WO2021114111A1 - 一种深度脱水污泥的输送系统 - Google Patents

一种深度脱水污泥的输送系统 Download PDF

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Publication number
WO2021114111A1
WO2021114111A1 PCT/CN2019/124407 CN2019124407W WO2021114111A1 WO 2021114111 A1 WO2021114111 A1 WO 2021114111A1 CN 2019124407 W CN2019124407 W CN 2019124407W WO 2021114111 A1 WO2021114111 A1 WO 2021114111A1
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Prior art keywords
sludge
screw conveyor
double
shaft screw
medium
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PCT/CN2019/124407
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English (en)
French (fr)
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骆文海
王勇涛
廖玄亮
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深圳市合众清洁能源研究院
深圳市能源环保有限公司
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Priority to PCT/CN2019/124407 priority Critical patent/WO2021114111A1/zh
Publication of WO2021114111A1 publication Critical patent/WO2021114111A1/zh

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    • 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
    • C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents

Definitions

  • the invention relates to a sludge treatment system of a municipal sewage plant, in particular to a conveying system for deeply dehydrated sludge.
  • the moisture content is generally 50% to 60%, and it is in the shape of a small block, loose structure, and no fluidity.
  • the use of pipeline transportation system to transport sludge to the treatment point is an important node to control sludge leakage and odor overflow.
  • the resistance loss along the pipeline is large, and the transportation pressure of the sludge pump is very high, resulting in Energy consumption and equipment cost remain high.
  • the existing deep dewatered sludge conveying system mainly includes sludge storage bins, feeding carriages, pre-mixed twin-shaft screw conveyors, and sludge conveying pumps.
  • a separate twin-shaft screw conveyor is set at the middle of the bottom of the sludge storage bin to directly bear the squeeze of the upper deep dehydrated sludge.
  • the pre-mixed twin-shaft screw conveyor is easily deformed under pressure and has a high failure rate; the deep dehydrated sludge is premixed
  • the double-shaft screw conveyor enters the bottom sludge transfer pump, and then the sludge transfer pump is transported to each terminal treatment system.
  • the existing problems include: many dead spots in the storage bin, bridging easily, poor feeding, etc.; at the same time, the screw conveyor is arranged in the middle of the sludge storage bin to directly bear the squeeze of the deep dehydrated sludge from the upper part.
  • the shaft screw conveyor is easily deformed under pressure, has a large amount of wear, and has a high failure rate; at the same time, purely using the sludge pump transportation method, energy consumption and equipment cost are high.
  • the present invention provides a deep dehydrated sludge conveying system.
  • a double-shaft screw conveyor By installing a double-shaft screw conveyor on the left and right sides of the bottom of the storage bin, the problem of blocking and bridging in the sludge storage bin is solved.
  • a set of pipeline resistance reduction system that lubricates the sludge transportation is added at the outlet of the sludge transportation pump, and the high-pressure plunger pump is used to inject the lubricating medium
  • the deep dehydrated sludge in the pipeline of the pipeline resistance reduction system is infiltrated to form a resistance reduction lubricating liquid film, which effectively reduces the resistance of the deep dehydrated sludge in the pipeline transportation process, so as to realize the deep dehydration of sewage. Long-distance transportation of mud.
  • the present invention provides a deep dehydrated sludge conveying system, including a sludge storage bin, a feeding carriage, a pre-mixed double-shaft screw conveyor, a sludge conveying pump, and a hydraulic station ,
  • the bottom of the sludge storage bin is provided with a first sludge outlet and a second sludge outlet, the first sludge outlet and the second sludge outlet are respectively provided on the left and right sides of the bottom of the sludge storage bin, It is characterized in that a first double-shaft screw conveyor, a second double-shaft screw conveyor, and a pipeline resistance reduction system for lubrication are also added.
  • the pre-mixed double-shaft screw conveyor has a first mud inlet and a second mud inlet. Mud inlet, the first mud inlet and the second mud inlet are respectively provided with a first mud down pipe and a second mud down pipe,
  • the first double-shaft screw conveyor and the second double-shaft screw conveyor are horizontally arranged on the left and right sides of the bottom of the sludge storage bin, and the upper inlet flange of the first double-shaft screw conveyor is connected to the bottom of the sludge storage bin.
