CN212369729U

CN212369729U - Tank-type filter device and filter device with reciprocating grid members

Info

Publication number: CN212369729U
Application number: CN201922421277.2U
Authority: CN
Inventors: 黄胜驰
Original assignee: Fujian Yunkang Intelligent Technology Co ltd
Current assignee: Fujian Yunkang Intelligent Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2021-01-19
Anticipated expiration: 2029-12-27

Abstract

A trough-type filtration device with a reciprocating grate member, comprising: a filtrate tank, a tank-type filter; the filtrate tank is used for receiving filtrate filtered from the tank-type filter body; cell-type filter body includes: a starting wall, a bottom, a side wall, a back wall; the starting end wall and the bottom are integrally formed by grid components; the side wall comprises at least one group of side plates and is formed by upwards extending grid bars at the left side and the right side; after the materials enter the groove-type filter body, the filter slits are ensured to be unobstructed through the reciprocating circular motion of the movable grid bars, and the filtrate is discharged into the filtrate groove from the filter slits as far as possible. The utility model discloses the filtration passageway is many, and the filter effect is good, simple structure, and stability is strong, is applicable to multiple use occasions such as the refilter of grid, sediment, mud preconcentration, dehydration and filtrating.

Description

Tank-type filter device and filter device with reciprocating grid members

[ technical field ] A method for producing a semiconductor device

The invention belongs to the technical field of solid-liquid separation equipment, and particularly relates to a groove type filtering device with a reciprocating grid member and a filtering device.

[ background of the invention ]

The solid-liquid separation equipment is mainly applied to sewage treatment plants, chemical plants, laboratories, starch separation, slurry treatment and the like. Solid-liquid separation equipment is divided into a sand settling machine, a grid machine, a thickener, a dehydrator and the like according to the properties of materials to be treated and different purposes to be treated.

Different industry fields have different requirements for equipment. The solid-liquid separation equipment has wide related fields, and the selection of proper equipment can achieve the effect of twice the effort. For example, in the slurry treatment, solid-liquid separation equipment such as a sand settling machine, a plate-and-frame dehydrator and the like can be used because the treatment capacity is large, the solid content is high, the specific gravity of solid residues of the slurry is large, and the settling separation is easy. And aiming at the residual activated sludge of the municipal sewage treatment plant, a multi-channel solid-liquid separation combined process can be adopted, firstly, a sand settling device is used for separating silt which has large specific gravity and is easy to settle, then, a grid machine is used for removing floating matters with larger particles in the water body, the suspended matters remained in the water body are added with drugs for flocculation, and a concentration dehydrator is used for further pressure filtration and dehydration.

JP2005-118662A, JP2004-888A discloses a solid-liquid separation device, mainly used for concentration of flocculated sludge, wherein a filtering channel is mainly a platform formed by a reciprocating grid member, the filtering channel is few, the filtering efficiency is poor, the effect is poor, and the problem of material overflow when the feeding speed is higher than the filtering speed is also considered. The middle position above the platform uses the pressure plate, the purpose is to further reduce the water content of the solid slag, but the grid bars are not suitable for pushing the material under the condition of resistance and the pressure plate is easy to stick the material, so that the solid slag is prevented from passing through.

[ summary of the invention ]

One of the technical problems to be solved by the present invention is to provide a groove-type filtering device with a reciprocating grid member, which has a good filtering effect.

The second technical problem to be solved by the present invention is to provide a filtering device with a reciprocating grid member with good filtering effect.

