WO2018223525A1 - 一种制备煤矿井下降尘用磁化水的磁化装置及方法 - Google Patents

一种制备煤矿井下降尘用磁化水的磁化装置及方法 Download PDF

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WO2018223525A1
WO2018223525A1 PCT/CN2017/098184 CN2017098184W WO2018223525A1 WO 2018223525 A1 WO2018223525 A1 WO 2018223525A1 CN 2017098184 W CN2017098184 W CN 2017098184W WO 2018223525 A1 WO2018223525 A1 WO 2018223525A1
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water
magnetic
magnetization
tube
pressure
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PCT/CN2017/098184
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English (en)
French (fr)
Inventor
秦波涛
周群
王俊
梁洪军
王安梁
高昂
高远
侯晋
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中国矿业大学
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Priority to AU2017384691A priority Critical patent/AU2017384691A1/en
Priority to JP2018527956A priority patent/JP2019523693A/ja
Priority to US16/063,741 priority patent/US20210253453A1/en
Publication of WO2018223525A1 publication Critical patent/WO2018223525A1/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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
    • C02F1/482—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets located on the outer wall of the treatment device, i.e. not in contact with the liquid to be treated, e.g. detachable
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/48—Devices for applying magnetic or electric fields
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/02—Fluid flow conditions
    • C02F2301/026—Spiral, helicoidal, radial

Definitions

  • the invention relates to the field of mine dust removal technical equipment, in particular to a magnetization device and a method for preparing magnetized water for dust reduction in a coal mine.
  • Coal is the main source of energy in China.
  • 95% of coal mining in China is underground.
  • the amount of dust generated in underground coal mines is also increasing.
  • the dust concentration is often as high as 2000mg/m 3 or more. It poses a great threat to the physical and mental health of underground workers and the safe production of mines.
  • the commonly used dust reduction measures in underground mines are mainly water spray dust reduction technologies, such as coal seam water injection and high pressure spray.
  • the existing wet dust reduction technology cannot meet the needs of mine dust prevention. .
  • the magnetization device generally adopts a direct-type magnetization structure and a magnetization mode in a single direction, which easily leads to an unbalanced magnetic field strength and unstable operation, cannot effectively improve the wettability of the solution, and cannot effectively improve the wettability of the spray dust-reducing water.
  • the technical problem to be solved by the present invention is to overcome the defects of the prior art, and to overcome the deficiencies of the existing magnetizing apparatus and method, in order to reduce the dust concentration of the main dust generating point of the mine and improve the dust reducing efficiency, and provide a magnetic field strength stability and magnetization efficiency.
  • High-intensity, intrinsically safe, easy to install and operate, magnetized device and method for preparing magnetized water for dust reduction in coal mines which can effectively improve the wetting performance of coal dust in the coal mine and reduce the dust-reducing efficiency of the wet spray.
  • the present invention provides a magnetizing device for preparing magnetized water for dust reduction in a coal mine, comprising a magnetic cylinder, a water outlet, and a water inlet;
  • the magnetic cylinder includes a pressure tube, a flange, an external magnet, an internal magnet, and a hollow Pressure tube, spiral blade, connecting steel column, closing nut;
  • the flange is welded to both ends of the magnetic cylinder;
  • the blue plate is respectively connected with the water outlet and the water inlet; the water outlet and the water inlet are respectively connected by the mine quick connection and the dust inlet and outlet;
  • the outer magnet is arranged on the outer wall of the pressure resistant tube; the outer wall of the two ends of the hollow pressure resistant tube is welded and fixed to the inner wall of the pressure resistant tube through the connecting steel column; the spiral blade is attached to the inner wall of the pressure resistant tube, and is welded with the hollow pressure resistant tube
  • the internal magnet is enclosed inside the hollow pressure tube, and both ends of the hollow pressure tube are closed by a closing nut.