  • the first mud outlet is connected, the lower outlet flange of the first double-shaft screw conveyor is connected to the first mud pipe, and the first mud pipe is connected to the first mud inlet of the pre-mixed double-shaft screw conveyor ⁇ ;
  • the upper inlet flange of the second twin-shaft screw conveyor is connected with the second sludge outlet at the bottom of the sludge storage bin,
  • the lower outlet flange of the second twin-shaft screw conveyor is connected with the second sludge pipe, and the second The mud pipe is connected to the second mud inlet of the pre-mixing double-shaft screw conveyor,
  • the pipeline resistance reduction system is composed of a medium storage bin, a medium high-pressure plunger pump, a low resistance tube and a medium pipeline.
  • the low resistance tube includes an outer tube and an inner tube, and the outer tube is sleeved outside the inner tube and The two ends are sealed, the outer tube wall and the inner tube wall form a medium containing space, the outer tube is provided with a medium inlet, the inner tube is provided with a medium nozzle, and both ends of the inner tube Equipped with a connecting flange,
  • the lubricating medium is stored in the medium storage bin. Under the action of the medium high-pressure plunger pump, the lubricating medium is transported from the medium storage bin to the medium inlet of the low resistance pipe through the medium pipeline by intermittently cooperating with the feeding of the sludge transfer pump , Then enter the medium containing space, and finally enter the inner tube through the medium nozzle,
  • the pre-mixing sludge outlet of the pre-mixing twin-shaft screw conveyor is connected to the inlet of the sludge transfer pump, and the outlet pipe of the sludge transfer pump passes through the flange and the inner pipe of the low resistance pipe of the pipeline drag reduction system Connected,
  • the deeply dehydrated sludge is stored in the sludge storage bin.
  • the sludge enters the first double-shaft screw conveyor from the first and second sludge outlets at the bottom of the sludge storage bin respectively.
  • the second double-shaft screw conveyor and then enter the first mud inlet and the second mud inlet of the pre-mixed double-shaft screw conveyor through the first and second down pipes respectively, and then pass through the pre-mixed double-shaft screw After premixing, the conveyor enters the sludge transfer pump.
  • the sludge transfer pump pumps the sludge intermittently, which is lubricated after passing through the inner tube of the low-resistance tube, so as to realize the long-distance transportation of deep dehydrated sludge.
  • the pre-mixing double-shaft screw conveyor is also provided with a batching port, which is used as a material inlet for blending calorific value.
  • the preferred solution of the present invention is that the inner tube volume of the low resistance tube is equal to the displacement of the sludge pump.
  • the preferred solution of the present invention is that the spiral blades of the pre-mixing screw conveyor add mixing blades and passivate the blade edges.
  • the operation of the pre-mixing double-shaft screw conveyor can realize the damage and damage to the deeply dewatered sludge. Mixing and forming a certain pre-pressure at the pre-mixing mud outlet of the pre-mixing double-shaft screw conveyor.
  • the preferred solution of the present invention is that the sludge transfer pump uses a single-cylinder hydraulic plunger pump.
  • the preferred solution of the present invention is that the medium nozzle is an oil injection nozzle, and the medium in the medium containing space can enter the inner pipe one-way through the medium nozzle to lubricate the sludge, and the sludge in the inner pipe is It cannot flow into the medium accommodating space in the reverse direction.
  • the preferred solution of the present invention is that the feeding carriage, the first double-shaft screw conveyor, the second double-shaft screw conveyor, the pre-mixing screw conveyor, the sludge conveying pump and the medium high-pressure plunger pump are all provided by the Driven by hydraulic station.
  • the preferred solution of the present invention is that mud guards are respectively provided above the entrances of the first double-shaft screw conveyor and the second double-shaft screw conveyor, and the mud guards are installed and fixed in the sludge storage bin. On the side walls.
  • the preferred solution of the present invention is that the bottom of the sludge storage bin is also provided with a multi-point weighing sensor, and the multi-point weighing sensor transmits signals to the first double screw conveyor, the second double screw conveyor, and the pre-heater. Mixing screw conveyor and sludge pump.
  • the present invention provides a deep dehydrated sludge conveying system, by installing a double-shaft screw conveyor on the left and right sides of the bottom of the storage bin, solving the problem of blockage and bridging of the sludge storage bin At the same time, it can effectively prevent the formation of dead angles during the movement of the carriage, and at the outlet of the sludge transportation pump, a set of pipeline resistance reduction system that lubricates the sludge transportation is added, and the high-pressure plunger pump is used to lubricate the medium.