The invention is realized by the following steps:

a trough-type filtration device with a reciprocating grate member, comprising: a filtrate tank, a tank-type filter;

the filtrate tank is used for receiving filtrate filtered from the tank-type filter body;

the cell-type filter body includes: a starting wall, a bottom, a side wall, a back wall;

the wall and the bottom of the starting end are integrally formed by grid components;

the grid bar component is formed by alternately laminating and laying two or more groups of grid bars; every two adjacent grid bars of the same group of grid bars are separated by a gasket, and the thickness of the gasket is greater than that of the other group of grid bars, so that a filter seam is formed; at least one group of grid bars are movable grid bars, relative displacement is generated relative to the other group of grid bars, and each group of movable grid bars is ensured to do reciprocating circular motion; two or more series connection holes are arranged at the front and rear balanced positions on each group of movable grid bars; each group of movable grid bars are connected into a movable body through a serial connection rod penetrating through the serial connection holes; each movable body guides and drives all the movable grids of the group to generate reciprocating circular motion with the same motion track through a driving device;

the side wall comprises at least one group of side plates and is formed by upwards extending grid bars on the left side and the right side;

after the materials enter the groove-type filter body, the filter slits are ensured to be unobstructed through the reciprocating circular motion of the movable grid bars, and the filtrate is discharged into the filtrate groove from the filter slits as far as possible.

Furthermore, the initial wall, the bottom and the rear wall are integrally formed by the grid component;

the height of the rear wall is lower than the height of the start wall and the side walls;

after the materials enter the tank body type filtering body, filtrate is discharged into the filtrate tank from the filtering slits, and the materials with more solid content remained in the tank body type filtering body overflow the upper edge part of the end wall to be discharged.

Further, the length of the bottom is greater than the width of the side wall;

the rear wall is a flow-limiting baffle, and a gap is formed between the flow-limiting baffle and the bottom;

the starting end wall, the side wall and the flow limiting baffle enclose a groove body, and the bottom extends out of the groove body;

after the materials enter the groove-type filter body, the filter slits are ensured to be unobstructed through the reciprocating circular motion of the movable grid bars, filtrate is discharged into the filter liquid groove from the filter slits as far as possible, the materials with more solid content remained in the groove-type filter body pass through the gaps and are continuously transported towards the tail end of the bottom, the materials are further filtered before reaching the tail end of the bottom, and the final materials are discharged from the tail end of the bottom;

the movable grate bars make a reciprocating circular motion upwards, forwards, downwards, backwards and upwards, wherein forwards is directed in the opposite direction to the initial end wall, and backwards is directed in the direction of the initial end wall, so that the materials are ensured to pass through the gap, and then are continuously filtered on the bottom and transported to the tail end of the bottom to be discharged.

Furthermore, the side wall comprises two groups of side plates which are formed by upwards extending two groups of grid bars on the left side and the right side;

at least one group of side plates are driven by a corresponding group of movable grid bars to do reciprocating circular motion, and two side plates positioned on the same side are mutually close to each other and generate relative displacement;

each side plate is provided with a filtering channel, and the filtering channels are kept smooth by the relative displacement of the side plates which are positioned on the same side and are close to each other.

Further, the driving device includes: a group of driving central shafts, a group of guiding grid bars and a group of driving mechanisms;

the group of driving central shafts comprises at least two driving central shafts;

the group of guide grid bars comprises at least two guide grid bars which are positioned at the left and right balance positions of the grid bar component; each guide grid bar is provided with at least two first eccentric devices which are positioned at the front and back balance positions of the grid bar component, and the driving central shaft penetrates through the first eccentric devices corresponding to the left and right of the group of guide grid bars; each guide grid is provided with at least two fixed holes, and the positions of the fixed holes are consistent with those of the series connection holes on the movable grid; the fixed holes on the guide grid bars and the serial holes of the movable grid bars are fixedly connected in series through the same serial connecting rod; the eccentric directions of the first eccentric devices on the guide grid bars connected with the same group of movable grid bars are consistent, and the eccentric shaft distances are consistent; the eccentric directions of the first eccentric devices on the guide grid bars connected with different groups of movable grid bars are opposite, and the eccentric shaft distances are consistent;

the group of driving mechanisms comprises a driving motor and a transmission mechanism or a plurality of driving motors; the group of driving mechanisms drive the group of driving central shafts to realize the same steering and rotating speed;

the group of driving mechanisms drive the group of driving central shafts to synchronously move and respectively drive the guide grid bars sleeved on the group of driving central shafts to move, and the guide grid bars drive the same group of movable grid bars connected with the guide grid bars to do reciprocating circular motion with the same motion trail.

