CN106242225B - Anti-side leakage pressurized belt dehydration device and method - Google Patents
Anti-side leakage pressurized belt dehydration device and method Download PDFInfo
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- 230000018044 dehydration Effects 0.000 title claims abstract description 34
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000010802 sludge Substances 0.000 claims abstract description 75
- 239000000463 material Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 230000007423 decrease Effects 0.000 claims abstract description 3
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 3
- 208000005156 Dehydration Diseases 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010924 continuous production Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
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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
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
本发明公开一种防侧漏增压带式脱水装置及方法，其装置包括上滤网、下滤网、上履带、下履带和密封件，上滤网内侧设有上履带，下滤网内侧设有下履带，下滤网与下履带的接触面两侧边沿分别设有密封件，下滤网的中部呈凹槽结构，污泥物料位于凹槽内；下滤网水平设置，上滤网倾斜设于下滤网上方。其方法是下履带带动密封件及下滤网进行运动，上履带带动上滤网进行运动，污泥物料分布于下滤网中部的凹槽内，并随着下滤网的运行进行输送，随着上滤网与下滤网之间的距离逐渐变小，污泥物料中的水分被挤出并通过下滤网渗出，实现固液分离。本发明可有效克服现有压滤机的跑泥、漏泥等现象，提高脱水效果，并可适应多种类污泥的脱水处理。
The invention discloses an anti-side leakage pressurized belt dehydration device and method. The device comprises an upper filter screen, a lower filter screen, an upper crawler belt, a lower crawler belt and a sealing member. There is a lower track, and seals are provided on both sides of the contact surface between the lower filter and the lower track. The middle part of the lower filter has a groove structure, and the sludge material is located in the groove; the lower filter is set horizontally, and the upper filter Inclined above the lower filter. The method is that the lower crawler belt drives the seal and the lower filter screen to move, and the upper crawler belt drives the upper filter screen to move, and the sludge material is distributed in the groove in the middle of the lower filter screen, and is transported along with the operation of the lower filter screen. As the distance between the upper filter and the lower filter gradually decreases, the water in the sludge material is squeezed out and seeps out through the lower filter to achieve solid-liquid separation. The invention can effectively overcome the phenomenon of mud running and mud leakage in the existing filter press, improve the dehydration effect, and can be adapted to the dehydration treatment of various kinds of sludge.
Description
技术领域technical field
本发明涉及污泥脱水技术领域，特别涉及一种防侧漏增压带式脱水装置与方法。The invention relates to the technical field of sludge dewatering, in particular to an anti-side leakage pressurized belt dehydration device and method.
背景技术Background technique
污泥处理的目的是要达到“减量化、稳定化、无害化”，而污泥的资源化则是利用污泥中的各种有效成分，开发具有附加值的功能化产品。在各种污泥资源化利用技术中，其中污泥脱水是共性技术，在污泥脱水过程中，脱水设备的选择是污泥脱水生产的关键。现有生产主要采用的污泥脱水设备有：利用压滤方式的板框脱水机、厢式脱水机、带式污泥脱水机和离心脱水机等。板框脱水机和厢式脱水机对污泥的适应性强，脱水干度较高，但产量低、间歇生产，想要连续化生产，提高产量，则需使用离心及带式脱水机。离心脱水机具有占地小，自动化程度高、单机产量大等优点，但同时也存在脱水干度较低、动力消耗高等缺点。而带式脱水机是利用滤布的张力和压力，在滤布上对污泥施加压力，使污泥脱水，带式机动力消耗低，连续生产，但在实际生产中，带式压滤机由于没有专门对污泥施加压力的机构，因此对污泥的压力相当低，一般只能将污泥的干度提高到10％-30％。The purpose of sludge treatment is to achieve "reduction, stabilization, and harmlessness", while the recycling of sludge is to use various active ingredients in sludge to develop functional products with added value. Among various sludge resource utilization technologies, sludge dehydration is a common technology. In the process of sludge dehydration, the selection of dehydration equipment is the key to sludge dehydration production. The sludge dewatering equipment mainly used in the existing production includes: plate and frame dewatering machine, van dewatering machine, belt sludge dewatering machine and centrifugal dewatering machine using filter press method. Plate and frame dehydrator and box dehydrator have strong adaptability to sludge and high dehydration dryness, but the output is low and intermittent production. If you want continuous production and increase output, you need to use centrifugal and belt dehydrator. The centrifugal dehydrator has the advantages of small footprint, high degree of automation, and large output of a single machine, but it also has the disadvantages of low dehydration dryness and high power consumption. The belt dehydrator uses the tension and pressure of the filter cloth to exert pressure on the sludge on the filter cloth to dehydrate the sludge. The belt machine has low power consumption and continuous production. However, in actual production, the belt filter press Since there is no special mechanism for applying pressure to the sludge, the pressure on the sludge is quite low, and generally the dryness of the sludge can only be increased to 10%-30%.
