CN103230695A

CN103230695A - Method and special equipment for preventing scaling of filter block

Info

Publication number: CN103230695A
Application number: CN2013101166156A
Authority: CN
Inventors: 张洪亮
Original assignee: HANGZHOU CHEMICAL MACHINERY CO Ltd
Current assignee: HANGZHOU CHEMICAL MACHINERY CO Ltd
Priority date: 2013-04-03
Filing date: 2013-04-03
Publication date: 2013-08-07
Anticipated expiration: 2033-04-03
Also published as: CN103230695B

Abstract

The invention relates to solid-liquid separation and filtration method and equipment, especially to a method and special equipment for preventing scaling of a filter block. The invention mainly aims to overcome the technical problems of formation of a solid particle again by a filtered filtrate, low productivity of continuous solid-liquid separation and filtration equipment, easy damage of a filtering medium, high maintenance cost of the equipment and the like caused by temperature drop precipitation or a secondary reaction of a material in the process of filtering in the prior art. The method provided by the invention comprises arrangement of a vibration exciter on operation parts of the separation and filtration equipment and usage of a revolving slip ring for controlling the vibration exciter to carry out vibration in an appropriate separation and filtration active region, thereby allowing a material to be incapable of adhering on the filter block.

Description

A kind of method and special equipment that prevents the filter element fouling

Technical field

The present invention relates to a kind of Separation of Solid and Liquid filter method and equipment, especially relate to a kind of method and special equipment that prevents the filter element fouling.

Background technology

Along with industrialization, maximization production requirement, various continuous solid-liquid separation filtration equipments progressively replace sedimentation separation and intermittent filtration separate mode.But a lot of materials still can't adopt continuous solid-liquid separation filtration equipment, trace it to its cause much is that temperature drop is separated out or secondary response because material occurs in filter process, cause filtrate filtered to form solid particle again, these materials fouling on filter element (hardening), for example: filter chamber, the end, filter medium support orifice plate and filter medium itself, make equipment lose the isolated by filtration performance, the frequent cleaning of stopping, driving rate reduces greatly, cause under the continuous solid-liquid separation filtration equipment production capacity, the filter medium rapid wear, maintenance cost is high.Thereby how to guarantee not fouling and eliminate the filter medium sclerosis of hardening and seem particularly outstanding on filter element of material.

Summary of the invention

The present invention provides a kind of method and special equipment that prevents the filter element fouling, it mainly is to solve the existing in prior technology material to occur in filter process that temperature drop is separated out or secondary response, cause filtrate filtered to form solid particle again, cause under the continuous solid-liquid separation filtration equipment production capacity, the filter medium rapid wear, the technical problem of the high grade of maintenance cost.

Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:

A kind of method that prevents the filter element fouling of the present invention, it is characterized in that described method comprises: the operation parts at separating and filtering equipment arrange vibrator, adopt the internal vibration between the suitable active region of separating and filtering of revolution slip ring control vibrator, make material to adhere at filter element.

As preferably; the power consumption of described vibrator is 500W-1200W; quality according to filter element is selected suitable power; frequency is for dividing 2 sections; 15KHZ-20KHZ and 45HZ-65HZ, but can adopt the injury-free while noise of frequency protection device of 15KHZ-20KHZ little to the little mass filter spare of thin-walled, and large-scale filter element is adopted 45HZ-65KHZ; confirmed by the device detection resonant frequency, adopt little amplitude resonance frequency operation to reach the purpose that device does not damage, noise is little in conjunction with power.

Use revolution slip ring control vibrator in 1 all 360 degree scopes, certain interval angle starts vibrator.

As preferably, described vibrator filter element blot between interval, discharge zone, the interval internal vibration work of filter cloth regeneration.Can cause the particle leakage to increase in reinforced vibration of filtering interruption, cause filter cake to pile up closely knit increase liquid simultaneously and pass through resistance; But forming the later stage at filter cake is that filter cake blots (drying) stage, because vibration can reduce rate of cake moisture content; And the auxiliary discharging of device vibrational energy between discharge zone; For example during the washing and filtering medium, the device vibration can play auxiliary regeneration effect equally in the filter cloth regeneration interval.

A kind of filter element fouling special equipment that prevents, comprise filter, described filter is provided with filtering table, and the filter middle part is provided with the central dispense valve, the central dispense valve is provided with the revolution slip ring, and the revolution slip ring is connected with vibrator, frequency generator respectively by circuit.Filter can be revolving-leaf type filter, and a plurality of filtering tables are set on it.The effect of frequency generator is to prevent that material becomes hardened layer in the wall fouling in the filter process, and filtrate enters behind the chamber, the end because temperature drop is separated out chamber, the end wall fouling sclerosis that is deposited in support filter plate and filtrate flow warp with secondary response.