Further, still include: the number of the flow limiting baffles is at least two;

two sides of at least two flow-limiting baffles are respectively fixedly connected with the side plates of different groups.

Furthermore, the bottom of each flow-limiting baffle is movably connected with a movable plate which is inclined towards the interior of the tank-type filter body through a plurality of hinges;

when the movable plate moves to the lowest point, the movable plate is close to the other group of grid bars at the highest point.

Furthermore, a rolling device is arranged above the grid between the flow-limiting baffle and the tail end of the bottom;

the rolling device is driven by a rolling driving device to do reciprocating circular motion.

Further, the crushing drive device comprises: the rolling driving device comprises a group of rolling driving central shafts, at least one rolling guide plate and at least two gear redirectors;

the rolling driving central shafts comprise at least two rolling driving central shafts; the group of rolling driving central shafts are fixed through at least one fixing device;

the rolling guide plate is provided with at least two second eccentric devices, and each second eccentric device is internally provided with one rolling driving central shaft in a penetrating way;

the first output end of each gear steering gear penetrates through the rolling driving central shaft, and the second output end of each gear steering gear penetrates through the driving central shaft;

the driving center shaft passes through the gear steering ware drive roll the driving center shaft and rotate, roll the driving center shaft and pass through the second eccentric device drives roll the guide plate motion, roll the direction of motion of guide plate and the direction of motion of the bottom of cell body is certain angle, makes roll the guide plate drive rolling device rolls the action to the material.

A filter apparatus with a reciprocating grate member comprising: the rolling machine comprises a filtering platform consisting of grid members and a rolling device arranged above the filtering platform; the grid bar component is formed by alternately laminating and laying two or more groups of grid bars; every two adjacent grid bars of the same group of grid bars are separated by a gasket, and the thickness of the gasket is greater than that of the other group of grid bars, so that a filter seam is formed; at least one group of grid bars are movable grid bars, relative displacement is generated relative to the other group of grid bars, and each group of movable grid bars is ensured to do reciprocating circular motion; two or more series connection holes are arranged at the front and rear balanced positions on each group of movable grid bars; each group of movable grid bars are connected into a movable body through a serial connection rod penetrating through the serial connection holes; each movable body guides and drives all the movable grids of the group to generate reciprocating circular motion with the same motion track through a driving device; the rolling device is driven by a rolling driving device to do reciprocating circular motion to roll the materials on the filtering platform.

The invention has the advantages that:

1. the filter channel is many, and the filter effect is good.

2. The bottom slag discharging mode has simple structure and strong stability.

3. The power consumption is small.

4. The method is suitable for various use occasions such as grating, sand settling, sludge pre-concentration, dehydration, filtrate re-filtration and the like.

5. Due to the wide application range and the outstanding performance, the filtering efficiency and the effect of each processing section can be improved, and the device is more suitable for being used on movable integrated equipment.

[ description of the drawings ]

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic overall configuration diagram of a first embodiment of the present invention.

Fig. 2 is a top view of the overall structure of the first embodiment of the present invention.

Fig. 3 is an exploded view of the overall structure of the first embodiment of the present invention.

Fig. 4 is a schematic structural view of the trough-type filter in the first embodiment of the present invention.

Fig. 5 is an exploded view of the trough-type filter according to the first embodiment of the present invention.

Fig. 6 is an overall structural view of the second embodiment of the present invention.

Fig. 7 is a top view of the overall structure of a second embodiment of the present invention.

Fig. 8 is an exploded view of the overall structure of the second embodiment of the present invention.

Fig. 9 is a schematic structural view of a trough-type filter (with the rear wall removed) in a second embodiment of the invention.

Fig. 10 is an exploded view of the trough-type filter (with the rear wall removed) in the second embodiment of the present invention.

