CN2617458Y

CN2617458Y - Caterpiller filter

Info

Publication number: CN2617458Y
Application number: CN 03250829
Authority: CN
Inventors: 陈放业
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-05-09
Filing date: 2003-05-09
Publication date: 2004-05-26
Anticipated expiration: 2013-05-09

Abstract

The utility model relates to a filter machine of track-type which is used in separating solid and liquid, particularly used in separating solid and liquid continuously. The filter machine comprises a group of filtering plates which can be moved continuously on the upper and lower guide-way and a vacuum box is arranged on the bottom of the filtering plate. Besides, the filter machine comprises a filtering cloth which is supported by a supporting roll and a pressing roll and can be moved along a ring-belt, and also comprises a washing device, a tension device and a rectification device of the filtering cloth. The filter machine is characterized that the bottoms of the vacuum boxes of filtering plates which are on the filtering section are on the same surface which is a sealed surface matched with the surface of the guide-way on the machine bracket completely. Besides, a plurality of holes and ports which can be connected with the vacuum box and the drain pipe are arranged on the surfaces of the guide-ways on the bottom of the vacuum box and the machine bracket respectively. Thus, the utility model solves the problem that the current same type of filter machine has low filtering efficiency because the dynamic seal between the filtering plate and the vacuum box is not reliable and the attachment between the filtering cloth and the filtering plate is not tight. Also the utility model solves the problem that the filter can not continue because the rectification is not satisfying during the operation of the filtering cloth.

Description

The crawler type filter

Technical field

The utility model relates to a kind of filter plant that is used for Separation of Solid and Liquid, especially a kind of vacuum filter that is used for separating continuously solid-liquid.

Background technology

Chinese patent 93215539.1 disclosed " continuous mobile dribbling filter ", but it contains driving-belt that the annular level that driven by transmission device moves continuously, one group of filter disc, one by the backing roll supporting and by the filter cloth of the endless belt formula of pressure roller pressure holding, and be used to aspirate the vacuum tank of filtrate and wash mill, tensioning apparatus, the deviation correcting device of filter cloth, its shortcoming is: 1) its filter disc be by its bottom pipe be communicated with vacuum tank, movable sealing between the two is unreliable, so occur easily leaking filter efficiency is descended; 2) in filter process, because of the applying imprecision of filter cloth and filter disc influences filter effect; 3) deviation correcting device of filter cloth is one group of guide roller, and it can only lead with friction mode, so the effect of correction is also undesirable.

Summary of the invention

The utility model is to overcome the shortcoming that exists in the above-mentioned prior art, provides a kind of filter efficiency high crawler type filter, and make it have rational in infrastructure reliable, installation and maintenance convenient and characteristics such as long service life.

The utility model crawler type filter, it contain one group get on the right track and lower railway on move continuously and the filter disc of bottom band vacuum box, one are supported with pressure holding by backing roll and pressure roller and make the filter cloth that the endless belt formula moves, and the wash mill of filter cloth, tensioning apparatus, deviation correcting device, be characterized in: at each filter disc that filters on the active section, copline at the bottom of the box of their vacuum box, this plane is a sealing surface that the orbital plane with frame fits like a glove, and is being respectively equipped with through hole and the port that vacuum box is communicated with drain pipe at the bottom of the box and on the orbital plane of frame.

The utility model crawler type filter also can have sealing gasket at the bottom of the box of vacuum box and between the orbital plane of frame.

The utility model crawler type filter, it also has the baffle plate device that a cover can make filter cloth tightly fit with filter disc in filtering active section, this device comprises one group of dividing plate, one group to be done in supporting guide and riser guide and the synchronous motion of filter disc and the movable stand of elevating movement, the tooth bar that is provided with at the movable stand top simultaneously, and one is meshed and the sector affixed with a dividing plate with this tooth bar.

The utility model crawler type filter, its deviation correcting device include two locating wheels that its that install axially have spring on frame, be installed in one group of correction seed between two locating wheels, be set on rope in the seed centre bore of respectively rectifying a deviation, fixing and be fixed on positioning belt on the filter cloth again simultaneously on the ropes between the two correction seeds.

The beneficial effects of the utility model: 1) because of at the bottom of the box that filters each the filter disc vacuum box on the active section, it is a smooth seal face that the orbital plane with frame fits like a glove, so guarantee vacuum box through hole and the movable sealing between the drain pipe port, make the vacuum suction filter process not have the raising of leakage, filter efficiency, do not have leakage pollution yet; 2) on filtering the filter cloth of active section, be provided with baffle plate device after, the applying efficient tight, that filter between filter cloth and the filter disc is further improved; 3) deviation correcting device in the utility model is to make its direction of motion accurate by the pressure location to the filter cloth side direction, thereby guarantees that filter process continues, carries out reliably, and improves again the service life of filter cloth.

