. Baffle plate; 15. Air filter; 16. Air inlet; 17. Baffle controller; 18. Motor; 19. Reducer; 20. Screw conveyor; 21. Support ring; 22. Pressure ring; 23. Scraper; 24. Shell; 25. Dryer main equipment; 26. End plate.
具体实施方式Detailed ways
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
结合图1、图2，一种生活污泥协煤干化成型装置，包括污泥双螺旋加料装置1、煤粉螺旋加料计量装置2、真空泵接口3、蒸汽接口4、旋转接头5、传动系统6、检修口7、视镜8、空心双螺旋螺杆9、支架10、冷凝水出口11、单螺旋出料装置12、污泥出口成型控制装置13、挡板14、空气过滤器15、进风口16、挡板控制器17、电机18、减速机19、螺旋输送器20、支撑环21、压环22、刮刀23、外壳24、干燥器主体设备25、端板26。Combining with Fig. 1 and Fig. 2, a domestic sludge co-coal drying forming device includes a sludge double-screw feeding device 1, a coal powder screw feeding and metering device 2, a vacuum pump interface 3, a steam interface 4, a rotary joint 5, and a transmission system 6. Inspection port 7, sight glass 8, hollow double helix screw 9, bracket 10, condensed water outlet 11, single screw discharge device 12, sludge outlet forming control device 13, baffle plate 14, air filter 15, air inlet 16. Baffle controller 17, motor 18, reducer 19, screw conveyor 20, support ring 21, pressure ring 22, scraper 23, shell 24, dryer main equipment 25, end plate 26.
污泥双螺旋加料装置1、煤粉螺旋加料装置2分别通过法兰连接在干燥器主体设备25的一端；真空泵接口3从干燥器主体设备25的上端开孔焊接管道后制成法兰与真空管道连接；蒸汽通过蒸汽接口4与干燥器主体设备25相连；干燥器主体设备25的上部设有检修口7、视镜8。干燥器主体设备25内设置空心双螺旋螺杆9以传递污泥和热量，干燥器主体设备可设置成夹套式外壳以增加换热面积，空心双螺旋螺杆9通过旋转接头5与传动系统6相连，空心双螺旋螺杆9的一端设有冷凝水出口11；干燥器主体设备25固定安装在支架10上，干燥器主体设备25与支架10可以以焊接的方式连接；单螺旋出料装置12通过与干燥器主体设备25通过法兰连接，单螺旋出料装置12与污泥出口成型控制装置13相连接。干燥器主体设备25设置连接引风机的进风口16，保持干燥器内微负压状态，引风机将干燥产生的臭气集中后处置。干燥器主体设备25设置有空气过滤器15。Sludge double screw feeding device 1 and pulverized coal screw feeding device 2 are respectively connected to one end of the main device 25 of the dryer through flanges; the vacuum pump interface 3 is welded with a pipe from the upper end of the main device 25 of the dryer to form a flange and a vacuum The pipeline is connected; the steam is connected with the main equipment 25 of the dryer through the steam interface 4; The main equipment 25 of the dryer is equipped with a hollow double-helix screw 9 to transfer sludge and heat. The main equipment of the dryer can be set as a jacketed shell to increase the heat exchange area. The hollow double-helix screw 9 is connected to the transmission system 6 through the rotary joint 5 , one end of the hollow double-helix screw 9 is provided with a condensed water outlet 11; the drier main equipment 25 is fixedly installed on the support 10, and the drier main equipment 25 and the support 10 can be connected by welding; The main body equipment 25 of the dryer is connected by flanges, and the single screw discharge device 12 is connected with the sludge outlet forming control device 13 . The main equipment 25 of the drier is provided with an air inlet 16 connected to the induced draft fan to maintain a slight negative pressure state in the drier, and the induced draft fan concentrates the odor generated by drying and then disposes of it. The dryer main unit 25 is provided with an air filter 15 .
干燥器主体设备25内设置的空心双螺旋螺杆9用以传递污泥和热量，干燥器主体设备可设置成夹套式结构以增加换热面积；空心双螺旋螺杆9的末端设置可升降的挡板14，用以控制干燥器主体设备内的污泥量，干燥器主体设备25上设有挡板控制器17，挡板控制器17用于调节挡板的位置。干燥后的污泥透过挡板14后进入单螺旋出料装置12，单螺旋出料装置12包括出料单螺旋螺杆、不同开孔尺寸的端板、旋转刮刀组成。The hollow twin-helix screw 9 set in the main equipment 25 of the dryer is used to transfer sludge and heat. The main equipment of the dryer can be set as a jacket structure to increase the heat exchange area; The plate 14 is used to control the amount of sludge in the main equipment of the drier, and the main equipment 25 of the drier is provided with a baffle controller 17, which is used to adjust the position of the baffle. The dried sludge enters the single-screw discharge device 12 after passing through the baffle plate 14. The single-screw discharge device 12 consists of a discharge single-screw screw, end plates with different hole sizes, and a rotary scraper.