Fig. 11 is a schematic view showing a positional relationship between a driving center shaft and a rolling driving center shaft in the second embodiment of the present invention.

[ detailed description ] embodiments

The first embodiment:

the filter device of the embodiment is suitable for the material with stronger fluidity, such as pre-concentration between the flocculation mixing process and the dehydrator process.

As shown in fig. 1 to 5, a tank type filtering apparatus with a reciprocating grid member includes: a filtrate tank 1 and a tank type filter body 2 arranged in the filtrate tank 1.

The tank-type filter 2 includes: a start wall 21, a bottom 22, side walls 23, a back wall 24.

The start wall 21, bottom 22 and rear wall 24 are integrally formed as a grate member.

The grid member is formed by alternately laminating and laying two sets of AB grids A31 and B31. The adjacent grids of the same group of grids are separated by a spacer 32, and the thickness of the spacer 32 is larger than that of the other group of grids, so that filter gaps are formed. And the two groups of grid bars AB are movable grid bars, and the two groups of grid bars AB generate relative displacement when moving, so that each group of movable grid bars is ensured to do reciprocating circular motion. Three series connection holes 33 are arranged at the front and rear balanced positions on each group of movable grid bars; each group of movable grids are connected into a movable body through a serial connection rod 34 penetrating through the serial connection hole 33; each movable body is guided and driven by a driving device to generate reciprocating circular motion with the same motion track.

A drive device, comprising: a group of driving central shafts, a group of guiding grid bars and a group of driving mechanisms;

the set of driving center shafts includes two driving center shafts 41.

The group of the guide grid bars comprises four guide grid bars 42 which are positioned at the left and right balance positions of the grid bar component; two guide grid bars A42 which are positioned on the left and right balance are fixedly connected with the group A movable grid bar A31, and the other two guide grid bars B42 which are positioned on the left and right balance are fixedly connected with the group B movable grid bar B31. Two eccentric devices A43 are arranged on the two guide grid bars A42 and are positioned at the front and rear balanced positions of the grid bar components; two eccentric devices B43 are arranged on the two guide grid bars B42 and are positioned at the front and rear balanced positions of the grid bar components; a driving central shaft 41 is arranged in the eccentric device 43 corresponding to the left and the right of each guide grid 42 in a penetrating way. (in the present invention, "front" means a direction opposite to the starting end wall 21, "rear" means a direction toward the starting end wall 21, "left and right" means a direction perpendicular to "front and rear")

Each guide grid 42 is provided with three fixed holes 421, which are consistent with the serial connection holes 33 on the same group of movable grids; the fixed hole 421 of each guiding grid 42 is fixedly connected in series with the series hole 33 of the same group of movable grids through the same series rod 34.

The eccentric directions of the eccentric devices A43 connected with the group A of movable grids are consistent, and the eccentric shaft distances are consistent; the eccentric directions of the eccentric devices B43 connected with the group B of movable grids are consistent, and the eccentric shaft distances are consistent; the eccentric device A43 has the opposite eccentric direction to the eccentric device B43, and the eccentric pitches are the same.

A set of driving mechanisms including a driving motor 51 and a gear transmission mechanism 52; the driving motor 51 drives a group of driving central shafts 41 through a gear transmission mechanism 52 to achieve the same rotation direction and rotation speed. The gear transmission mechanism 52 may be replaced by other transmission mechanisms, such as a sprocket transmission mechanism, a rectangular frame transmission mechanism (see the second embodiment for details), and the like.

The gear transmission mechanism 52 in this embodiment has three gears that are sequentially engaged, one of the gears is a driving gear, and the other two gears are driven gears, and the driving gear is driven by the driving motor 51. Two non-adjacent gears on two sides are gears for driving the driving central shaft, and the two gears for driving the driving central shaft are completely consistent in shape.

In a specific practice, a set of driving mechanisms, may also be: a plurality of driving motors are arranged, and each driving motor drives one driving central shaft respectively.

