CN219185962U

CN219185962U - Electrohydraulic combined driving type pulling plate cake unloading mechanism for four groups of filter plates of high-efficiency filter press

Info

Publication number: CN219185962U
Application number: CN202223101175.0U
Authority: CN
Inventors: 邢超; 段慧玲; 马立海; 刘亮亮; 芦建弟; 邓江涛
Original assignee: Jingjin Equipment Co Ltd
Current assignee: Jingjin Equipment Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-06-16
Anticipated expiration: 2032-11-22

Abstract

The utility model relates to an electrohydraulic combined driving type pulling plate cake discharging mechanism of four groups of filter plates of a high-efficiency filter press, which has the main points of the innovation scheme that: (1) All filter plates are equally divided into four groups, so that the length of the whole machine and the oil cylinder thereof is minimized, the efficient filter press boxing transportation is convenient, the cost is reduced, and the efficiency is improved; (2) The novel double-oil-cylinder and three-motor combined driving type quick pulling-out and pulling-in mechanism comprises a first pulling device, a second pulling device, a third pulling device and a fourth pulling device; the first pulling plate device is driven by an oil cylinder; the other plate pulling devices have the same structure and are all motor-driven, but the installation positions of the plate pulling devices are different from those of the connected grouping filter plates, and the four sets of plate pulling devices can rapidly pull the four groups of filter plates four times and pull the filter plates with the discharged cakes together, so that the load of the plate pulling motor is reduced, the failure rate of equipment is reduced, and the cake discharging production efficiency of the plate pulling is improved; (3) The booster filter plate pressing mechanism prestretches all filter plates towards the head of the machine, accelerates the speed of pressing the filter plates, and has remarkable technical effect.

Description

Electrohydraulic combined driving type pulling plate cake unloading mechanism for four groups of filter plates of high-efficiency filter press

Technical Field

The utility model belongs to the technical field of large and medium-sized high-efficiency automatic filter presses for solid-liquid separation, and relates to a quick cake pulling-out and pressing pre-drawing mechanism for four groups of filter plates.

Background

The filter press is a pressurized filtration device with a plurality of filter chambers intermittently operated; the automatic filter press is a filter press which integrates mechanical, electric and hydraulic and can automatically complete certain operation procedures; the high-efficiency automatic filter press is an automatic filter press which can shorten the intermittent time, accelerate the operation cycle and improve the production efficiency; medium-sized filter presses, which are filter presses with an effective filtration area of 100-1000m < mu > m, and filter plate sizes of 1000mm x 1000mm to 2500mm x 2500 mm; the large-scale filter press is a filter press with an effective filtering area of 1000-2000m and a complete machine length of more than 13m (longer than 45 feet container); mainly comprises a double-beam frame (comprising double-side main beams), a filter plate pressing mechanism, a multi-filter chamber filtering mechanism, a turning plate liquid receiving mechanism, a grouping pulling plate cake discharging mechanism, a filter cloth cleaning mechanism and a PLC program control system; is suitable for solid-liquid separation of various suspension materials (i.e. mixture of liquid and solid particles).

The grouping pulling plate cake discharging mechanism, namely the grouping rapid pulling filter plate cake discharging mechanism, is mainly characterized by comprising a one-time pulling cake discharging mechanism for all filter plates, a two-group pulling cake discharging mechanism for filter plates and a three-group pulling cake discharging mechanism for filter plates; the grouping number of the filter plates directly influences the pulling plate efficiency and the whole machine length; the grouping pulling plate cake discharging mechanism is higher in efficiency than the pulling-out cake discharging mechanism of the filter plates, but the filter press machine body of the same specification is longer, for convenience of explanation, the length of a plurality of filter chambers (total thickness of a plurality of filter plates) is La, the length of a whole machine of the pulling plate is L=1.3 La, and the length of a whole machine of the pulling plate is L=2.3 La; is used for efficiently pulling open the filter plates and realizing gravity cake discharging.

The cake discharging mechanism is formed by pulling all filter plates out at one time, namely the cake discharging mechanism is formed by pulling all filter plates out at one time driven by an ultra-long hydraulic cylinder, all filter plates are connected by chains, the hydraulic cylinders of the filter plate compressing mechanism are shared, and the piston rods of the cylinders are long; the space occupied by the whole filter plate is large by pulling the piston rod of the oil cylinder once by means of shrinkage, and the length L of the whole machine is=2.3 La; the filter press is mainly used for medium-sized and small-sized filter presses, and is described in detail in a filter plate once-pull-open filter press (patent No. CN 201420352704.0).