Description of drawings

Fig. 1, Fig. 2 are respectively the structure diagrams of the utility model crawler type filter, and wherein Fig. 1 is that front view, Fig. 2 are vertical views;

Fig. 3 and Fig. 4 are A among Fig. 1 to view, and wherein Fig. 3 is that upper junction composition, Fig. 4 among Fig. 1 are the lower junction compositions among Fig. 1;

Fig. 5 is the B-B cutaway view among Fig. 3;

Fig. 6 is the C-C cutaway view of deviation correcting device 12 among Fig. 1;

Fig. 7 is the D-D cutaway view among Fig. 6;

Label declaration among the figure: 1-filter cloth; The 2-filter disc; The 2a-vacuum box; The 2b-through hole; 2c-side tooth bar; The 3a-dividing plate; The riser guide of 3b-dividing plate; The 3c-movable stand; The 3d-tooth bar; The 3e-sector; The 3f-driving-chain; The supporting guide of 3g-dividing plate; The 3h-elastic layering; The orbital plane of 4-frame; The 4a-port; 5-gets on the right track; The 6-sealing gasket; The 7-vibrating wheels; The 8-tensioning apparatus; The 9-wash mill; The 10-lower railway; 11-filter disc cleaning device; The 12-deviation correcting device; The 12a-locating wheel; The 12b-positioning belt; The 12c-rope; The 12d-seed of rectifying a deviation; The 12e-spring; The 13-backing roll; The 14-pressure roller; The 15-drain pipe; The 16-drive roll.

The specific embodiment

The structure of embodiment 1. present embodiment crawler type filters can be seen from Fig. 1, Fig. 2 and Fig. 5, it contain one group get on the right track 5 and lower railway 10 on the filter disc that moves continuously 2, one support with pressure holding by backing roll 13 and pressure roller 14 and make the filter cloth 1 that the endless belt formula moves, and the cleaning device 11 of the wash mill 9 of filter cloth, tensioning apparatus 8, deviation correcting device 12, vibrating wheels 7 and filter disc.Wherein the bottom of each filter disc all has vacuum box 2a, and at the bottom of each the vacuum box box that filters on the active section, all be positioned at same plane, the orbital plane 4 of this plane and frame fits like a glove and seals, the orbital plane 4 that has through hole 2b, frame at the bottom of the box of vacuum box 2a is provided with port 4a, so that vacuum box 2a and drain pipe 15 is communicated with and do not have a leakage.Have sealing gasket 6 at the bottom of the vacuum box box in the present embodiment and on the sealing surface between the orbital plane, the sealing face is with bonding or on be fixed on the box of vacuum box with the screw ways of connecting at the bottom of, and along with vacuum box moves together.

The sealing surface at place also can be an arcwall face that matches with the rack rail face, but its processing and manufacturing bothers than the plane at the bottom of each vacuum box box on the filtration active section.

The course of work of present embodiment crawler type filter is as follows: filter disc 2 obtains power by the side tooth bar 2c that has on its sidewall from the travelling gear (being represented the figure) with its engagement, and get on the right track 5 and lower railway 10 on move continuously; Filter cloth 1 was driven by the drive roll on the frame 16 in when start, and made the endless belt formula and move under the support of backing roll 13 and pressure roller 14 and pressure holding; Slurry to be filtered filter upper left side from Fig. 1 is rendered on the filter cloth that is supported by filter disc, under the differential pressure action up and down of filter cloth, filter disc, filtrate through at the bottom of vacuum box 2a, the vacuum box box and the sealing surface between the rack rail face 4, drain pipe 15 enter gas-liquid separator (being represented among the figure); And after slurry blotted, the filter cloth that carries the solid material separated with filter disc, and the solid material separates, finishes discharging with filter cloth under gravity and vibrating wheels 7 effects.At this moment filter cloth 1 is got back to the original place through tensioning apparatus 8, wash mill 9 and deviation correcting device 12; Filter disc 2 enters lower railway 10 after separating with filter cloth 1, it gets on the right track on 5 through returning behind the filter disc cleaning device 11, repeats above-mentioned filter process again after fitting with filter cloth 1.In filter process, because of copline at the bottom of each vacuum box box increase and the rack rail face between sealing reliability, so filter efficiency improves greatly.