  • the magnetic cylinders are n, which are divided into two rows; the water outlets are connected to one end of each magnetic cylinder of the first row of magnetic cylinders through a connecting elbow; the water inlets are connected to the elbows and the second row One end of each magnetic cylinder of the magnetic cylinder is connected; the other end of each magnetic cylinder of the first row of magnetic cylinders is respectively connected to the other end of each magnetic cylinder of the second row of magnetic cylinders through a connecting elbow, using "U"
  • the glyphs are arranged in parallel; a valve is provided at one end of the magnetic cylinder connected to the water outlet and the water inlet through the connecting elbow.
  • the number of the magnetic cylinders is n ⁇ 4 and is an even number; the length of the magnetic cylinder is 1.3m-1.8m.
  • the spiral blade has a pitch d ⁇ 50 mm, is closely attached to the inner wall of the pressure-resistant tube, and is closed-type welded with the stainless steel hollow pressure-resistant tube; of course, according to actual needs and the water flow rate, the pitch can be appropriately increased.
  • the hollow pressure-resistant pipe is made of 304 stainless steel, and the pressure-resistant pipe is welded by a "V"-shaped connecting steel column; the hollow pressure-resistant pipe has an inner wire at both ends, and is closed by a closing nut.
  • the pressure resistant tube is made of 304 stainless steel.
  • the magnetic cylinder is externally wrapped with a metal screen magnetic cover; the external magnet is located between the magnetic shield and the pressure resistant tube.
  • the external magnets are alternately arranged around the pressure-resistant tube; the internal magnets are enclosed in a cross-shaped staggered arrangement inside the hollow pressure-resistant tube.
  • the present invention also provides a magnetization method for using the above-described magnetization device for preparing magnetized water for dust reduction in a coal mine, comprising the following steps:
  • the hollow pressure-resistant tube, the spiral blade and the pressure-resistant tube construct a spiral propelling water flow magnetization channel to uniformly magnetize the water flow; and the internal magnet and the external magnet are alternately arranged to form a magnetic field environment with alternating strength and weakness, Continuous pulsating cutting magnetization of the water stream;
  • the strength of the magnetic field environment formed by the internal magnet and the external magnet is 300 mT-350 mT.
  • the magnetizing device designed by the present invention is composed of a plurality of magnetic cylinders, and the number and mounting manner of the magnetic cylinders can be adjusted according to the amount of water to be treated and the water quality, so that the magnetizing device produces an optimal magnetization effect for the dust-reducing water.
  • the magnetization device of the invention has no moving parts inside, does not need external power, and has high safety factor in coal mine underground, and is suitable for gas mines;
  • the magnetic cylinder used in the present invention has internal and external magnets arranged inside the spiral water flow passage in a staggered arrangement, and a stable pulsating strong magnetic field environment is formed inside the magnetic cylinder, and the magnetic field strength thereof is reached. 300-350mT, alternating pulsating cutting magnetization of the flowing dust-reducing water, so that the molecular motion inside the solution is aggravated, and thus the hydrogen bond breakage between the solution molecules is more easy, so that the wet dust performance of the dust-reducing water is enhanced;
  • the spiral blade pitch of the present invention d ⁇ 50 mm, close to the inner wall of the pressure resistant tube, and closed welding with the hollow pressure resistant tube to form a spiral water flow passage, which forms a spiral propulsion together with the magnetic field formed by the inner and outer magnets.
  • the magnetization environment has a longer magnetic path than the straight-through magnetization path; and the turbulence of the aqueous solution flowing through is enhanced, and the uniform magnetization of the aqueous solution is more easily performed;
  • the hollow pressure-resistant tube designed by the invention has inner wires at both ends, and the magnet placed inside can be adjusted according to the nature of the dust in the coal mine, and the purpose of adjusting the pulsating cutting magnetic field environment has been achieved;
  • the magnetization device designed by the present invention adopts a high-efficiency magnetization method in which pulse-cutting magnetization and spiral spoiler are coupled, and the solution has higher magnetization efficiency, more stable magnetic field and longer magnetization time than the straight-through one-way magnetization method.