  • Figures 1 to 4 are schematic diagrams of the structure of the first embodiment of the present invention.
  • Fig. 1 is a schematic diagram of the overall structure
  • Figs. 2 and 3 are schematic diagrams of a partial structure
  • Fig. 4 is an enlarged schematic diagram of a partial structure.
  • the first twin-shaft screw conveyor 3A1 upper inlet flange, 3A2 lower outlet flange, 3B first mud pipe,
  • Figures 1 to 4 are schematic diagrams of the structure of the first embodiment of the present invention.
  • Fig. 1 is a schematic diagram of the overall structure
  • Figs. 2 and 3 are schematic diagrams of a partial structure
  • Fig. 4 is an enlarged schematic diagram of a partial structure.
  • a deep dehydrated sludge conveying system includes a sludge storage bin 1, a feeding carriage 2, a pre-mixed double-shaft screw conveyor 5, a sludge conveying pump 6 and a hydraulic station 7, and the sewage
  • the left and right sides of the bottom of the mud storage bin 1 are respectively provided with a first mud outlet 1A1 and a second mud outlet 1A2.
  • first double-shaft screw conveyor 3 and a second The double-shaft screw conveyor 4 the pipeline drag reduction system 8 for lubrication
  • the pre-mixed double-shaft screw conveyor 5 has a first mud inlet 5.11 and a second mud inlet 5.12, in the first mud inlet 5.11 and second mud inlet 5.11
  • the mud inlet 5.12 is also provided with a first mud pipe 3B and a second mud pipe 4B,
  • the first double-shaft screw conveyor 3 and the second double-shaft screw conveyor 4 are horizontally arranged on the left and right sides of the bottom of the sludge storage bin 1.
  • the upper inlet flange 3A1 of the first double-shaft screw conveyor 3 is connected with the first sludge outlet 1A1 at the bottom of the sludge storage bin 1, and the lower outlet flange 3A2 of the first double-shaft screw conveyor 3 is connected with the first sludge pipe 3B connection, the first mud pipe 3B is connected to the first mud inlet 5.11 of the pre-mixed double-shaft screw conveyor 5; the upper inlet flange 4A1 of the second double-shaft screw conveyor 4 and the sludge storage silo 1
  • the second mud outlet 1A2 at the bottom is connected, and the lower outlet flange 4A2 of the second double-shaft screw conveyor 4 is connected to the second mud pipe 4B, and the second mud pipe 4B is connected to the pre-mixed double-s
  • the pre-mixing sludge outlet 5.2 of the pre-mixing twin-shaft screw conveyor 5 is connected to the inlet of the sludge transfer pump 6, and the outlet pipe 6.1 of the sludge transfer pump 6 passes through the inner pipe 8.3 of the flange and the low resistance pipe 8.3 B is connected,
  • the sludge is stored in the deep dehydrated sludge storage bin 1.
  • the sludge enters the first double-shaft screw from the first sludge outlet 1A1 and the second sludge outlet 1A2 at the bottom of the storage bin 1 respectively
  • the conveyor 3 and the second twin-shaft screw conveyor 4 enter the first mud inlet 5.11 and the second mud inlet 5.12 of the pre-mixed twin-shaft screw conveyor 5 through the drop pipes 3B and 4B respectively.
  • the shaft screw conveyor 5 enters the sludge transfer pump 6 after pre-mixing, and the sludge transfer pump 6 pumps the sludge intermittently. After passing through the inner pipe 8.3B of the low resistance pipe 8.3, it is lubricated, so as to realize the lengthening of the deep dehydrated sludge. Distance transport.
  • the figure shows that the pipeline resistance reduction system 8 consists of a medium storage tank 8.1, a medium high-pressure plunger pump 8.2, a low resistance pipe 8.3 and a medium pipe 8.4.
  • the low resistance pipe 8.3 includes an outer pipe 8.3A and an inner pipe 8.3B, and an outer pipe 8.3 A is sleeved outside the inner tube 8.3B and sealed at both ends.
  • the outer tube 8.3A and the inner tube 8.3B form a medium containing space 8.3D that contains the medium.