The driving mechanism drives the driving central shaft 41 to move synchronously, and drives the guiding bars 42 sleeved thereon to move respectively, and the guiding bars 42 drive the same set of movable bars connected with the guiding bars to do reciprocating circular motion with the same motion track. Because the eccentric direction of the eccentric device A43 is opposite to that of the eccentric device B43, and the eccentric shaft distances are consistent, the two groups AB of movable grids generate relative displacement and do staggered motion.

In this embodiment, the two a-group movable grills a31 located at the outermost side extend upward to form the side plate a231, and the two B-group movable grills B31 respectively adjacent to the two a-group movable grills a31 extend upward to form the side plate B231. A plurality of transverse filtering channels B232 are arranged on the two side plates B231 positioned on the inner side, and a plurality of vertical filtering channels A232 are arranged on the two side plates A231 positioned on the outer side. The two side plates B231 and the two side plates a231 form two side walls 23 of the tank-type filter body 2. When the two side plates B231 and the two side plates a231 move in a staggered manner, the two side walls 23 not only have a filtering function, but also have a function of scraping against each other, so that the filtering passages on the two side walls 23 are kept open.

The rear wall 24 is lower than the height of the start wall 21 and the side wall 23, and bends outwards to form a material overflow channel.

The filter device of the embodiment is suitable for materials with fluid properties, and therefore, the tank-type filter body 2 is also provided with a stirring device 5 for stirring the materials.

The filtrate tank 1 and the tank-type filter body 2 of the embodiment are both provided with a liquid level meter 9 for controlling the discharge of the feed and the filtrate.

In addition, it is worth mentioning that in large-scale equipment, the length of the movable grid 31 is relatively long, and it is also feasible that each movable grid 31 needs to be formed by fixedly splicing multiple sections. The guiding bars 42 are also suitable for this method.

The working process is as follows:

after the materials enter the groove type filter body 2, the filter slits are ensured to be smooth through the reciprocating circular motion of A, B two groups of movable grid bars, filtrate is discharged into the filtrate groove 1 from the filter slits as far as possible, and the remaining materials overflow outwards from the upper edge part of the rear wall 24.

Second embodiment:

the embodiment is suitable for materials with strong settleability, such as sand removal, slag removal and other processes.

As shown in fig. 6 to 10, a tank type filtering apparatus with a reciprocating grid member includes: a filtrate tank 1 and a tank type filter body 2 arranged in the filtrate tank 1.

The tank-type filter 2 includes: a start wall 21, a bottom 22, a side wall 23, a rear wall.

Unlike the first embodiment, the start wall 21 and the bottom 22 are integrally formed as a grill member. The length of the bottom 22 is greater than the width of the side walls 23. The rear wall is a flow-limiting baffle 25, and a gap 3 is formed between the flow-limiting baffle 25 and the bottom 22; the starting end wall 21, the side wall 23 and the flow-limiting baffle 25 enclose a groove body, and the bottom 22 extends out of the groove body.

The structures of the grid members, the driving devices and the sidewalls in this embodiment are the same as those in the first embodiment, and are not described herein again.

It should be noted that the two sets AB of movable bars in this example make a reciprocating circular motion upwards, forwards, downwards, backwards and upwards, where forwards is directed in the opposite direction to the starting end wall 21, and where backwards is directed towards the starting end wall 21, ensuring that the material is discharged from the gap 3, and then continues to be transported on the bottom 22 for further filtration to the end of the bottom 22 for discharge.

After the materials enter the tank body type filter body 2, the smooth filter slits are ensured through the reciprocating circular motion of the two groups of movable grid bars, the filtrate is discharged into the filtrate tank 1 from the filter slits as much as possible, and the materials with more solid content remained in the tank body type filter body 2 are discharged from the gap 3 and then are continuously transported to the tail end of the bottom 22 on the bottom 22 to be discharged.