  • Figure 1 is a front elevational view of a first embodiment of the present invention
  • Figure 2 is a plan view of the first embodiment of the present invention.
  • Figure 3 is a cross-sectional view along the A-A direction of the first embodiment of the present invention.
  • Figure 4 is a spiral view of the inner portion of the magnetic cylinder
  • Figure 5 is a cross-sectional view showing the arrangement of an internal magnet and an external magnet inside the magnetic cylinder
  • Figure 6 is a side view of the outer magnet arranged in the magnetic cylinder
  • Figure 7 is a magnetic induction line distribution diagram of the magnetic tube B-B;
  • Figure 8 is a magnetic flux line distribution diagram of the C-C section of the magnetic cylinder
  • Figure 9 is a magnetic line diagram of the overall cross section of the magnetic cylinder.
  • Figure 10 is a plan view of a second embodiment of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the magnetizing device for preparing magnetized water for dust reduction in a coal mine includes the magnetic cylinder 1, the water outlet 5, and the water inlet 9.
  • the magnetic cylinder 1 includes a pressure tube 2 and a flange 3 , external magnet 12, internal magnet 13, hollow pressure tube 15, spiral blade 16, connecting steel column 18, closing nut 17;
  • the magnetic cylinders 1 are four, the length is 1.5 m, and are divided into two rows; the flange 3 is welded to the two ends of the magnetic cylinder 1; the water outlet 5 is connected to the first row of the magnetic cylinders 1 through the connecting elbow 7 One end of the magnetic cylinder 1 is connected; the water inlet 9 is connected to one end of the two magnetic cylinders 1 of the second row of magnetic cylinders 1 through the connecting elbow 7; the other end of the two magnetic cylinders 1 of the first row of magnetic cylinders 1 Connected to the other end of the two magnetic cylinders 1 of the second row of magnetic cylinders 1 through a connecting elbow 7 respectively, arranged in parallel in a "U" shape; connected to the water outlet 5 and the water inlet 9 through the connecting elbow 7
  • the magnetic cylinder 1 is provided with valves 4, 8, 10, 11 at one end; the water outlet 5 and the water inlet 9 are respectively connected to the dust-receiving inlet and outlet pipes through the mine quick-connect 6; the water flow and the needs according to
  • the present invention also provides a magnetization method for using the above-described magnetization device for preparing magnetized water for dust reduction in a coal mine, comprising the following steps:
  • the hollow pressure resistant tube 15, the spiral blade 16, and the pressure resistant tube 2 construct a spiral propelling water flow magnetization passage to uniformly magnetize the water flow; and the internal magnet 13 and the external magnet 12 are arranged in a staggered arrangement to have strength Alternating magnetic field environment 19, continuous pulsating cutting magnetization of the water flow; (as shown in Figure 7-9)
  • the strength of the magnetic field environment 19 formed by the internal magnet and the external magnet is 300 mT-350 mT.
  • the spiral propelling water flow magnetization passage formed by the hollow pressure resistant tube 15, the spiral vane 16, and the pressure resistant tube 2 increases the turbulence and magnetic path of the aqueous solution with respect to the straight-through magnetizing passage; the internal magnet 13 and the external magnet 12 are interlaced
  • the alternating pulsating magnetic field environment 19 formed by the arrangement can form a resonance system between the water molecules and the magnetic field relative to the single magnetic field environment, so that the molecular motion inside the solution is intensified, and the hydrogen bonds between the solution molecules are more easily broken, thereby achieving dust reduction. Efficient and uniform magnetization of water enhances the spray dust reduction effect of the solution.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the magnetic cylinder 1 of the present embodiment has eight, and the first row is four magnetic cylinders 1.
  • the one ends of the four magnetic cylinders 1 of the first row respectively pass through respective ones.