  • the outer tube 8.3A is provided with a medium inlet 8.3A1
  • One-way nozzle 8.3C is provided on the wall of the inner tube 8.3B, and the two ends of the inner tube 8.3B are provided with connecting flanges 8.3B1 and 8.3B2;
  • the lubricating medium is stored in the medium storage bin 8.1. Under the action of the medium high-pressure plunger pump 8.2, it is intermittently matched with the feeding of the sludge transfer pump 6 (the high-pressure plunger pump 8.2 and the sludge transfer pump 6 are both plunger pumps), The lubricating medium is transported from the medium storage bin 8.1 through the medium pipe 8.4 to the medium inlet 8.3A1 of the low resistance pipe 8.3, then enters the medium containing space 8.3D, and finally enters the inner pipe 8.3B through the medium nozzle 8.3C.
  • a batching port 5.3 is also provided in the pre-mixing double-shaft screw conveyor 5, and the batching port 5.3 is used as a material inlet for blending calorific value.
  • the spiral blades of the pre-mixing screw conveyor add mixing blades and passivate the blade edges.
  • the operation of the pre-mixing double-shaft screw conveyor can realize the damage, mixing and mixing of the deep dewatered sludge.
  • a certain pre-pressure is formed at the outlet of the pre-mixing double-shaft screw conveyor.
  • the sludge transfer pump uses a single-cylinder hydraulic plunger pump.
  • the medium nozzle is an oil injection nozzle
  • the lubricating medium can pass through the medium nozzle 8.3C from the medium containing space 8.3D into the inner pipe 8.3B in one direction to lubricate the sludge, while the sludge in the inner pipe 8.3B cannot be reversed. It flows into the medium accommodating space 8.3D through the medium nozzle 8.3C.
  • the feeding carriage 2, the first double screw conveyor 3, the second double screw conveyor 4, the premix screw conveyor 5 and the sludge transfer pump 6 are driven by the hydraulic station 7.