Embodiment 2. present embodiment crawler type filters, its structure can be seen from Fig. 1～Fig. 3, different is with embodiment 1 for it: it also have a cover can make filter cloth in filtering active section with the tight baffle plate device of fitting of filter disc, this device comprises one group of dividing plate 3a, one group and make motion and the movable stand 3c of elevating movement, the tooth bar 3d that at movable stand top be provided with synchronous with filter disc simultaneously in supporting guide 3b and riser guide 3g, and one mesh with this tooth bar and with a sector 3e that dividing plate is affixed.

Movable stand 3c does on supporting guide 3b and the synchronous motion of filter disc by driving-chain 3f, meanwhile, it also does elevating movement on not contour riser guide 3g, for example when entering the filtration active section, the height of riser guide changes a high position over to by low level and movable stand is constantly risen in advancing, its top tooth bar 3d makes dividing plate downward by the sector 3e with its engagement, and two filter discs are separated before and after filter cloth and filter disc are fitted closely and made, to improve filter efficiency; If on non-fillter section, because of the height of riser guide by a high position change low level over to, movable stand descends, tooth bar 3d constantly upwarps dividing plate by sector 3e, thereby throws off filter cloth, do not influence the separation of filter cloth with filter disc.

Baffle plate device in the present embodiment also can connect elastic layering 3h on the end limit of pressing close to filter cloth of dividing plate 3a, this elastic layering can impose elastic force to filter cloth wrinkling or sclerosis, guarantees that the applying of filter cloth and filter disc is tight.

Embodiment 3. present embodiment crawler type filters, its structure can see from Fig. 1, Fig. 6 and Fig. 7, and deviation correcting device 12 includes two locating wheel 12a that its that install axially have spring 12e on frame, be installed in one group of correction seed 12d between two locating wheels, be set on rope 12c in the seed centre bore of respectively rectifying a deviation, fixing and be fixed on positioning belt 12b on the filter cloth 1 again simultaneously on the ropes between the two correction seeds.To the pressure of filter cloth side direction location, effectively prevented filter cloth sideslip in circular flow by positioning belt, guarantee filter process continue carry out, and prevent the too early damage of filter cloth.

Claims

1, a kind of crawler type filter, it contains one group of filter disc (2) of going up continuously mobile and bottom band vacuum box (2a) at get on the right track (5) and lower railway (10), one is supported with pressure holding by backing roll (13) and pressure roller (14) and to make the filter cloth (1) that the endless belt formula moves, and the wash mill of filter cloth (9), tensioning apparatus (8), deviation correcting device (12), it is characterized in that: at each filter disc that filters on the active section, copline at the bottom of the box of their vacuum box (2a), this plane is a sealing surface that the orbital plane with frame fits like a glove, and is being respectively equipped with through hole (2b) and the port (4a) that vacuum box is communicated with drain pipe (15) at the bottom of the box and on the orbital plane of frame (4).

2, crawler type filter according to claim 1 is characterized in that: have sealing gasket (6) at the bottom of the box of said vacuum box (2a) and between the orbital plane (4) of frame.

3, crawler type filter according to claim 1 and 2, it is characterized in that: it also has the baffle plate device that a cover can make filter cloth (1) tightly fit with filter disc (2) in filtering active section, this device comprises one group of dividing plate (3a), one group to be done in supporting guide (3b) and riser guide (3g) and the synchronous motion of filter disc and the movable stand (3c) of elevating movement, the tooth bar (3d) that is provided with at the movable stand top simultaneously, and one mesh with this tooth bar and with a sector (3e) that dividing plate is affixed.

4, crawler type filter according to claim 1 and 2 is characterized in that: said deviation correcting device (12) includes two locating wheels (12a) that its that install axially have spring (12e) on frame, be installed in one group of correction seed (12d) between two locating wheels, be set on rope (12c) the seed centre bore of respectively rectifying a deviation in, fix and be fixed on simultaneously again the positioning belt (12b) on the filter cloth (2) on the ropes between the two correction seeds.

5, crawler type filter according to claim 3 is characterized in that: said deviation correcting device (12) includes two locating wheels (12a) that its that install axially have spring (12e) on frame, be installed in one group of correction seed (12d) between two locating wheels, be set on rope (12c) the seed centre bore of respectively rectifying a deviation in, fix and be fixed on simultaneously again the positioning belt (12b) on the filter cloth (2) on the ropes between the two correction seeds.