WO2010063183A1 - 圆柱式反冲洗净化装置 - Google Patents

圆柱式反冲洗净化装置 Download PDF

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Publication number
WO2010063183A1
WO2010063183A1 PCT/CN2009/073475 CN2009073475W WO2010063183A1 WO 2010063183 A1 WO2010063183 A1 WO 2010063183A1 CN 2009073475 W CN2009073475 W CN 2009073475W WO 2010063183 A1 WO2010063183 A1 WO 2010063183A1
Authority
WO
WIPO (PCT)
Prior art keywords
plunger
hole
cylindrical
annular cavity
purification device
Prior art date
Application number
PCT/CN2009/073475
Other languages
English (en)
French (fr)
Inventor
王训
王振保
王赞
王操
Original Assignee
Wang Xun
Wang Zhenbao
Wang Zan
Wang Cao
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN2009201622196U external-priority patent/CN201470203U/zh
Application filed by Wang Xun, Wang Zhenbao, Wang Zan, Wang Cao filed Critical Wang Xun
Priority to EP09829967A priority Critical patent/EP2383099A4/en
Priority to US13/132,709 priority patent/US8585897B2/en
Publication of WO2010063183A1 publication Critical patent/WO2010063183A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/665—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps by using pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/694—Cylindrical or conical filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Definitions

  • the present invention relates to a fluid purification device, and in particular to a cylindrical backwash purification device.
  • Double-cylinder filter can replace the filter screen without stopping the machine compared to the single-cylinder filter, but there is a filter on one side of the cylindrical surface on the inlet side, and there is still a small effective filtration area and low filtration efficiency. Defects.
  • the flow will form a dead material, that is, non-moving materials, which cannot be removed by the concrete, which affects the filtering effect and the product [5]
  • the present invention provides a small volume and an effective filtering area.
  • a cylindrical backwashing purification device with high work efficiency and more stable product quality.
  • the cylindrical backwashing purification device includes a body, and a cylindrical through hole is laterally disposed in the body, and the through hole is provided with a tight fit with the through hole, and the shaft is axially
  • the body is provided with a feeding passage and a discharging passage connected with the through hole, and the outer circle of the front portion of the plunger is recessed inwardly to form an annular cavity with the inner wall of the through hole, the annular cavity and the feeding
  • the passage is connected, and the plunger has an "L"-shaped hole connected to the discharge passage from the front to the rear in the axial direction, and the circumferential surface of the recessed recess of the plunger is provided with a connecting annular cavity and an "L" shape in a radial direction.
  • the filter hole of the hole is connected with a detachable filter screen on the circumferential surface of the recessed portion of the plunger.
  • the plunger is axially disposed in the annular cavity with a spacer in contact with the inner wall of the through hole, and the outer surface of the plunger is provided with a semicircular annular groove on both sides of the discharge passage.
  • the "L"-shaped hole at the front end of the plunger is axially provided with a piston.
  • the front end of the piston protrudes from the plunger, the front end of the piston is connected with a front power mechanism, and the rear end of the plunger is connected with a rear power mechanism.
  • the plunger drive is coupled to a rotary drive mechanism.
  • the plunger is provided with a feeding channel and an exhaust channel respectively, the feeding channel is located behind the feeding channel, and the exhaust channel is located in front of the annular cavity.
  • the cylindrical backwashing purification device is provided in series, in parallel or in series and parallel, at least two, each of the cylindrical backwashing purification device feed channels are connected, and each cylindrical backwashing purification device The discharge channels are all connected.
  • the cylindrical feed backwashing device of the series, parallel or series-parallel has an inlet channel and a discharge channel having an angle of less than or equal to 180 degrees.
  • the fluid to be filtered enters the annular cavity through the feed channel, passes through the filter hole under the filter mesh to enter the "L" shape hole, and finally discharges the body through the discharge channel to complete the filtration, so that the effective filter surface
  • the filtering surface is increased, which improves the working efficiency; during the working process of the filter, the flow will move from the inlet in two directions, and the place where the two streams meet will form a dead material, that is, not moving.
  • the flow, the dead material will cause aging, deterioration and blackening under the conditions of high temperature between the long rafts. Once it flows out, it will pollute the filtered material, and then the plunger will be rotated and the spacer will rotate.
  • the dead material is scraped and flow filtered to prevent a part of the material from flowing and metamorphosing and affecting the product quality.