  • a first fender 1B1 and a second fender 1B2 are respectively provided above the entrances of the first twin-shaft screw conveyor 3 and the second twin-shaft screw conveyor 4, and the fenders are installed and fixed on the sludge.
  • the side wall of the storage bin 1 and the mud guard can reduce the pressure generated by the deep dehydrated sludge in the sludge storage bin 1 directly pressing on the first double-shaft screw conveyor 3 and the second double-shaft screw conveyor 4.
  • the lubricating medium can use waste oil as a lubricant to realize comprehensive utilization of resources.
  • the bottom of the sludge storage bin 1 is also provided with a multi-point weighing sensor, and the multi-point weighing sensor transmits signals to the first double screw conveyor 3 and the second double screw respectively.
  • the signal of the multi-point weighing sensor is fed back to the first double screw conveyor 3, the second double screw conveyor 4, the pre-mixed double screw conveyor 5 and the sludge transfer pump 6, so as to flexibly adjust the conveying volume of the material.

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  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
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Abstract

一种深度脱水污泥的输送系统，通过在污泥储仓（1）底部左右两侧各安装一台双轴螺旋输送机（3,4），解决了污泥储仓（1）堵料架桥的问题，同时还能有效地防止在喂料滑架（2）移动过程中死角的形成，而且在污泥输送泵（6）出口处还增加一套对污泥输送起润滑作用的管道降阻系统（8），利用介质高压柱塞泵（8.2）将润滑介质注入到管道降阻系统（8）中，对管道降阻系统（8）介质管道（8.4）内的深度脱水污泥进行浸润，形成降阻润滑液膜，有效降低深度脱水污泥在管道输送的过程中产生的阻力，从而实现深度脱水污泥的长距离输送，而且，润滑介质可以利用废弃的油料充当润滑剂，实现资源的综合利用。

Description

一种深度脱水污泥的输送系统 技术领域
本发明涉及城市污水厂的污泥处理系统，尤其涉及一种深度脱水污泥的输送系统。
背景技术
城市污水处理厂污泥经板框压滤装置深度脱水后，含水率一般在50％～60％，它整体呈细块状，松散结构，无流动性。采用管道输送系统将污泥输送至处理点是控制污泥泄露、臭气外溢的重要节点，但由于污泥流动性差，管道沿程阻力损失大，对于污泥泵的输送压力要求很高，导致能耗和设备造价高居不下。
现有深度脱水污泥输送系统，主要包括有污泥储仓、喂料滑架、预混合双轴螺旋输送机、污泥输送泵。在污泥储仓底部中间位置单独设置双轴螺旋输送机，直接承受上部深度脱水污泥的挤压，预混合双轴螺旋输送机易受压变形，故障率高；深度脱水污泥经预混合双轴螺旋输送机进入底部污泥输送泵，再由污泥输送泵输送至各个终端处理系统。其存在的问题包括：储仓内堆积死角多、容易出现架桥、喂料不畅等；同时，螺旋输送机布置在污泥储仓中间位置，直接承受上部深度脱水污泥的挤压，双轴螺旋输送机易受压变形，磨损量大、故障率高；同时，单纯采用污泥泵输送方式，能耗及设备造价高。