为了在能连续化生产的前提下提高干度，本申请人在先也研制了高压平面带式脱水机，通过上压泥带和下压泥带倾斜设置形成在上压泥带和下压泥带之间距离逐渐减小的压滤区，从而使压滤压力能提高到6MPa，压滤干度提高20％以上，使其既有带式机的连续生产的优点，又实现了板框类设备高压的优点。但是，高压平面带式压滤机存在着跑泥、漏泥的现象，这使得该带式脱水机对泥的种类和性质有更高的要求，脱水机脱水效果下降，施加压力不能有效利用在污泥脱水上，造成能源浪费的现象，这大大制约了带式脱水机的使用和发展。In order to improve the dryness under the premise of continuous production, the applicant has also developed a high-pressure flat belt dewatering machine, which is formed on the upper mud belt and the lower mud belt by obliquely setting the upper mud belt and the lower mud belt. The distance between the belts is gradually reduced, so that the pressure of the filter can be increased to 6MPa, and the dryness of the filter can be increased by more than 20%, so that it not only has the advantages of continuous production of the belt machine, but also realizes the plate and frame type Advantages of equipment high voltage. However, there are mud running and mud leakage in the high-pressure flat belt filter press, which makes the belt dehydrator have higher requirements on the type and nature of mud, the dehydration effect of the dehydrator is reduced, and the pressure cannot be effectively used Sludge dehydration causes energy waste, which greatly restricts the use and development of belt dehydrators.
发明内容Contents of the invention
本发明的目的在于克服现有技术的不足，提供一种防侧漏增压带式脱水装置，该装置可有效克服现有压滤机的跑泥、漏泥等现象，提高脱水效果，并可适应多种类污泥的脱水处理。The purpose of the present invention is to overcome the deficiencies of the prior art and provide a side leakage prevention pressurized belt dehydration device, which can effectively overcome the phenomenon of mud running and mud leakage in the existing filter press, improve the dehydration effect, and can It is suitable for the dehydration treatment of various kinds of sludge.
本发明的另一目的在于提供一种通过上述装置实现的防侧漏增压带式脱水方法。Another object of the present invention is to provide an anti-side leakage pressurized belt dehydration method realized by the above device.
本发明的技术方案为：一种防侧漏增压带式脱水装置，包括上滤网、下滤网、上履带、下履带和密封件，上滤网内侧设有上履带，下滤网内侧设有下履带，下滤网与下履带的接触面两侧边沿分别设有密封件，下滤网的中部呈凹槽结构，污泥物料位于凹槽内；下滤网水平设置，上滤网倾斜设于下滤网上方，沿污泥的输送方向，上滤网与下滤网之间的距离逐渐变小。其中，上滤网与下滤网之间的空间为压滤区域，密封件的设置使下滤网中部形成凹槽，凹槽位于压滤区域内，污泥物料位于凹槽中，污泥物料进入一个间隙持续变小的压滤区域，由于两侧被密封而无法产生跑泥现象，而运动前方的污泥物料由于被压的更密实，污泥物料也无法往前跑，并且污泥物料随着下履带的运行源源不断地往前移动，在压滤区域内的污泥物料也无法往后跑，使污泥物料在一个封闭区域内被压滤，即所谓的封闭压缩。The technical solution of the present invention is: an anti-side leakage pressurized belt-type dehydration device, including an upper filter screen, a lower filter screen, an upper crawler belt, a lower crawler belt and a sealing member. There is a lower crawler, and seals are provided on both sides of the contact surface between the lower filter and the lower crawler. The middle part of the lower filter has a groove structure, and the sludge material is located in the groove; the lower filter is set horizontally, and the upper filter It is installed obliquely above the lower filter screen, and along the conveying direction of the sludge, the distance between the upper filter screen and the lower filter screen gradually becomes smaller. Among them, the space between the upper filter screen and the lower filter screen is the filter press area, and the seal is set to form a groove in the middle of the lower filter screen, the groove is located in the filter press area, the sludge material is located in the groove, and the sludge material Entering a filter press area where the gap continues to shrink, the mud running phenomenon cannot occur because both sides are sealed, and the sludge material in front of the movement is pressed more densely, the sludge material cannot move forward, and the sludge material With the operation of the lower crawler belt continuously moving forward, the sludge material in the filter press area cannot run backward, so that the sludge material is press filter in a closed area, that is, the so-called closed compression.