Two groups of filter plates are pulled to open the cake discharging mechanism, namely a hydraulic cylinder and a single motor are combined to drive the cake discharging mechanism for pulling two groups of filter plates twice, the two groups of filter plates are respectively connected by chains, and the hydraulic cylinder of the filter plate compressing mechanism is shared; the first group of filter plates are pulled out for the first time by means of shrinkage of the piston rod of the oil cylinder, and the second group of filter plates are pulled out for the second time and the first group of filter plates are pulled in by means of a single motor driving transmission chain; after the pulling plate is finished, the distance between the head filter plate and the tail filter plate of the two groups of filter plates is 0.5La smaller than that of the whole filter plate pulled out at one time, and the whole machine length L=1.8La; the filter press is mainly used for medium-sized filter presses, and the details are described in a 'split-open filter press' (patent No. CN 2001249213).

The three groups of filter plates are connected by chains respectively, namely, the hydraulic oil cylinder and the high-power motor are combined to drive the two groups of filter plates to be pulled three times, and the three groups of filter plates share the hydraulic oil cylinder of the filter plate compressing mechanism; the first group of filter plates are pulled out for the first time by means of shrinkage of a piston rod of an oil cylinder, the third group of filter plates are pulled out for the second time by means of a single motor forward rotation driving transmission chain, the second group of filter plates are pulled out for the second time by means of pulling out the second group of filter plates for the first time by means of single motor reverse rotation driving transmission chain, and the third group of filter plates are pulled in the third group of filter plates; after the pulling plate is finished, the distance between the head filter plates and the tail filter plates of the three groups of filter plates is 0.67La smaller than that of the whole filter plates pulled out at one time, and the length L=1.63 La of the whole machine is larger than that of a standard container; because two groups of filter plates need to be pulled simultaneously for the second time, the motor power is higher and the energy consumption is higher; the filter plate is mainly used for large-scale filter presses, and the details are described in a filter plate three-group opening and closing filter press (patent number CN 201920683616.1).

The existing three-group filter plate pulling-out cake discharging mechanism of the large and medium-sized filter press has the following defects: (1) The total interval of the second group of filter plates pulled open for the third time is 0.33La (the length of a plurality of filter chambers), so that the length of the whole machine is longer than that of a standard container, the boxing and the transportation are inconvenient, and the transportation cost is high; (2) Because two groups of filter plates are required to be pulled simultaneously for the second time, the load is larger, the motor power is larger, the energy consumption is higher, the plate pulling speed is slower, and the failure rate is higher; the requirements of the users of the large-scale high-efficiency automatic filter press for further cost reduction and efficiency improvement cannot be met.

Disclosure of Invention

The utility model aims to overcome the defects of the three groups of filter plates of the existing large and medium-sized filter press, and solve the problems of (1) how to optimize the filter plate pulling-out cake discharging mechanism, further shorten the length of a piston rod of an oil cylinder and the length of the whole machine, so as to facilitate transportation, reduce cost and enhance efficiency; (2) How to avoid pulling two groups of filter plates at the same time, lighten the load of a motor, reduce the failure rate of equipment and improve the technical problem of production efficiency, and provide an electrohydraulic combined driving type pulling plate cake discharging mechanism of four groups of filter plates of a high-efficiency filter press; electrohydraulic combined driving-electric and hydraulic combined driving type, which is abbreviated as patent name with limited number of words.