发明内容
为了解决现有问题，本发明提供一种深度脱水污泥的输送系统，通过在储仓底部左右两侧各安装一台双轴螺旋输送机，解决了污泥储仓堵料架桥的问题，同时还能有效地防止在滑架移动过程中死角的形成，而且在污泥输送泵出口处还增加一套对污泥输送起润滑作用的管道降阻系统，利用高压柱塞泵将润滑介质注入到管道降阻系统中，对管道降阻系统管道内的深度脱水污泥进行浸润，形成降阻润滑液膜，有效降低深度脱水污泥在管道输送的过程中产生的阻力，从而实现深度脱水污泥的长距离输送。
本发明解决技术问题采用的技术方案是，本发明提供了一种深度脱水污泥输送系统，包括污泥储仓、喂料滑架、预混合双轴螺旋输送机、污泥输送泵以及液压站，所述污泥储仓底部设置有第一出泥口及第二出泥口，所述第一出泥口及第二出泥口分别设置在所述污泥储仓底部的左右两侧，其特征是，还增加第一双轴螺旋输送机、第二双轴螺旋输送机及起润滑作用的管道降阻系统，所述预混合双轴螺旋输送机具有第一进泥口及第二进泥口，所述第一进泥口及第二进泥口上还分别设置第一落泥管及第二落泥管，
所述第一双轴螺旋输送机、第二双轴螺旋输送机呈水平状态设置在污泥储仓底部的左右两侧，第一双轴螺旋输送机的上部入口法兰与污泥储仓底部的第一出泥口连接、第一双轴螺旋输送机的下部出口法兰与第一落泥管连接，第一落泥管接入到所述预混合双轴螺旋输送机的第一进泥口；第二双轴螺旋输送机的上部入口法兰与污泥储仓底部的第二出泥口连接、第二双轴螺旋输送机的下部出口法兰与第二落泥管连接，第二落泥管接入到所述预混合双轴螺旋输送机的第二进泥口，
所述管道降阻系统由介质储仓、介质高压柱塞泵、低阻力管以及介质管道组成，所述低阻力管包括外管及内管，所述外管套接在所述内管外面并且两端密封，所述外管管壁与内管管壁之间构成介质容纳空 间，所述外管上设置有介质入口，所述内管的管壁上设置有介质喷嘴，内管的两端设置有连接法兰，
润滑介质存放于所述介质储存仓中，在所述介质高压柱塞泵作用下，通过间断性配合污泥输送泵的送料，润滑介质从介质储存仓经介质管道输送至低阻力管的介质入口、然后进入介质容纳空间、最后经介质喷嘴进入内管，
所述预混合双轴螺旋输送机的预混合出泥口接入所述污泥输送泵的入口，污泥输送泵的出口管道通过法兰与所述管道降阻系统的低阻力管的内管相连，
深度脱水污泥存放于污泥储仓中，在喂料滑架的驱动下，污泥从污泥储仓底部的第一出泥口、第二出泥口分别进入第一双轴螺旋输送机、第二双轴螺旋输送机，然后分别经第一落泥管及第二落泥管进入预混合双轴螺旋输送机的第一进泥口及第二进泥口，经预混合双轴螺旋输送机预混合之后进入污泥输送泵，污泥输送泵将污泥间断性泵出，经低阻力管的内管之后得到润滑，从而实现深度脱水污泥的长距离输送，
所述预混合双轴螺旋输送机还设置一个配料口，所述配料口作为调配热值的物料接入口。
本发明的优选方案是，所述低阻力管的内管体积与所述污泥泵的排量相等。
本发明的优选方案是，所述预混合螺旋输送机的螺旋叶片增加搅拌刀头，并对叶片刃口钝化，可以通过预混合双轴螺旋输送机的运转实现对深度脱水污泥的破损及混合，并在所述预混合双轴螺旋输送机的预混合出泥口形成一定预压力。
本发明的优选方案是，所述污泥输送泵使用单缸液压柱塞泵。
本发明的优选方案是，所述介质喷嘴为注油油嘴，介质容纳空间中的介质可以经所述介质喷嘴单向进入所述内管对污泥进行润滑，而所述内管中的污泥则不能反向流入所述介质容纳空间。
本发明的优选方案是，所述喂料滑架、第一双轴螺旋输送机、第二双轴螺旋输送机、预混合螺旋输送机、污泥输送泵及介质高压柱塞泵均由所述液压站驱动。
本发明的优选方案是，在所述第一双轴螺旋输送机、第二双轴螺旋输送机的入口上方分别各设置有挡泥板，所述挡泥板安装固定在所述污泥储仓的侧壁上。
本发明的优选方案是，所述污泥储仓底部还设置有多点称重传感器，所述多点称重传感器将信号分别传递给第一双螺旋输送机、第二双螺旋输送机、预混合螺旋输送机及污泥输送泵。
本发明的有益效果是：本发明提供一种深度脱水污泥的输送系统，通过在储仓底部左右两侧各安装一台双轴螺旋输送机，解决了污泥储仓堵料架桥的问题，同时还能有效地防止在滑架移动过程中死角的形成，而且在污泥输送泵出口处还增加一套对污泥输送起润滑作用的管道降阻系统，利用高压柱塞泵将润滑介质注入到管道降阻系统中，对管道降阻系统管道内的深度脱水污泥进行浸润，形成降阻润滑液膜，有效降低深度脱水污泥在管道输送的过程中产生的阻力，从而实现深度脱水污泥的长距离输送。