  • the flange 3 is connected to the connecting elbow 7, and the connecting elbow 7 is connected to the water outlet 5.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Separation Of Particles Using Liquids (AREA)

Abstract

一种制备煤矿井下降尘用磁化水的磁化装置及方法，该装置由多个磁筒（1）以"U"字型排布方式采用连接弯管（7）并联连接而成；所述磁筒（1）由外部磁铁（12）、内部磁铁（13）、中空耐压管（15）、螺旋叶片（16）、屏磁罩（14）、连接钢柱（18）、耐压管（2）、封闭螺母（17）和法兰盘（3）组成。采用交替式排布方法将外部磁铁（12）和内部磁铁（13）布置在由中空耐压管（15）、螺旋叶片（16）与耐压管（2）所构成的水流螺旋通道上，构建了脉动切割磁化与螺旋扰流相结合的高效磁化环境，使得流过的降尘用水得到连续高效磁化，并增加了水流的湍流度及磁程，避免因水与磁场接触时间较短得不到均匀磁化的问题，该装置具有本质安全、操作方便、体积小、磁化效率高的特点。适合安放于煤矿井下各个位置，能有效改善降尘用水的湿润性能。

Description

一种制备煤矿井下降尘用磁化水的磁化装置及方法 技术领域
本发明涉及矿井除尘技术装备领域，尤其涉及一种制备煤矿井下降尘用磁化水的磁化装置及方法。
背景技术
煤炭是我国的主体能源。但我国95％的煤矿开采是地下作业，随着采掘机械化水平的不断提高，煤矿井下粉尘产生量也日益增大，尤其在采掘工作面生产作业过程中，粉尘浓度常常高达2000mg/m3以上，对井下职工的身心健康及矿井的安全生产造成极大威胁。目前井下常用的降尘措施主要为水喷雾降尘技术，如煤层注水、高压喷雾等，但由于水本身表面张力高、煤尘高疏水性的特点，使得现有湿式降尘技术无法满足矿井防尘的需要。为了通过改变水的理化性质来增强水对煤尘的润湿性，水磁化处理技术得到了人们越来越多的关注，研究表明磁化能使水的理化性质发生变化，增强水的湿润性能，进而较大幅度提高水喷雾降尘效率。虽然磁场磁化能增强水溶液湿润降尘性能，但现有大部分磁化器主要应用于水净化处理领域，并不是以改善溶液湿润性能作为技术评价指标，如专利CN201310377032.9，CN200810172164.7，同时以上专利所述磁化装置都普遍采用直通式磁化结构、单一方向的磁化作用方式，易导致所形成的磁场强度不均衡、运行不稳定，不能有效改善溶液湿润性能，无法有效提高喷雾降尘用水的湿润性能。
发明内容
本发明所要解决的技术问题在于克服现有技术缺陷，针对现有磁化装置及方法存在的不足，为了减少矿井主要产尘点的粉尘浓度，提高降尘效率，提供一种具有磁场强度稳定、磁化效率高、本质安全、便于安装及运用的特点、可有效改善煤矿井下降尘用水的湿润性能，提高湿式喷雾降尘效率的制备煤矿井下降尘用磁化水的磁化装置及方法。
为了实现上述目的，本发明提供的制备煤矿井下降尘用磁化水的磁化装置，包括磁筒、出水口、进水口；所述磁筒包括耐压管、法兰盘、外部磁铁、内部磁铁、中空耐压管、螺旋叶片、连接钢柱、封闭螺母；所述法兰盘焊接于磁筒两端；所述耐压管通过法 兰盘分别与出水口、进水口连接；所述出水口、进水口分别通过矿用快接与降尘用进出水管连接；