所述密封件为弹性元件。The seal is an elastic element.
作为一种优选方案，所述密封件为套于下履带上的O型密封圈。O型密封圈套于下履带上，O型密封圈的上表面与下滤网相接触，O型密封圈和下滤网均跟随下履带的运行而运行。As a preferred solution, the seal is an O-ring sealed on the lower track. The O-shaped sealing ring is sleeved on the lower crawler belt, and the upper surface of the O-shaped sealing ring is in contact with the lower filter screen, and both the O-shaped sealing ring and the lower filter screen run following the operation of the lower crawler belt.
所述密封件为偶数个，对称分布于下滤网与下履带的接触面两侧边沿，接触面每侧边沿设有一个或多个的密封件；接触面每侧的密封件总宽度大于或等于上滤网和下滤网之间的最大偏离值。The seals are an even number, symmetrically distributed on both sides of the contact surface between the lower filter screen and the lower track, and one or more seals are provided on each side of the contact surface; the total width of the seals on each side of the contact surface is greater than or Equal to the maximum deviation between upper and lower screens.
所述下滤网与下履带的接触面两侧边沿上，接触面每侧边沿设有两个密封件或三个密封件；在同一侧上，相邻的两个密封件之间留有间隙，上滤网和下滤网对污泥物料进行压缩时，密封件伸展，且相邻两个密封件之间紧密相接。即密封件安装时，相邻两个密封件之间的距离，以密封件最大变形后密封件紧密相接为准，密封件高度控制在8-15mm。On the edges on both sides of the contact surface between the lower filter screen and the lower track, two seals or three seals are provided on each edge of the contact surface; on the same side, there is a gap between two adjacent seals , when the upper filter screen and the lower filter screen compress the sludge material, the seals are stretched, and the two adjacent seals are tightly connected. That is to say, when the seals are installed, the distance between two adjacent seals shall be subject to the tight connection of the seals after the maximum deformation of the seals, and the height of the seals shall be controlled at 8-15mm.
所述上滤网与下滤网之间的区域为压滤区域，密封件的高度为压滤区域出口高度的1.5～2倍。The area between the upper filter screen and the lower filter screen is a filter press area, and the height of the sealing member is 1.5 to 2 times the height of the outlet of the filter press area.
所述下滤网的上方设有布料器；上滤网的长度小于下滤网，布料器和上滤网分别位于下滤网的两端。通过布料器将污泥物料分布于下滤网上的凹槽内，再通过下履带带动其向前输送，进入压滤区域后，由带有安装夹角的上滤网和下滤网对污泥物料进行压滤，污泥物料中产生的水分由下滤网渗出，从而实现固液分离。其中，布料器可采用与现有压滤机相同结构的布料器。A distributor is arranged above the lower filter screen; the length of the upper filter screen is smaller than that of the lower filter screen, and the distributor and the upper filter screen are respectively located at two ends of the lower filter screen. The sludge material is distributed in the grooves of the lower filter through the distributor, and then driven forward by the lower crawler. After entering the filter press area, the sludge is collected by the upper filter and the lower filter with an installation angle. The material is press-filtered, and the moisture generated in the sludge material seeps out from the lower filter screen, thereby realizing solid-liquid separation. Wherein, the distributor can adopt the distributor with the same structure as the existing filter press.
所述上滤网与下滤网之间还设有角度调节机构。角度调节机构的具体结构与现有压滤机中所采用的角度调节机构结构相同。An angle adjustment mechanism is also provided between the upper filter screen and the lower filter screen. The specific structure of the angle adjustment mechanism is the same as that used in the existing filter press.