The number of the flow-limiting baffles 25 is two, and two sides of each flow-limiting baffle 25 are fixedly connected with different groups of side plates 231 respectively. Therefore, the two restrictor flaps 25 have a relative displacement, with an alternating movement. The flow is limited to the maximum extent on the premise of ensuring smooth conveying of solid slag.

The bottom of each flow-limiting baffle 25 is movably connected with a movable plate 27 which inclines towards the interior of the trough-type filter body 2 through a hinge 26. When each movable plate 27 moves to the lowest point, it is close to the other group of bars when the other group of bars moves to the highest point. Because the flow-limiting baffle 25 is connected with the movable plate 27 through the hinge 26, and the maximum angle of the hinge 26 is less than 180 degrees, the movable plate 27 is inclined towards the inside of the tank body, so that the flow-limiting baffle plays a better flow-limiting role on one hand, and solid slag with a proper size is allowed to pass through on the other hand. When the solid slag touches the movable plate 27, the movable plate 27 will be lifted up by the hinge 26, so as to avoid the damage caused by hard touch between the movable grid and the flow-limiting baffle 25.

When the materials reach the outside of the tank body through the gap 3 from the inside of the tank body, the materials are discharged only by running to the tail end of the bottom 22 on the bottom 22, and further the water in the solid slag is discharged through the filter seams formed by the movable grid bars.

In this embodiment, a rolling device 6 is further disposed above the grid between the flow-limiting baffle 25 and the end of the bottom 22, so that the solid slag is further dried. The rolling device 6 is driven by a rolling driving device to do reciprocating motion which forms an angle of 90 degrees with the propelling direction of the materials, so as to roll the materials on the platform. (in particular practice, the rolling device 6 may be moved in the same direction as the material is propelled or at an angle.)

Roller compaction drive arrangement includes: a group of rolling driving central shafts 71, two rolling guide plates 72 and a group of rolling device driving mechanisms 73;

a set of rolling drive central shafts 71, including two rolling drive central shafts 71; the group of rolling driving central shafts 71 are fixed by a fixing device 8; the fixing device 8 is fixed on the wall of the filtrate tank 1.

The rolling guide plate 72 is provided with at least two eccentric devices 721, and each first eccentric device 721 is provided with a rolling driving central shaft 71 in a penetrating way.

The rolling device driving mechanism 73 includes four gear deflectors 731, a first output end of the gear deflectors 731 penetrates through the rolling driving central shaft 71, and a second output end penetrates through the driving central shaft 41.

The rolling drive central axis 71 is 90 ° to the drive central axis 41.

The driving central shaft 41 drives the rolling driving central shaft 71 to rotate through the gear steering 731, the rolling driving central shaft 71 drives the rolling guide plates 72 to move through the eccentric device 721, the moving direction of the rolling guide plates 72 and the moving direction of the platform form 90 degrees, a rolling module 721 is fixedly connected to the two rolling guide plates 72, and the rolling module 721 rolls materials on the platform under the driving of the rolling guide plates 72.

In practice, the rolling guide plates 72 may be arranged in multiple groups, and the rolling modules 721 on each rolling guide plate may be arranged in multiple intervals.

In this embodiment, the power of the two rolling drive center shafts 71 is transmitted from the two drive center shafts 41 through the four gear diverters 731. In practical practice, the two rolling driving central shafts 71 can be driven by two separate motors arranged additionally, or one separate motor can be driven by matching with one transmission mechanism.

In this embodiment, the two driving central shafts 41 and the two rolling driving central shafts 71 are rectangular frames, and the driving between the two driving central shafts is realized by the same specification of the gear steering mechanism 731, without other transmission mechanisms or other independent motors, as shown in fig. 11. It should be noted that, if the rolling device 6 is not provided, the rolling driving central shaft 71 is not used for driving the rolling device 6, and the rectangular frame may also be used as a transmission mechanism (which may be referred to as a "rectangular frame transmission mechanism") for transmitting the driving central shaft 41, so that the rotation speed and the rotation direction of the two driving central shafts 41 in the same group are consistent.