  • the setting of the semi-circular groove makes the plunger rotate left and right, and the discharge channel always communicates with the "L" hole to ensure the material. Continuity of filtration.
  • the filter ⁇ needs to be cleaned or replaced.
  • the rear power mechanism pushes the plunger forward.
  • the front power mechanism quickly pushes the piston backwards, pushing the melt in the “L” hole to backwash the filter. This allows the filter to be used multiple times.
  • the rotary drive mechanism drives the plunger to rotate left and right, driving the spacer to scrape the dead material in the annular cavity, ensuring no dead material in the annular cavity, and the product quality is higher.
  • the cylindrical backwashing purification device is arranged in series, parallel or series and parallel, at least two, each of the cylindrical backwashing purification device feed channels are connected, each cylindrical backwashing purification device The discharge channels are all connected. This not only increases the filtration area, but also improves the filtration efficiency. Moreover, the filter screen on the plunger can be separately cleaned or replaced in the case of continuous operation, and the cylindrical backwashing purification device group can be achieved. The greater the number of combinations, the smaller the effect of replacing or cleaning a single filter on the overall flow.
  • angles of the feeding passage and the discharge passage of several cylindrical backwashing purification devices connected in series, in parallel or in series and parallel are less than 180 degrees, so that multiple feeding channels and discharging channels can be easily connected.
  • the invention has reasonable design, simple structure, small volume, large effective filtering area, good filtering effect, no need to stop after cleaning or replacing the filter screen, long working time, high working efficiency and high product quality.
  • Figure 1 is a schematic view showing the structure of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • FIG. 3 is a first embodiment of a cross-sectional view taken along line B-B of FIG. 1;
  • FIG. 4 is a second embodiment of the cross-sectional view taken along line B-B of FIG. 1;
  • FIG. 5 is a schematic structural view showing a plurality of series and parallel arrangement of the present invention.
  • Figure 6 is a cross-sectional view taken along line C C of Figure 5;
  • Figure 7 is a schematic view showing the structure of two sets of the present invention in series.
  • the cylindrical backwashing purification device of the present invention comprises a body 1.
  • the body 1 has a cylindrical through hole 2 in a lateral direction, and the through hole 2 is closely matched with the hole 2
  • the plunger 4 can be axially slidably connected, the length of the plunger 4 is greater than the length of the through hole 2, and the body 1 is provided with a feed passage 6 and a discharge passage 8 connected to the through hole 2, respectively.
  • the outer circumference of the front portion of the plunger 4 is recessed inwardly and forms an annular cavity 10 with the inner wall of the through hole 2, respectively.
  • the annular cavity 10 is connected with the feed passage 6, and the middle portion of the plunger 4 is opened from the front to the rear in the axial direction.
  • An "L"-shaped hole 12 connected to the discharge passage 8 is provided in the "L"-shaped hole 12 in front of the annular cavity 11 with a piston 13 slidably coupled thereto.
  • the piston 13 protrudes from the plunger 4, and the front end of the piston 13 is connected.
  • There is a front power mechanism 5, a rear power mechanism 7 is connected to the rear end of the plunger 4, and the front power mechanism 5 and the rear power mechanism 7 are both hydraulic cylinders.
  • a filter hole 14 connecting the annular cavity 10 and the "L"-shaped hole 12 is opened in the radial direction of the recessed circumferential surface of the plunger 4, and the filter 15 is detachably connected to the recessed circumferential surface of the plunger 4.
  • the plunger 4 is provided with a feed channel 20 and an exhaust passage 21, respectively, and the introduction channel 20 is located behind the feed channel 6, and the exhaust channel 21 is located in front of the annular cavity 10.
  • a spacer 3 which is in contact with the inner wall of the through hole 2 is axially disposed in the annular cavity 10, and a semicircular annular groove 16 is formed on the outer surface of the plunger 4 on both sides of the discharge passage 8.
  • the plunger 4 is connected with a rotary drive mechanism, and the transmission mechanism of the rotary drive mechanism and the plunger 4 can be gear transmission (as shown in FIG. 3), and the gear 40 meshes with the plunger 4 to transmit It is also possible to drive the belt (as shown in Fig. 4), and the pulley 41 is connected to the plunger 4 via the belt 42.
  • the cylindrical backwashing purification device is provided in series, in parallel or in series and in parallel to form a combined backwashing purification device, and the combined backwashing and purifying device is fed.