通过上述装置实现一种防侧漏增压带式脱水方法，具体为：下履带带动密封件及下滤网进行运动，上履带带动上滤网进行运动，污泥物料分布于下滤网中部的凹槽内，并随着下滤网的运行进行输送，随着上滤网与下滤网之间的距离逐渐变小，污泥物料中的水分被挤出并通过下滤网渗出，实现固液分离。A side leakage prevention pressurized belt dehydration method is realized through the above device, specifically: the lower crawler belt drives the seal and the lower filter screen to move, the upper crawler belt drives the upper filter screen to move, and the sludge material is distributed in the middle of the lower filter screen. In the groove, and transported with the operation of the lower filter, as the distance between the upper filter and the lower filter gradually becomes smaller, the water in the sludge material is squeezed out and seeps out through the lower filter to achieve Solid-liquid separation.
所述污泥物料中的水分被挤出的过程中，当水分渗出的速度小于上滤网与下滤网之间距离变小的速度时，污泥物料所受的压力会逐渐增大，污泥物料中的水分渗出的速度也会逐渐增大，此时污泥物料所受的压力呈现梯级变化；当水分渗出的速度大于上滤网与下滤网之间距离变小的速度时，则需要调高上滤网和下滤网的运行速度，同时也加快布料器布料速度，使水分渗出的速度小于上滤网与下滤网之间距离变小的速度。When the water in the sludge material is squeezed out, when the speed of water seepage is lower than the speed at which the distance between the upper filter screen and the lower filter screen becomes smaller, the pressure on the sludge material will gradually increase. The speed of water seepage in the sludge material will gradually increase, and the pressure on the sludge material will show a step change; when the speed of water seepage is greater than the speed of the distance between the upper filter and the lower filter , then it is necessary to increase the operating speed of the upper filter screen and the lower filter screen, and at the same time speed up the distributing speed of the distributor, so that the speed of water seepage is lower than the speed at which the distance between the upper filter screen and the lower filter screen becomes smaller.
本发明相对于现有技术，具有以下有益效果：Compared with the prior art, the present invention has the following beneficial effects:
本防侧漏增压带式脱水装置是在现有高压平面带式压滤机的结构基础上进行改进的，通过在下滤网底部设置密封件，使下滤网与上滤网之间形成封闭式的压滤区域，有效克服了现有压滤机容易产生跑泥、漏泥等现象的缺陷，提高脱水效果，同时还适应多种类污泥的脱水处理，有利于带式脱水机的推广和应用。This anti-side leakage pressurized belt dehydration device is improved on the basis of the structure of the existing high-pressure flat belt filter press. By setting a seal at the bottom of the lower filter screen, a seal is formed between the lower filter screen and the upper filter screen. The pressure filter area effectively overcomes the defects of existing filter presses that are prone to mud running and leakage, improves the dehydration effect, and is also suitable for the dehydration treatment of various types of sludge, which is conducive to the promotion and promotion of belt dehydrators. application.
将本防侧漏增压带式脱水装置及方法应用于污泥处理生产线，与现有的带式压滤机相比较，污泥物料所承受压力增加1MPa-3MPa，而脱水后污泥物料的干度增加5％-10％，其脱水效果明显得到改善。The anti-side leakage pressurized belt dehydration device and method are applied to the sludge treatment production line. Compared with the existing belt filter press, the pressure on the sludge material increases by 1MPa-3MPa, and the sludge material after dehydration The dryness increases by 5%-10%, and the dehydration effect is obviously improved.
附图说明Description of drawings
图1为本防侧漏增压带式脱水装置的结构示意图。Figure 1 is a schematic structural view of the anti-side leakage pressurized belt dehydration device.
图2为图1的A-A截面视图。Fig. 2 is a sectional view of A-A of Fig. 1 .
图3为图1的B-B截面视图。Fig. 3 is a B-B sectional view of Fig. 1 .
上述各图中，1为布料器，2为上履带，3为角度调节机构，4为上滤网，5为下滤网，6为下履带，7为密封件，8为污泥物料。In each of the above-mentioned figures, 1 is a distributor, 2 is an upper crawler belt, 3 is an angle adjustment mechanism, 4 is an upper filter screen, 5 is a lower filter screen, 6 is a lower crawler belt, 7 is a seal, and 8 is a sludge material.
具体实施方式Detailed ways
下面结合实施例，对本发明作进一步的详细说明，但本发明的实施方式不限于此。The present invention will be further described in detail below with reference to the examples, but the embodiments of the present invention are not limited thereto.