The working process is as follows:

after the materials enter the tank body type filter body 2, the filter slits are ensured to be unobstructed through the reciprocating circular motion of the two groups of movable grid bars 31, filtrate is discharged into the filtrate 1 tank from the filter slits as much as possible, the materials with high solid content remained in the tank body type filter body 2 are discharged from the gap 3, and then the materials are continuously transported on the bottom 22 and are rolled and filtered by the rolling device 6 until the materials reach the tail end of the bottom 22 to be discharged.

The third embodiment:

the above-mentioned portion of the second embodiment located outside the tank body may also be used alone as a filtering device, i.e., a filtering device with a reciprocating grid member, comprising: the rolling device comprises a filtering platform consisting of grid components and a rolling device arranged above the filtering platform. The filter platform in this embodiment is the bottom 22 in the second embodiment. The movement through the rolling device rolls the material that is located on filtering platform, and the filtrating flows out from the gap of grid component, realizes filtering capability.

The above description is only an example of the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Cell body formula filter equipment of grid component with reciprocating motion, its characterized in that: the method comprises the following steps: a filtrate tank, a tank-type filter;

2. The trough-type filter device with a reciprocating grate member of claim 1, wherein:

the initial wall, the bottom and the rear wall are integrally formed by grid components;

after the materials enter the tank body type filtering body, filtrate is discharged into the filtrate tank from the filtering slits, and the materials with more solid content remained in the tank body type filtering body overflow the upper edge part of the rear wall to be discharged.

3. The trough-type filter device with a reciprocating grate member of claim 1, wherein:

the length of the bottom is greater than the width of the side wall;

4. The trough-type filter device with a reciprocating grate member of claim 1, wherein:

the side wall comprises two groups of side plates and is formed by upwards extending two groups of grid bars on the left side and the right side;

at least one group of side plates are driven by the corresponding group of movable grid bars to do reciprocating circular motion, and two side plates positioned on the same side are mutually close to each other and generate relative displacement;

5. The trough-type filter device with a reciprocating grate member of claim 1, wherein:

the driving device includes: a group of driving central shafts, a group of guiding grid bars and a group of driving mechanisms;

the group of guide grid bars comprises at least two guide grid bars which are positioned at the left and right balance positions of the grid bar component; each guide grid bar is provided with at least two first eccentric devices which are positioned at the front and back balance positions of the grid bar component, and the driving central shaft penetrates through the first eccentric devices corresponding to the left and right of the group of guide grid bars; each guide grid is provided with at least two fixed holes, and the positions of the fixed holes are consistent with those of the series connection holes on the movable grid; the fixed holes on the guide grid bars and the serial holes of the movable grid bars are fixedly connected in series through the same serial connecting rod; the eccentric directions of the first eccentric devices on the guide grid bars connected with the same group of movable grid bars are consistent, and the eccentric shaft distances are consistent;

6. The trough-type filter device with a reciprocating grate member of claim 4, wherein: further comprising: the number of the flow limiting baffles is at least two;

7. The trough-type filter device with a reciprocating grate member of claim 6, wherein:

the bottom of each flow-limiting baffle is movably connected with a movable plate which inclines towards the interior of the tank-type filter body through a plurality of hinges;

8. The trough-type filter device with a reciprocating grill member of claim 3, wherein:

a rolling device is also arranged above the grid between the flow-limiting baffle and the tail end of the bottom;

9. The trough-type filter device with a reciprocating grate member of claim 8, wherein: the roller compaction driving device comprises: the rolling driving device comprises a group of rolling driving central shafts, at least one rolling guide plate and at least two gear redirectors;

10. A filter apparatus having a reciprocating grate member, characterized by: the method comprises the following steps: the rolling machine comprises a filtering platform consisting of grid members and a rolling device arranged above the filtering platform;

the rolling device is driven by a rolling driving device to do reciprocating circular motion to roll the materials on the filtering platform.