  • the port 30 separates two feed channels 31 and a feed channel 32, and the discharge port 33 separates two discharge channels 34 and a discharge channel 35.
  • the four feed channels 6 of the four cylindrical backwashing purification devices are connected to the feed channel 31, and the four discharge channels 8 are connected to the discharge channel 34 , and four of the other four cylindrical backwashing purification devices
  • the feed passages 6 are all connected to the feed passage 32, and the four discharge passages 8 are connected to the discharge passages 35.
  • the angle between the feed passage 6 and the discharge passage 8 of each cylindrical backwashing purification device is less than 180 degrees.
  • the cylindrical backwashing purification device is provided in series, in parallel or in series and in parallel.
  • Two feed channels 6 are commonly connected to the feed port 30, and the two discharge channels 8 are commonly connected to the discharge port 33.
  • the angle between the feed channel 6 and the discharge channel 8 is less than 180 degrees.
  • a single cylindrical backwashing purification device as shown in Figures 1 and 2 can be used alone, or a plurality of combined backwashing purification devices as shown in Figures 5 and 6 can be used.
  • a combined backwashing purification device is taken as an example to describe a specific purification filtration process.
  • the fluid material to be filtered enters the feed channel 31 and the feed channel 32 from the feed port 30, and the material enters the annular cavity 10 through the feed channel 6. After being filtered by the filter 15, it passes through the filter hole 14 and enters the "L"-shaped hole 12, and then passes through the discharge passage 8, respectively, and discharges the body 1 through the discharge passage 34 and the discharge passage 35 to complete the filtering work.
  • the filter 15 pollutes the blockage
  • the feed pressure rises
  • the pressure sensor at the inlet of the feed channel 6 gives a signal alarm that the filter screen needs to be cleaned
  • the rear power mechanism 7 pushes the filter 15 on the plunger 4 all the way out.
  • the front power mechanism 5 pushes the piston 13 backward, and uses the fluid material to backwash the filter 15 to discharge the impurities, and then enters the body 1 ⁇ in the annular cavity 10, and introduces a small amount of material by using the material introduction channel 20.
  • the flow pushes the piston 13 back in the opposite direction, simultaneously discharges the air in the annular cavity 10, and finally resets the plunger 4 to continue working.
  • the filter 15 is cleaned several times, it needs to be replaced.
  • the rear power mechanism 7 pushes the plunger 4 out of the body 1. After replacing the filter 15, the plunger 4 is pulled back.
  • the introduction channel 20 communicates with the inlet of the feed channel 6, and a small amount of material flow is introduced to gradually fill the annular cavity 10, and the air therein is discharged from the exhaust passage 21, and the air is discharged and the plunger 4 is pulled back to the starting position. , enter the working state.
  • the filter 15 of the other cylindrical backwashing purification device is still working, so that the filter can be kept in and out of the filter.
  • a plurality of combined backwashing purification devices are provided to multiply the amount of one-time filtration, and the effective filtering area of the screen 15 is a toroidal shape, and the effective filtering area is large, thereby improving work efficiency. After working with a single cylindrical backwash purification unit, it is necessary to stop the cleaning or replace the filter.