所述外部磁铁排布在耐压管外壁；所述中空耐压管两端外壁通过连接钢柱与耐压管内壁焊接固定；所述螺旋叶片贴合耐压管内壁，与中空耐压管焊接；所述内部磁铁封闭在中空耐压管内部，中空耐压管两端用封闭螺母进行封闭。
进一步，所述磁筒为n个，分为两排；所述出水口通过连接弯管与第一排磁筒的每个磁筒的一端连接；所述进水口通过连接弯管与第二排磁筒的每个磁筒的一端连接；第一排磁筒的每个磁筒的另一端分别通过一个连接弯管与第二排磁筒的每个磁筒的另一端连接，采用“U”字形并联排布；通过连接弯管与出水口、进水口连接的磁筒一端均设有阀门。
进一步，所述的磁筒个数n≥4，且为偶数；磁筒长度1.3m-1.8m。
进一步，所述螺旋叶片的螺距d≥50mm，紧贴耐压管内壁，与不锈钢中空耐压管采用封闭式焊接；当然根据实际需要及水流量大小，可以适当的增加螺距。
进一步，所述的中空耐压管采用304型不锈钢，与耐压管采用“V”字形连接钢柱焊接；所述中空耐压管两端带有内丝，用封闭螺母进行封闭。
进一步，所述耐压管采用304型不锈钢。
进一步，所述磁筒外部包裹一层金属材质的屏磁罩；外部磁铁位于屏磁罩、耐压管之间。
进一步，所述外部磁铁交替式排布在耐压管周围；所述内部磁铁封闭在中空耐压管内部呈十字形交错排布。
本发明还提供一种利用上述制备煤矿井下降尘用磁化水的磁化装置的磁化方法，包括以下步骤：
A、将降尘用水输入进水口，流入耐压管，通过控制阀门控制水流量；
B、所述中空耐压管、螺旋叶片、耐压管构建螺旋推进水流磁化通道，对水流进行均匀磁化；所述内部磁铁、外部磁铁交错式排布所形成的具有强弱交替的磁场环境，对水流进行持续的脉动式切割磁化；
C、降尘用水通过出水口流出。
进一步，所述内部磁铁、外部磁铁形成的磁场环境的强度为300mT-350mT。
本发明的有益效果在于：
(1)本发明所设计的磁化装置由多个磁筒构成，可以根据处理水量的大小及水质来调节磁筒的数量及安装方式，使磁化装置对降尘用水产生最佳的磁化效果。本发明所述磁化装置内部无运动部件，无需外动力，在煤矿井下使用安全系数高，适用于瓦斯矿井；
(2)本发明所采用的磁筒，其内部所含有的内外磁铁围绕螺旋水流通道采用交错式排布的方式进行放置，在磁筒内部形成了稳定的脉动式强磁场环境，其磁场强度达到了300-350mT，对流过的降尘用水进行交替脉动式切割磁化，使溶液内部分子运动加剧，进而更易于溶液分子间氢键的断裂，使降尘用水的湿润粉尘性能得到增强；
(3)本发明的螺旋叶片螺距d≥50mm，紧贴耐压管内壁，与中空耐压管采用封闭式焊接，形成了螺旋水流通道，该通道与内外磁铁所形成的磁场共同构成了螺旋推进磁化环境，相对于直通式磁化通路，磁程更长；且使流经的水溶液湍流性增强，更易于水溶液的均匀磁化；
(4)本发明所设计的中空耐压管两头带有内丝，可根据煤矿井下降尘用水所具有的性质，来调整内部所放置的磁铁，已达到调节脉动切割磁场环境的目的；
(5)本发明所设计的磁化装置采用脉动切割磁化与螺旋扰流耦合作用的高效磁化方法，相对于直通式单向磁化方法，其溶液磁化效率更高、磁场更稳定、磁化时间更长。
附图说明
图1是本发明实施例一的主视图；
图2是本发明实施例一的俯视图；
图3是本发明实施例一沿A-A方向截面图；
图4是磁筒内部螺旋结构图；
图5是内部磁铁、外部磁铁在磁筒内部排布的截面图；
图6是外部磁铁在磁筒内排布的侧视图；
图7是磁筒B-B截面磁感线分布图；
图8是磁筒C-C截面磁感线分布图；
图9是磁筒整体截面磁感线分布图；
图10是本发明实施例二的俯视图；