附图说明：
图1-图4为本发明第一个实施例的结构示意图。其中，图1为整体结构示意图，图2、图3为局部结 构示意图，图4为局部结构放大示意图。
图中：
1.污泥储仓，1A1第一出泥口、1A2第二出泥口、1B1第一挡泥板、1B2第二挡泥板，
2.喂料滑架，
3.第一双轴螺旋输送机，3A1上部入口法兰，3A2下部出口法兰，3B第一落泥管，
4.第二双轴螺旋输送机，4A1上部入口法兰，4A2下部出口法兰，4B第二落泥管，
5.预混合双轴螺旋输送机，5.11第一进泥口，5.12第二进泥口，5.2预混合出泥口，5.3配料口，
6.污泥输送泵，6.1污泥输送泵出口管道，6.2污泥长距离输送管道，
7.液压站，
8.管道降阻系统，
8.1介质储仓，
8.2介质高压柱塞泵，
8.3低阻力管，8.3A外管，8.3A1介质入口，8.3B内管，8.3B1、8.3B2法兰，8.3C介质喷嘴；8.3D介质容纳空间，
8.4介质管道。
具体实施方式
图1-图4为本发明第一个实施例的结构示意图。其中，图1为整体结构示意图，图2、图3为局部结构示意图，图4为局部结构放大示意图。
图中显示，本例中，一种深度脱水污泥输送系统，包括污泥储仓1、喂料滑架2、预混合双轴螺旋输送机5、污泥输送泵6及液压站7，污泥储仓1底部的左右两侧分别设置第一出泥口1A1及第二出泥口1A2，与现有技术不同的是，本例中，还增加第一双轴螺旋输送机3、第二双轴螺旋输送机4、起润滑作用的管道降阻系统8，预混合双轴螺旋输送机5具有第一进泥口5.11及第二进泥口5.12，在第一进泥口5.11及第二进泥口5.12上还分别设置第一落泥管3B及第二落泥管4B，
第一双轴螺旋输送机3、第二双轴螺旋输送机4呈水平状态设置在污泥储仓1底部的左右两侧。第一双轴螺旋输送机3的上部入口法兰3A1与污泥储仓1底部的第一出泥口1A1连接、第一双轴螺旋输送机3的下部出口法兰3A2与第一落泥管3B连接，第一落泥管3B接入到所述预混合双轴螺旋输送机5的第一进泥口5.11；第二双轴螺旋输送机4的上部入口法兰4A1与污泥储仓1底部的第二出泥口1A2连接、第二双轴螺旋输送机4的下部出口法兰4A2与第二落泥管4B连接，第二落泥管4B接入到所述预混合双轴螺旋输送机5的第二进泥口5.12；
所述预混合双轴螺旋输送机5的预混合出泥口5.2接入所述污泥输送泵6的入口，污泥输送泵6的出口管道6.1通过法兰与低阻力管8.3的内管8.3B相连，
污泥存放于深度脱水污泥的储存仓1中，喂料滑架2运行时，污泥从储存仓1底部的第一出泥口1A1、第二出泥口1A2分别进入第一双轴螺旋输送机3、第二双轴螺旋输送机4，然后分别经落泥管3B及4B进入预混合双轴螺旋输送机5的第一进泥口5.11、第二进泥口5.12，经预混合双轴螺旋输送机5预混合之后进入污泥输送泵6，污泥输送泵6将污泥间断性泵出，经低阻力管8.3的内管8.3B之后得到润滑，从而实现深度脱水污泥的长距离输送。
图中显示，管道降阻系统8由介质储仓8.1、介质高压柱塞泵8.2，低阻力管8.3以及介质管道8.4组成，低阻力管8.3包括外管8.3A及内管8.3B，外管8.3A套接在内管8.3B外面并且两端密封，外管8.3A管壁与内管8.3B管壁之间构成容纳介质的介质容纳空间8.3D，外管8.3A上设置有介质入口8.3A1，内管8.3B的管壁上设置有单向喷嘴8.3C，内管8.3B的两端设置有连接法兰8.3B1及8.3B2；
润滑介质存放于介质储存仓8.1中，在介质高压柱塞泵8.2作用下，通过间断性配合污泥输送泵6的送料(高压柱塞泵8.2及污泥输送泵6均为柱塞泵)，润滑介质从介质储存仓8.1经介质管道8.4输送至低阻力管8.3的介质入口8.3A1、然后进入介质容纳空间8.3D、最后经介质喷嘴8.3C进入内管8.3B。
本例中，在预混合双轴螺旋输送机5还设置一个配料口5.3，所述配料口5.3作为调配热值的物料接入口。
本例中，所述预混合螺旋输送机的螺旋叶片增加搅拌刀头，并对叶片刃口钝化，可以通过预混合双轴螺旋输送机的运转实现对深度脱水污泥的破损、混合，并在所述预混合双轴螺旋输送机的出口形成一定预压力。
本例中，污泥输送泵使用单缸液压柱塞泵。
本例中，所述介质喷嘴为注油油嘴，润滑介质可以单向经介质喷嘴8.3C由介质容纳空间8.3D进入内管8.3B对污泥进行润滑而内管8.3B中的污泥则不能反向经介质喷嘴8.3C流入介质容纳空间8.3D。
本例中，喂料滑架2、第一双螺旋输送机3、第二双螺旋输送机4、预混合螺旋输送机5及污泥输送泵6由液压站7驱动。