  • the semicircular annular groove 16 ensures that the discharge passage 8 is always in communication with the "L" shaped hole 12, ensuring continuity of material filtration, This part of the dead material and sputum flow, to avoid the dead material long stay between the day, to ensure the effect of material filtration and product quality
  • cylindrical backwashing purification device may be provided in series, in parallel or in series and in parallel, and the number is not limited, and the conversion is also within the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Description

说明书 圆柱式反冲洗净化装置
[1] 技术领域
[2] 本发明涉及一种流体净化设备， 具体涉及一种圆柱式反冲洗净化装置。
[3] 背景技术
[4] 目前， 市场上出售的、 各行业使用的单圆柱式过滤器存在着体积大、 过滤面积 小， 过滤效率低的缺点， 而且更换滤网吋必须停机进行更换， 影响到生产的连 续作业； 双圆柱式过滤器相比单圆柱式过滤器可以在不停机状态下更换滤网， 但是在其进口侧的圆柱面上设有一面的滤网， 仍然存在着有效过滤面积小、 过 滤效率低的缺陷。 另外， 现有的圆柱式过滤器在工作过程中， 料流会在某处形 成死料， 即不运动的物料， 这些物料不能被及吋清除， 影响到过滤效果和产品 [5] 发明内容
[6] 本发明为了解决现有技术中的不足之处， 提供了一种体积小、 有效过滤面积大
、 工作效率高、 产品质量更稳定的圆柱式反冲洗净化装置。
[7] 为解决上述技术问题， 本发明釆用如下技术方案： 圆柱式反冲洗净化装置， 包 括本体， 本体内横向设有圆柱状通孔， 通孔内设有与通孔紧密配合、 可轴向滑 动连接的柱塞， 本体上设有与通孔连接的进料通道和出料通道， 所述柱塞前部 外圆向内凹陷与通孔内壁形成环形空腔， 环形空腔与进料通道连接， 柱塞在轴 向方向上由前到后开设有与出料通道连接的" L"形孔， 柱塞凹陷圆周面上在径向 方向上开设有连接环形空腔与" L"形孔的过滤孔， 柱塞凹陷圆周面上连接有可拆 卸的滤网。
[8] 所述柱塞上于环形空腔内轴向设有与通孔内壁接触的隔条， 柱塞外表面上于出 料通道两侧设有半圆环形凹槽。
[9] 所述柱塞前端的" L"形孔内轴向设有活塞， 活塞前端凸出于柱塞， 活塞前端连 接有前动力机构， 柱塞后端连接有后动力机构。
[10] 所述柱塞传动连接有旋转驱动机构。 [11] 柱塞上分别设有引料通道和排气通道， 引料通道位于进料通道后方， 排气通道 位于环形空腔前方。
[12] 所述该圆柱式反冲洗净化装置按照串联、 并联或串并联的方式至少设有两个， 每个圆柱式反冲洗净化装置的进料通道均相通， 每个圆柱式反冲洗净化装置的 出料通道均相通。
[13] 所述串联、 并联或串并联的若干个圆柱式反冲洗净化装置的进料通道和出料通 道夹角小于等于 180度。
[14] 釆用上述结构， 达到的有益效果分别为：
[15] 1、 待过滤的流体通过进料通道进入环形空腔， 在滤网的过滤下通过过滤孔进 入" L"形孔， 最后经过出料通道排出本体， 完成过滤， 这样有效的过滤面为圆环 面， 过滤面增大， 提高了工作效率； 在过滤器工作过程中， 料流会从进口分两 个方向运动， 两股料流相遇的地方就会形成死料， 即不运动的料流， 死料在长 吋间的高温等条件下会产生老化、 变质发黑等现象， 一旦流出， 将会污染到已 过滤好的物料， 这吋就旋转柱塞， 隔条随之转动， 将死料刮起流动过滤， 避免 一部分物料滞留变质后流动而影响到产品质量， 半圆弧凹槽的设置使得柱塞在 左右旋转吋， 出料通道始终与" L"形孔连通， 确保物料过滤的连续性。