结合图3污泥出口成型控制装置装配图，污泥出口成型控制装置13包括电机18、减速机19、螺旋输送器20、支撑环21、压环22、刮刀23、外壳24、端板26。电机18通过减速机19与螺旋输送器20相连，螺旋输送器20与支撑环21、压环22、端板26、刮刀23、压环22依次连接，螺旋输送器20与支撑环21、压环22、端板26、刮刀23的外部设有外壳24。3, the sludge outlet forming control device 13 includes a motor 18, a reducer 19, a screw conveyor 20, a support ring 21, a pressure ring 22, a scraper 23, a casing 24, and an end plate 26. The motor 18 is connected with the screw conveyor 20 through the reducer 19, the screw conveyor 20 is connected with the support ring 21, the pressure ring 22, the end plate 26, the scraper 23, and the pressure ring 22 in sequence, and the screw conveyor 20 is connected with the support ring 21, the pressure ring 22. A shell 24 is provided on the outside of the end plate 26 and the scraper 23 .
具体实施时，生活污泥协煤干化成型装置由进料系统、干化系统和挤出成型系统组成。进料系统包括污泥双螺旋进料装置和煤粉计量螺旋加料装置，污泥和粉煤灰通过加料系统连续输入干燥系统；干化系统为干燥器主体设备，主要由外壳和双螺旋螺杆组成，其中外壳设计为夹套加热、双螺旋螺杆为中空式螺杆，内部通入蒸汽进行传热，工作时由夹套和中空双螺旋螺杆同时传热，强化传热效果；挤出成型系统由单螺旋螺杆、不同开孔尺寸的端板、旋转刮刀组成，在干化系统干燥后的污泥通过污泥挡板后落入挤出成型系统，通过螺杆挤压使污泥成团往出口输送，在出口处设置开孔的端板，通过端板的孔径来控制出料的直径，通过调节旋转刮刀的转速来控制出料的长度。整个系统在负压下操作，干燥后脱除的水分和臭气收集后集中处理，可接入发电厂的尾气处理系统。During specific implementation, the domestic sludge co-coal drying forming device is composed of a feeding system, a drying system and an extrusion forming system. The feeding system includes a sludge double-screw feeding device and a coal powder metering screw feeding device. The sludge and fly ash are continuously input into the drying system through the feeding system; the drying system is the main equipment of the dryer, mainly composed of a shell and a double-helix screw. , in which the outer shell is designed as a jacket heating, the double-helix screw is a hollow screw, and steam is introduced into the interior for heat transfer. When working, the heat transfer is carried out by the jacket and the hollow double-helix screw at the same time to enhance the heat transfer effect; the extrusion molding system consists of a single Composed of helical screw, end plates with different hole sizes, and rotary scraper, the sludge dried in the drying system falls into the extrusion molding system after passing through the sludge baffle, and the sludge is formed into agglomerates and transported to the outlet through screw extrusion. A perforated end plate is set at the outlet, the diameter of the discharge is controlled by the aperture of the end plate, and the length of the discharge is controlled by adjusting the rotating speed of the rotary scraper. The entire system operates under negative pressure, and the moisture and odor removed after drying are collected and processed centrally, and can be connected to the tail gas treatment system of the power plant.
综上所述，本发明实施例，生活污泥协煤干化成型装置，污泥双螺旋进料装置、煤粉螺旋加料装置、空心双螺旋螺杆、出料单螺旋螺杆以及旋转刮刀均由变频器控制，可根据处理量改变传动速度；通过调节污泥双螺旋进料装置和煤粉螺旋加料装置的转速以控制污泥和煤粉的配比；通过调节干燥器主体设备内空心双螺旋螺杆的转速以便控制污泥在干燥器主体设备的停留时间；干燥器主体设备设置连接引风机的出风口，保持干燥室内微负压状态，引风机将干燥产生的臭气集中后处置；通过不同开孔尺寸的端板用来控制污泥成型颗粒的粒径，通过旋转刮刀的转速控制污泥成型颗粒的长度；本发明不仅可以控制干燥产品形状、大小，降低焚烧过程中的加料难度，而且污泥焚烧处理时所需要的燃料更少，焚烧更加彻底。In summary, in the embodiment of the present invention, the domestic sludge co-coal drying forming device, the sludge double-screw feeding device, the coal powder screw feeding device, the hollow double-helix screw, the discharging single-helix screw and the rotary scraper are all controlled by frequency conversion The transmission speed can be changed according to the processing capacity; the ratio of sludge and coal powder can be controlled by adjusting the speed of the sludge double-screw feeding device and the coal powder screw feeding device; by adjusting the hollow double-helix screw in the main equipment of the dryer In order to control the residence time of the sludge in the main equipment of the dryer; the main equipment of the dryer is equipped with an air outlet connected to the induced draft fan to maintain a slight negative pressure state in the drying room, and the induced draft fan concentrates the odor generated by drying for disposal; through different openings The end plate of the hole size is used to control the particle size of the sludge forming particles, and the length of the sludge forming particles is controlled by the rotating speed of the rotary scraper; the invention can not only control the shape and size of the dried product, reduce the difficulty of feeding in the incineration process, but also reduce the pollution Sludge incineration requires less fuel and incinerates more thoroughly.
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be described in the foregoing embodiments Modifications are made to the recorded technical solutions, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
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