实施例1Example 1
本实施例一种防侧漏增压带式脱水装置，如图1所示，包括上滤网、下滤网、上履带、下履带和密封件，上滤网内侧设有上履带，下滤网内侧设有下履带，下滤网与下履带的接触面两侧边沿分别设有密封件，下滤网的中部呈凹槽结构，污泥物料位于凹槽内(如图2或图3所示)；下滤网水平设置，上滤网倾斜设于下滤网上方，沿污泥的输送方向，上滤网与下滤网之间的距离逐渐变小。其中，上滤网与下滤网之间的空间为压滤区域，密封件的设置使下滤网中部形成凹槽，凹槽位于压滤区域内，污泥物料位于凹槽中，污泥物料进入一个间隙持续变小的压滤区域，由于两侧被密封而无法产生跑泥现象，而运动前方的污泥物料由于被压的更密实，污泥物料也无法往前跑，并且污泥物料随着下履带的运行源源不断地往前移动，在压滤区域内的污泥物料也无法往后跑，使污泥物料在一个封闭区域内被压滤，即所谓的封闭压缩。The present embodiment is a kind of anti-side leakage pressurized belt type dehydration device, as shown in Figure 1, comprises upper filter screen, lower filter screen, upper crawler belt, lower crawler belt and sealing member, upper filter screen inner side is provided with upper crawler belt, lower filter screen The inner side of the screen is equipped with a lower track, and the two sides of the contact surface of the lower filter screen and the lower track are respectively provided with seals. The middle part of the lower filter screen is a groove structure, and the sludge material is located in the groove (as shown in Figure 2 or Figure 3 shown); the lower filter screen is set horizontally, the upper filter screen is installed obliquely above the lower filter screen, and along the sludge conveying direction, the distance between the upper filter screen and the lower filter screen gradually becomes smaller. Among them, the space between the upper filter screen and the lower filter screen is the filter press area, and the seal is set to form a groove in the middle of the lower filter screen, the groove is located in the filter press area, the sludge material is located in the groove, and the sludge material Entering a filter press area where the gap continues to shrink, the mud running phenomenon cannot occur because both sides are sealed, and the sludge material in front of the movement is pressed more densely, the sludge material cannot move forward, and the sludge material With the operation of the lower crawler belt continuously moving forward, the sludge material in the filter press area cannot run backward, so that the sludge material is press filter in a closed area, that is, the so-called closed compression.
其中，密封件为弹性元件。本实施例中，密封件采用O型密封圈。O型密封圈套于下履带上，O型密封圈的上表面与下滤网相接触，O型密封圈和下滤网均跟随下履带的运行而运行。密封件有六个，对称分布于下滤网与下履带的接触面两侧边沿，即接触面每侧边沿设有三个密封件；接触面每侧的密封件总宽度大于或等于上滤网和下滤网之间的最大偏离值，从而保证下滤网上的凹槽始终位于上滤网下方。在同一侧上，相邻的两个密封件之间留有间隙(如图3所示)，上滤网和下滤网对污泥物料进行压缩时，密封件伸展，且相邻两个密封件之间紧密相接(如图2所示)。即密封件安装时，相邻两个密封件之间的距离，以密封件最大变形后密封件紧密相接为准，密封件高度控制在8-15mm。上滤网与下滤网之间的区域为压滤区域，密封件的高度为压滤区域出口高度的1.5～2倍。本实施例中，各密封件的高度为10mm，压滤区域出口的高度为5mm。Wherein, the sealing element is an elastic element. In this embodiment, the sealing element is an O-ring. The O-shaped sealing ring is sleeved on the lower crawler belt, and the upper surface of the O-shaped sealing ring is in contact with the lower filter screen, and both the O-shaped sealing ring and the lower filter screen run following the operation of the lower crawler belt. There are six seals, which are symmetrically distributed on both sides of the contact surface between the lower filter screen and the lower track, that is, there are three seals on each side of the contact surface; the total width of the seals on each side of the contact surface is greater than or equal to that of the upper filter screen and the lower track. The maximum offset between the lower screens so that the grooves on the lower screen are always below the upper screen. On the same side, there is a gap between two adjacent seals (as shown in Figure 3). When the upper filter and the lower filter compress the sludge material, the seal stretches, and the two adjacent seals The parts are tightly connected (as shown in Figure 2). That is to say, when the seals are installed, the distance between two adjacent seals shall be subject to the tight connection of the seals after the maximum deformation of the seals, and the height of the seals shall be controlled at 8-15mm. The area between the upper filter screen and the lower filter screen is the filter press area, and the height of the seal is 1.5 to 2 times the height of the outlet of the filter press area. In this embodiment, the height of each sealing member is 10 mm, and the height of the outlet of the filter press area is 5 mm.