[16] 2、 需要清洗或更换滤网吋， 后动力机构将柱塞向前推出， 前动力机构快速推 动活塞向后运动， 推动" L"形孔内的熔料对滤网反向冲洗， 使得滤网可重复多次 使用。
[17] 3、 旋转驱动机构带动柱塞进行左右旋转， 带动隔条刮出环形空腔内的死料， 确保环形空腔内无死料， 产品质量更高。
[18] 4、 在每次更换好滤网将柱塞回位吋， 需要将环形空腔内空气排空， 通过引料 通道引入小量待过滤的流体充满环形空腔， 空气从排空通道排出吋， 环形空腔 前端已进入到通孔内。
[19] 5、 该圆柱式反冲洗净化装置按照串联、 并联或串并联的方式至少设有两个， 每个圆柱式反冲洗净化装置的进料通道均相通， 每个圆柱式反冲洗净化装置的 出料通道均相通。 这样不仅增加了过滤面积， 提高过滤效率， 而且这样可在连 续工作的情况下分别清洗或更换柱塞上的滤网， 达到圆柱式反冲洗净化装置组 合的数量越多更换或清洗单个滤网吋对整体流量的影响越小的效果。
[20] 6、 串联、 并联或串并联的若干个圆柱式反冲洗净化装置的进料通道和出料通 道夹角小于 180度， 这样多个进料通道和出料通道可以方便实现连通。
[21] 本发明设计合理、 结构简单、 体积小、 有效过滤面积大、 过滤效果好、 在清洗 或更换滤网吋不必停机、 连续工作吋间长、 工作效率高， 产品质量高。
[22] 附图说明
[23] 图 1是本发明的结构示意图；
[24] 图 2是图 1当中的 A— A剖视图；
[25] 图 3是图 1当中 B— B剖视图的实施例一；
[26] 图 4是图 1当中 B— B剖视图的实施例二；
[27] 图 5是本发明串并联设置若干个的结构示意图；
[28] 图 6是图 5的 C C剖视图；
[29] 图 7是本发明串联设置两个的结构示意图。
[30] 具体实施方式
[31] 如图 1、 图 2所示， 本发明的圆柱式反冲洗净化装置， 包括本体 1， 本体 1内横向 平行设有圆柱状的通孔 2， 通孔 2内设有与其紧密配合、 可轴向滑动连接的柱塞 4 ， 柱塞 4长度大于通孔 2的长度， 本体 1前后分别设有与通孔 2连接的进料通道 6和 出料通道 8。 柱塞 4前部外圆均向内凹陷并分别与通孔 2内壁形成环形空腔 10， 环 形空腔 10与进料通道 6连接， 柱塞 4中部在轴向方向上由前到后开设有一个与出 料通道 8连接的 "L"形孔 12， "L"形孔 12内于环形空腔 11前方设有与其滑动连接的 活塞 13， 活塞 13凸出于柱塞 4， 活塞 13前端连接有前动力机构 5， 柱塞 4后端连接 有后动力机构 7， 前动力机构 5和后动力机构 7均釆用液压油缸。 柱塞 4的凹陷圆 周面上在径向方向上开设有连接环形空腔 10与" L"形孔 12的过滤孔 14， 柱塞 4凹 陷圆周面上可拆卸连接有滤网 15。 柱塞 4上分别设有引料通道 20和排气通道 21， 引料通道 20位于进料通道 6的后方， 排气通道 21位于环形空腔 10的前方。 柱塞 4 上于环形空腔 10内轴向设有与通孔 2内壁接触的隔条 3， 柱塞 4外表面上于出料通 道 8两侧设有半圆环形凹槽 16。 柱塞 4传动连接有旋转驱动机构， 该旋转驱动机 构与柱塞 4的传动方式可以为齿轮传动 （如图 3所示） ， 齿轮 40与柱塞 4啮合传动 ； 也可以为皮带传动 （如图 4所示） ， 皮带轮 41通过皮带 42传动连接柱塞 4。
[32] 如图 5和图 6所示， 该圆柱式反冲洗净化装置串联、 并联或串并联设有八个， 形 成一台组合式反冲洗净化设备， 该组合式反冲洗净化设备的进料口 30分出两条 输料通道 31和输料通道 32， 出料口 33分出两条排料通道 34和排料通道 35。 其中 四个圆柱式反冲洗净化装置的四个进料通道 6均与输料通道 31连接， 四个出料通 道 8均与排料通道 34连接， 另外四个圆柱式反冲洗净化装置的四个进料通道 6均 与输料通道 32连接， 四个出料通道 8均与排料通道 35连接， 每个圆柱式反冲洗净 化装置的进料通道 6和出料通道 8夹角小于 180度。
[33] 如图 7所示， 该圆柱式反冲洗净化装置串联、 并联或串并联设有两个， 两进料 通道 6共同连接进料口 30， 两出料通道 8共同连接出料口 33， 进料通道 6和出料通 道 8夹角小于 180度。
[34] 图 6、 图 7当中箭头所示的为物料过滤净化的流向。