图中：1、磁筒，2、耐压管，3、法兰盘，4、8、10、11、阀门，5、出水口，6、矿用快接，7、连接弯管，9、进水口，12、外部磁铁，13、内部磁铁，14、屏磁罩，15、中 空耐压管，16、螺旋叶片，17、封闭螺母，18、连接钢柱，19、磁场环境。
具体实施方式
下面结合附图对本发明进行进一步说明。
实施例一：
如图1-3所示，本发明的制备煤矿井下降尘用磁化水的磁化装置，包括磁筒1、出水口5、进水口9；所述磁筒1包括耐压管2、法兰盘3、外部磁铁12、内部磁铁13、中空耐压管15、螺旋叶片16、连接钢柱18、封闭螺母17；
所述磁筒1为四个，长度为1.5m，分为两排；法兰盘3焊接于磁筒1两端；所述出水口5通过连接弯管7与第一排磁筒1的两个磁筒1的一端连接；所述进水口9通过连接弯管7与第二排磁筒1的两个磁筒1的一端连接；第一排磁筒1的两个磁筒1的另一端分别通过一个连接弯管7与第二排磁筒1的两个磁筒1的另一端连接，采用“U”字形并联排布；通过连接弯管7与出水口5、进水口9连接的所述磁筒1的一端均设有阀门4、8、10、11；所述出水口5、进水口9分别通过矿用快接6与降尘用进出水管连接；可根据磁化的水流量及需要可以增加磁筒1的数量或者控制“U”字形排布通道上的阀门4、8、10、11来实现调节。
如图4-6所示，所述耐压管2外壁包裹一层屏磁罩14，外部磁铁12交替式排布在屏磁罩14、耐压管2之间；所述耐压管2采用304型不锈钢；所述内部磁铁13封闭在中空耐压管15内部呈十字形交错排布；所述中空耐压管15采用304型不锈钢，与耐压管2采用“V”字形的连接钢柱18焊接；所述中空耐压管15两端带有内丝，用封闭螺母17进行封闭；所述螺旋叶片16贴合耐压管2内壁，螺距d＝50mm，与中空耐压管15采用封闭式焊接。
本发明还提供一种利用上述制备煤矿井下降尘用磁化水的磁化装置的磁化方法，包括以下步骤：
A、将降尘用水输入进水口9，流入耐压管2，通过控制阀门4、8、10、11控制水流量；
B、所述中空耐压管15、螺旋叶片16、耐压管2构建螺旋推进水流磁化通道，对水流进行均匀磁化；所述内部磁铁13、外部磁铁12交错式排布所形成的具有强弱交替的磁场环境19，对水流进行持续的脉动式切割磁化；(如图7-9所示)
C、降尘用水通过出水口5流出。
所述内部磁铁、外部磁铁形成的磁场环境19的强度为300mT-350mT。
由中空耐压管15、螺旋叶片16、耐压管2构成的螺旋推进水流磁化通道，相对于直通式磁化通道，增加了水溶液的湍流性与磁程；由内部磁铁13、外部磁铁12交错式排布形成的交替脉动式磁场环境19，相对于单一磁场环境，能够使水分子与磁场形成一种共振系统，使溶液内部分子运动加剧，进而更易于溶液分子间氢键的断裂，实现了降尘用水高效均匀的磁化，增强了溶液喷雾降尘效果。
实施例二：
与实施例一不同的是，如图10所示，本实施例的磁筒1为八个，第一排为四个磁筒1；第一排的四个磁筒1的一端分别通过各自的法兰盘3与连接弯管7连接，连接弯管7与出水口5连接。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下还可以做出若干改进，这些改进也应视为本发明的保护范围。

Claims (9)

  1. 一种制备煤矿井下降尘用磁化水的磁化装置，其特征在于：包括磁筒(1)、出水口(5)、进水口(9)；所述磁筒(1)包括耐压管(2)、法兰盘(3)、外部磁铁(12)、内部磁铁(13)、中空耐压管(15)、螺旋叶片(16)、连接钢柱(18)、封闭螺母(17)；