As preferably, described vibrator is installed in the bottom of filtering table, can make filter disc produce vibration like this, prevents that material from adhering to.Each filtering table has a vibrator.

As preferably, described filter is provided with between charging zone, between filtering area, between scrubbing section, blot between interval, discharge zone, the filter cloth regeneration interval, vibrator is blotting between interval, discharge zone, is turning round the slip ring energising when filter cloth regeneration is interval, and vibrator drives the filter disc vibration.

Therefore, the present invention arranges vibrator at the operation parts of separating and filtering equipment, adopts revolution slip ring control vibrator to vibrate between the suitable active region of separating and filtering, makes material to adhere at filter element, reduces or elimination fouling and the phenomenon that hardens.

Description of drawings

Accompanying drawing 1 is a kind of structural representation of the present invention;

Accompanying drawing 2 is plan structure schematic diagrames of Fig. 1.

Parts, position and numbering among the figure: between filter 1, filtering table 2, central dispense valve 3, revolution slip ring 4, circuit 5, vibrator 6, frequency generator 7, charging zone 8, between filtering area 9, between scrubbing section 10, blot between interval 11, discharge zone 12, filter cloth regeneration interval 13.

The specific embodiment

Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.

Embodiment: a kind of method that prevents the filter element fouling of this example, its method is: the operation parts at separating and filtering equipment arrange vibrator, adopt the internal vibration between the suitable active region of separating and filtering of revolution slip ring control vibrator, make material to adhere at filter element.The power consumption of vibrator is 500W-1200W according to device weight 400-800KG, and the employing resonant frequency is 50-60HZ.Vibrator filter element blot between interval, discharge zone, the interval internal vibration work of filter cloth regeneration.

A kind of filter element fouling special equipment that prevents, as Fig. 1, Fig. 2, comprise filter 1, filter is revolving-leaf type filter, filter is provided with filtering table 2, the filter middle part is provided with central dispense valve 3, and the central dispense valve is provided with revolution slip ring 4, and the revolution slip ring is connected with vibrator 6, frequency generator 7 respectively by circuit 5.Vibrator is installed in the bottom of filtering table.Filter is provided with between charging zone 8, between filtering area 9, between scrubbing section 10, blot between interval 11, discharge zone 12, filter cloth regeneration interval 13, vibrator is blotting between interval, discharge zone, is turning round the slip ring energising when filter cloth regeneration is interval, and vibrator drives the filter disc vibration.

Its running is as follows: vibrator 6 revolves round the sun around central dispense valve 3 on filtering table 2, revolution slip ring 4 is rotation synchronously also, filtering table revolve round the sun finished in 1 week reinforced, filter, wash, blot, discharging, filter cloth regeneration circulation, blot, discharging, filter cloth regeneration interval make vibrator work by frequency generator 7 through revolution slip ring 4, the vibration of drive filtering table prevents that fouling (hardening) from producing.

The above only is specific embodiments of the invention, but architectural feature of the present invention is not limited thereto, and any those skilled in the art is in the field of the invention, and the variation of doing or modify all is encompassed among the claim of the present invention.

Claims

1. method that prevents the filter element fouling, it is characterized in that described method comprises: the operation parts at separating and filtering equipment arrange vibrator, adopt the internal vibration between the suitable active region of separating and filtering of revolution slip ring control vibrator, make material to adhere at filter element.

2. a kind of method that prevents the filter element fouling according to claim 1, the power consumption that it is characterized in that described vibrator is 500W-1200W, frequency is 15KHZ-20KHZ and 45HZ-65HZ.

3. a kind of method that prevents the filter element fouling according to claim 1, it is characterized in that described vibrator filter element blot between interval, discharge zone, the interval internal vibration work of filter cloth regeneration.

One kind according to claim 1-3 described use prevents the special equipment of filter element fouling method, comprise filter (1), it is characterized in that described filter (1), filter is provided with filtering table (2), the filter middle part is provided with central dispense valve (3), the central dispense valve is provided with revolution slip ring (4), and the revolution slip ring is connected with vibrator (6), frequency generator (7) respectively by circuit (5).

5. a kind of filter element fouling special equipment that prevents according to claim 4 is characterized in that described vibrator (6) is installed in the bottom of filtering table (2).

6. a kind of filter element fouling special equipment that prevents according to claim 4, it is characterized in that described filter (1) is provided with between charging zone between (8), filtering area (10) between (9), scrubbing section, blots (12) between interval (11), discharge zone, filter cloth regeneration interval (13), vibrator (6) is blotting between interval, discharge zone, is turning round slip ring (4) energising when filter cloth regeneration is interval, and vibrator drives filter disc (2) vibration.