[35] 工作吋， 可以单独使用如图 1和 2所示的单个圆柱式反冲洗净化装置， 也可以使 用如图 5和图 6所示的多个组合式反冲洗净化设备。 下面以组合式反冲洗净化设 备为例叙述一下具体净化过滤工作过程， 待过滤的流体物料由进料口 30进入输 料通道 31和输料通道 32， 物料通过进料通道 6进入环形空腔 10， 经过滤网 15的过 滤后， 通过过滤孔 14进入到 "L"形孔 12内， 再分别经过出料通道 8， 通过排料通 道 34和排料通道 35排出本体 1， 完成过滤工作。 当滤网 15污染堵塞吋， 进料压力 升高， 进料通道 6进口处的压力传感器给出信号报警需要清洗滤网吋， 后动力机 构 7将柱塞 4上的滤网 15全部推出本体 1外， 这吋前动力机构 5推动活塞 13向后前 进， 利用流体物料反向冲洗滤网 15， 把杂质排出， 然后在环形空腔 10刚进入到 本体 1吋， 利用引料通道 20引小量料流将活塞 13反向推回， 同吋排出环形空腔 10 内的空气， 最后把柱塞 4复位继续工作。 当滤网 15多次清洗后需要更换吋， 后动 力机构 7将柱塞 4推出本体 1外， 更换滤网 15后将柱塞 4往回拉， 当环形空腔 10刚 刚全部进入本体 1吋， 引料通道 20与进料通道 6进口相通， 引入小量物料流逐渐 充满环形空腔 10， 将其内的空气由排气通道 21排出， 空气排完后再将柱塞 4拉回 到起始位置， 进入工作状态。 在更换一个圆柱式反冲洗净化装置的滤网 15吋， 其它的圆柱式反冲洗净化装置的滤网 15仍在工作这样可保持本过滤器进出料流 不中断， 设置多个组合式反冲洗净化设备使得一次性过滤量成倍增加， 而且滤 网 15的有效过滤面积为圆环面形， 有效过滤面积大， 提高了工作效率。 在使用 单个圆柱式反冲洗净化装置进行工作吋， 需要停机清洗或更换滤网。
[36] 另外， 在该圆柱式反冲洗净化装置工作过程中， 料流会从进口分两个方向运动 ， 而在环形空腔 10内两股料流相遇的地方会形成死料， 即不运动的料流， 死料 在长吋间的高温等条件下会发生老化等变化， 一旦流出， 将会对产品产生一定 的影响。 这吋， 启动旋转驱动机构， 柱塞 4旋转带动隔条左右转动 80〜90度， 半 圆环形凹槽 16保证出料通道 8始终与 "L"形孔 12连通， 确保物料过滤的连续性， 将此部分死料及吋流动， 避免死料长吋间停留， 保证物料过滤的效果和产品质
[37] 当然， 该圆柱式反冲洗净化装置串联、 并联或串并联可以设有多个， 数量不限 ， 此变换也在本发明保护范围。

Claims

权利要求书
[1] 圆柱式反冲洗净化装置， 包括本体， 本体内横向设有圆柱状通孔， 通孔内 设有与通孔紧密配合、 可轴向滑动连接的柱塞， 本体上设有与通孔连接的 进料通道和出料通道， 其特征在于： 柱塞前部外圆向内凹陷与通孔内壁形 成环形空腔， 环形空腔与进料通道连接， 柱塞在轴向方向上由前到后开设 有与出料通道连接的 "L"形孔， 柱塞凹陷圆周面上在径向方向上开设有连接 环形空腔与" L"形孔的过滤孔， 柱塞凹陷圆周面上连接有可拆卸的滤网。
[2] 根据权利要求 1所述的圆柱式反冲洗净化装置， 其特征在于： 所述柱塞上于 环形空腔内轴向设有与通孔内壁接触的隔条， 柱塞外表面上于出料通道两 侧设有半圆环形凹槽。
[3] 根据权利要求 1或 2所述的圆柱式反冲洗净化装置， 其特征在于： 所述柱塞 前端的 "L"形孔内轴向设有活塞， 活塞前端凸出于柱塞， 活塞前端连接有前 动力机构， 柱塞后端连接有后动力机构。
[4] 根据权利要求 3所述的圆柱式反冲洗净化装置， 其特征在于： 所述柱塞传动 连接有旋转驱动机构。
[5] 根据权利要求 4所述的圆柱式反冲洗净化装置， 其特征在于： 柱塞上分别设 有引料通道和排气通道， 引料通道位于进料通道后方， 排气通道位于环形 空腔前方。
[6] 根据权利要求 5所述的圆柱式反冲洗净化装置， 其特征在于： 所述该圆柱式 反冲洗净化装置按照串联、 并联或串并联的方式至少设有两个， 每个圆柱 式反冲洗净化装置的进料通道均相通， 每个圆柱式反冲洗净化装置的出料 通道均相通。
[7] 根据权利要求 6所述的圆柱式反冲洗净化装置， 其特征在于： 所述串联、 并 联或串并联的若干个圆柱式反冲洗净化装置的进料通道和出料通道夹角小 于等于 180度。
PCT/CN2009/073475 2008-12-05 2009-08-25 圆柱式反冲洗净化装置 WO2010063183A1 (zh)

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