    所述法兰盘(3)焊接于磁筒(1)两端；所述耐压管(2)通过法兰盘(3)分别与出水口(5)、进水口(9)连接；所述出水口(5)、进水口(9)分别与降尘用进出水管连接；
    所述外部磁铁(12)排布在耐压管(2)外壁；所述中空耐压管(15)两端外壁通过连接钢柱(18)与耐压管(2)内壁焊接固定；所述螺旋叶片(16)贴合耐压管(2)内壁，与中空耐压管(15)焊接；所述内部磁铁(13)封闭在中空耐压管(15)内部，中空耐压管(15)两端用封闭螺母(17)进行封闭。
  2. 根据权利要求1所述的制备煤矿井下降尘用磁化水的磁化装置，其特征在于：所述磁筒(1)为n个，分为两排；所述出水口(5)通过第一连接弯管(7)与第一排磁筒(1)的每个磁筒(1)的一端连接；所述进水口(9)通过第二连接弯管(7)与第二排磁筒(1)的每个磁筒(1)的一端连接；第一排磁筒(1)的每个磁筒(1)的另一端分别通过一个连接弯管(7)与第二排磁筒(1)的每个磁筒(1)的另一端连接，采用“U”字形并联排布；通过连接弯管(7)与出水口(5)、进水口(9)连接的所述磁筒(1)的一端均设有阀门(4、8、10、11)。
  3. 根据权利要求1所述的制备煤矿井下降尘用磁化水的磁化装置，其特征在于：所述磁筒(1)个数n≥4，且为偶数，磁筒(1)长度1.3m-1.8m。
  4. 根据权利要求1所述的制备煤矿井下降尘用磁化水的磁化装置，其特征在于：所述螺旋叶片(16)的螺距d≥50mm，与中空耐压管(15)采用封闭式焊接。
  5. 根据权利要求1所述的制备煤矿井下降尘用磁化水的磁化装置，其特征在于：所述中空耐压管(15)采用304型不锈钢，与耐压管(2)采用“V”字形的连接钢柱(18)焊接；所述中空耐压管(15)两端带有内丝，用封闭螺母(17)进行封闭；所述耐压管(2)采用304型不锈钢。
  6. 根据权利要求1所述的制备煤矿井下降尘用磁化水的磁化装置，其特征在于：所述耐压管(2)外壁包裹一层屏磁罩(14)，外部磁铁(12)位于屏磁罩(14)、耐压管(2)之间。
  7. 根据权利要求1-6任一所述的制备煤矿井下降尘用磁化水的磁化装置，其特征 在于：所述外部磁铁(12)交替式排布在耐压管(2)周围；所述内部磁铁(13)封闭在中空耐压管(15)内部呈十字形交错排布。
  8. 一种利用如权利要求7所述的制备煤矿井下降尘用磁化水的磁化装置的磁化方法，其特征在于包括以下步骤：
    A、将降尘用水输入进水口(9)，流入耐压管(2)，通过控制阀门(4、8、10、11)控制水流量；
    B、所述中空耐压管(15)、螺旋叶片(16)、耐压管(2)构建螺旋推进水流磁化通道，对水流进行均匀磁化；所述内部磁铁(13)、外部磁铁(12)交错式排布所形成的具有强弱交替的磁场环境(19)，对水流进行持续的脉动式切割磁化；
    C、降尘用水通过出水口(5)流出。
  9. 一种根据权利要求8所述的磁化方法，其特征在于：所述内部磁铁(13)、外部磁铁(12)形成的磁场环境(19)的强度为300mT-350mT。
PCT/CN2017/098184 2017-06-07 2017-08-19 一种制备煤矿井下降尘用磁化水的磁化装置及方法 WO2018223525A1 (zh)

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