本例中，第一双轴螺旋输送机3、第二双轴螺旋输送机4的入口上方分别各设置有第一挡泥板1B1、第二挡泥板1B2，挡泥板安装固定在污泥储仓1的侧壁，挡泥板可以减轻污泥储仓1中的深度脱水污泥直接压在第一双轴螺旋输送机3及第二双轴螺旋输送机4上产生的压力。
本发明提示，本例中，润滑介质可以利用废弃的油料充当润滑剂，实现资源的综合利用。
本发明提示，在其它实施例中，所述污泥储仓1底部还设置多点称重传感器，所述多点称重传感器将信号分别传递给第一双螺旋输送机3、第二双螺旋输送机4、预混合双轴螺旋输送机5及污泥输送泵6。多点称重传感器的信号反馈给第一双螺旋输送机3、第二双螺旋输送机4、预混合双轴螺旋输送机5及污泥输送泵6，以便灵活调整物料的输送量。

Claims (8)

  1. 一种深度脱水污泥输送系统，包括污泥储仓、喂料滑架、预混合双轴螺旋输送机、污泥输送泵以及液压站，所述污泥储仓底部设置有第一出泥口及第二出泥口，所述第一出泥口及第二出泥口分别设置在所述污泥储仓底部的左右两侧，其特征是，还增加第一双轴螺旋输送机、第二双轴螺旋输送机及起润滑作用的管道降阻系统，所述预混合双轴螺旋输送机具有第一进泥口及第二进泥口，所述第一进泥口及第二进泥口上还分别设置第一落泥管及第二落泥管
    所述第一双轴螺旋输送机、第二双轴螺旋输送机呈水平状态设置在污泥储仓底部的左右两侧，第一双轴螺旋输送机的上部入口法兰与污泥储仓底部的第一出泥口连接、第一双轴螺旋输送机的下部出口法兰与第一落泥管连接，第一落泥管接入到所述预混合双轴螺旋输送机的第一进泥口；第二双轴螺旋输送机的上部入口法兰与污泥储仓底部的第二出泥口连接、第二双轴螺旋输送机的下部出口法兰与第二落泥管连接，第二落泥管接入到所述预混合双轴螺旋输送机的第二进泥口，
    所述管道降阻系统由介质储仓、介质高压柱塞泵、低阻力管以及介质管道组成，所述低阻力管包括外管及内管，所述外管套接在所述内管外面并且两端密封，所述外管管壁与内管管壁之间构成介质容纳空间，所述外管上设置有介质入口，所述内管的管壁上设置有介质喷嘴，内管的两端设置有连接法兰，
    润滑介质存放于所述介质储存仓中，在所述介质高压柱塞泵作用下，通过间断性配合污泥输送泵的送料，润滑介质从介质储存仓经介质管道输送至低阻力管的介质入口、然后进入介质容纳空间、最后经介质喷嘴进入内管，
    所述预混合双轴螺旋输送机的预混合出泥口接入所述污泥输送泵的入口，污泥输送泵的出口管道通过法兰与所述管道降阻系统的低阻力管的内管相连，
    深度脱水污泥存放于污泥储仓中，在喂料滑架的驱动下，污泥从污泥储仓底部的第一出泥口、第二出泥口分别进入第一双轴螺旋输送机、第二双轴螺旋输送机，然后分别经第一落泥管及第二落泥管进入预混合双轴螺旋输送机的第一进泥口及第二进泥口，经预混合双轴螺旋输送机预混合之后进入污泥输送泵，污泥输送泵将污泥间断性泵出，经低阻力管的内管之后得到润滑，从而实现深度脱水污泥的长距离输送，
    所述预混合双轴螺旋输送机还设置一个配料口，所述配料口作为调配热值的物料接入口。
  2. 根据权利要求1所述的一种深度脱水污泥输送系统，其特征是，所述低阻力管的内管体积与所述污泥泵的排量相等。
  3. 根据权利要求1所述的一种深度脱水污泥输送系统，其特征是，所述预混合螺旋输送机的螺旋叶片增加搅拌刀头，并对叶片刃口钝化，可以通过预混合双轴螺旋输送机的运转实现对深度脱水污泥的破损及混合，并在所述预混合双轴螺旋输送机的预混合出泥口形成一定预压力。
  4. 根据权利要求1所述的一种深度脱水污泥输送系统，其特征是，所述污泥输送泵使用单缸液压柱 塞泵。
  5. 根据权利要求1所述的一种深度脱水污泥输送系统，其特征是，所述介质喷嘴为注油油嘴，介质容纳空间中的介质可以经所述介质喷嘴单向进入所述内管对污泥进行润滑，而所述内管中的污泥则不能反向流入所述介质容纳空间。
  6. 根据权利要求1所述的一种深度脱水污泥输送系统，其特征是，所述喂料滑架、第一双轴螺旋输送机、第二双轴螺旋输送机、预混合螺旋输送机、污泥输送泵及介质高压柱塞泵均由所述液压站驱动。
  7. 根据权利要求1所述的一种深度脱水污泥输送系统，其特征是，在所述第一双轴螺旋输送机、第二双轴螺旋输送机的入口上方分别各设置有挡泥板，所述挡泥板安装固定在所述污泥储仓的侧壁上
  8. 根据权利要求1所述的一种深度脱水污泥输送系统，其特征是，所述污泥储仓底部还设置有多点称重传感器，所述多点称重传感器将信号分别传递给第一双螺旋输送机、第二双螺旋输送机、预混合螺旋输送机及污泥输送泵。
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