如图1所示，下滤网的上方还设有布料器；上滤网的长度小于下滤网，布料器和上滤网分别位于下滤网的两端。通过布料器将污泥物料分布于下滤网上的凹槽内，再通过下履带带动其向前输送，进入压滤区域后，由带有安装夹角的上滤网和下滤网对污泥物料进行压滤，污泥物料中产生的水分由下滤网渗出，从而实现固液分离。其中，布料器可采用与现有压滤机相同结构的布料器。As shown in Figure 1, a distributor is also provided above the lower filter screen; the length of the upper filter screen is smaller than that of the lower filter screen, and the distributor and the upper filter screen are respectively located at the two ends of the lower filter screen. The sludge material is distributed in the grooves of the lower filter through the distributor, and then driven forward by the lower crawler. After entering the filter press area, the sludge is collected by the upper filter and the lower filter with an installation angle. The material is press-filtered, and the moisture generated in the sludge material seeps out from the lower filter screen, thereby realizing solid-liquid separation. Wherein, the distributor can adopt the distributor with the same structure as the existing filter press.
上滤网与下滤网之间还设有角度调节机构。角度调节机构的具体结构与现有压滤机中所采用的角度调节机构结构相同。An angle adjustment mechanism is also arranged between the upper filter screen and the lower filter screen. The specific structure of the angle adjustment mechanism is the same as that used in the existing filter press.
实施例2Example 2
本实施例通过实施例1所述的装置实现一种防侧漏增压带式脱水方法，具体为：下履带带动密封件及下滤网进行运动，上履带带动上滤网进行运动，污泥物料分布于下滤网中部的凹槽内，并随着下滤网的运行进行输送，随着上滤网与下滤网之间的距离逐渐变小，污泥物料中的水分被挤出并通过下滤网渗出，实现固液分离。In this embodiment, the device described in
在污泥物料中的水分被挤出的过程中，当水分渗出的速度小于上滤网与下滤网之间距离变小的速度时，污泥物料所受的压力会逐渐增大，污泥物料中的水分渗出的速度也会逐渐增大，此时污泥物料所受的压力呈现梯级变化；当水分渗出的速度大于上滤网与下滤网之间距离变小的速度时，则需要调高上滤网和下滤网的运行速度，使水分渗出的速度小于上滤网与下滤网之间距离变小的速度，从而使污泥物料所受的压力始终保持呈现梯级变化，以保证污泥物料的脱水效果。When the water in the sludge material is squeezed out, when the speed of water seepage is lower than the speed of the distance between the upper filter and the lower filter, the pressure on the sludge material will gradually increase, and the sewage The speed of water seepage in the mud material will also gradually increase, and the pressure on the sludge material will show a step change; when the water seepage speed is greater than the speed of the distance between the upper filter and the lower filter , it is necessary to increase the operating speed of the upper filter and the lower filter, so that the speed of water seepage is lower than the speed of the distance between the upper filter and the lower filter, so that the pressure on the sludge material is always maintained. Step changes to ensure the dehydration effect of sludge materials.
如上所述，便可较好地实现本发明，上述实施例仅为本发明的较佳实施例，并非用来限定本发明的实施范围；即凡依本发明内容所作的均等变化与修饰，都为本发明权利要求所要求保护的范围所涵盖。As mentioned above, the present invention can be better realized. The above-mentioned embodiment is only a preferred embodiment of the present invention, and is not used to limit the scope of the present invention; Covered by the scope of protection required by the claims of the present invention.
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| CN110776235A (en) * | 2019-10-16 | 2020-02-11 | 陈沛霖 | Slurry Extrusion Dehydrator |
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| CN114956505B (en) * | 2022-05-26 | 2023-09-22 | 华南理工大学 | Cavity type deep dehydration device |
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| CN104248878B (en) * | 2014-09-16 | 2016-10-05 | 华南理工大学 | A kind of high voltage planar belt type dehydration device |
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