The innovative technical scheme adopted for solving the problems in the prior art is as follows: the utility model provides an electro-hydraulic combination driving type pulling plate cake discharging mechanism of four groups of filter plates of a high-efficiency filter press (hereinafter referred to as four groups of filter plate pulling mechanisms), which has the main points that compared with the prior art, the innovative overall structure is as follows: dividing all filter plates of the multi-filter chamber filter mechanism into four groups; the three groups of filter plates of the existing large-scale filter press are pulled out to unload cake mechanisms, and the three groups of filter plates are improved into four groups of filter plate pulling out mechanisms, namely, a double-oil cylinder and three-motor combined driving type rapid pulling out and pulling in four groups of filter plates mechanism comprises four groups of pulling plate devices, namely, a first pulling plate device, a second pulling plate device, a third pulling plate device and a fourth pulling plate device; (1) The four groups of filter plates are divided into four groups equally, namely, all filter plates of the multi-filter chamber filter mechanism are divided into four groups equally, the stroke of a piston rod of an oil cylinder is shortened, after the pulling plate is finished, the distance between the head filter plate and the tail filter plate of the four groups of filter plates is 0.75La smaller than that of all filter plates which are pulled out at one time (La is the length of the multi-filter chamber), and the length L=1.55 La of the whole machine is smaller than that of a standard container (if the filter plates are divided into five groups, the efficiency is reduced); meanwhile, a four-time drawing mode is adopted, so that the load of a drawing motor is reduced, and the drawing speed and efficiency are improved; (2) The first-time plate pulling device is a dual-purpose dual-cylinder driving type device for rapidly pulling a first group of filter plates for the first time and comprises a dual-purpose cylinder, a push-pull plate, a filter plate connecting chain and a filter plate chain hanging piece; the four filter plate chain pendants are respectively arranged on the push-pull plate and the upper and lower sides of the filter plate, the filter plate connecting chains are hung on the filter plate chain pendants, the first group of filter plates and the push-pull plate are connected, and the piston rod of the dual-purpose oil cylinder is connected with the push-pull plate; after the filtration is completed, the piston rod of the double oil cylinder contracts to pull the first group of filter plates open for the first time. (3) The second to fourth plate pulling devices are devices for respectively and rapidly pulling corresponding second to fourth groups of filter plates of the second to fourth times driven by a plate pulling motor, have the same mutual structure and only have different installation positions with the connected group of filter plates; taking a second-time plate pulling device as an example, the second-time plate pulling device respectively comprises a plate pulling motor, a double-chain transmission device, a filter plate connecting chain, a filter plate chain hanging piece and a grouping filter plate handle; the four filter plate chain pendants are respectively arranged on the push-pull plate and the upper and lower sides of the filter plates, and the filter plate connecting chains are hung on the filter plate chain pendants and are connected with the filter plates of the group; the double grouping filter plate handles are arranged on two sides of the head plate of the filter plate of the group and positioned at the sliding support position of the filter plate; the pulling plate motor is respectively arranged at the lower part of the tail seat, the long shaft linkage device of the double-chain transmission device is arranged at the tail end of the double main beam, and the double three-stage pulling plate chain is respectively connected with the grouping filter plate handles of the group; the second plate pulling device can pull the second group of filter plates apart and pull the first group of filter plates together. The double-pulling plate motors of the third and fourth pulling plate devices are respectively arranged at the lower part of the thrust plate, the long shaft linkage device of the double-chain transmission device is arranged at the head end of the double main beam, and the double three-stage pulling plate chains are respectively connected with the grouped filter plate handles of the group; the third-time plate pulling device can pull the third group of filter plates open and pull the second group of filter plates together; the fourth plate pulling device can pull the fourth group of filter plates open and pull the third group of filter plates together. Therefore, the technical problems of (1) optimizing a filter plate pulling-out and cake discharging mechanism, further shortening the length of a piston rod of an oil cylinder and the length of a whole machine so as to facilitate transportation, cost reduction and synergy, and (2) avoiding pulling two groups of filter plates simultaneously, reducing the load of a motor so as to reduce the failure rate of equipment and improve the production efficiency are solved.

The specific design scheme of the utility model is as follows: (1) The four groups of filter plates are that all filter plates of the multi-filter chamber filter mechanism are equally divided into four groups, and the four groups of filter plates comprise a first group of filter plates, a second group of filter plates, a third group of filter plates and a fourth group of filter plates; after the pulling plate is finished, the distance between the head filter plate and the tail filter plate of the four groups of filter plates is 0.75La smaller than that of the whole filter plate pulled out at one time (La is the length of a multi-filter chamber), and the whole machine length L=1.55La is smaller than that of a standard container (if the filter plates are divided into five groups, the efficiency is reduced); meanwhile, a four-time drawing mode is adopted, so that the load of a drawing motor is reduced, and the drawing speed and efficiency are improved; (2) The first-time plate pulling device is a device for driving a dual-purpose oil cylinder to rapidly pull a first group of filter plates for the first time and comprises a dual-purpose oil cylinder, a push-pull plate, a filter plate connecting chain and a filter plate chain hanging piece; the dual-purpose oil cylinder arranged in the (2.1) is a dual-hydraulic oil cylinder shared by four groups of filter plate pulling mechanisms and filter plate compressing mechanisms; the stroke of the cylinder piston rod is shortened to 0.25La (La is the length of a multi-filter chamber) and is shortened by 0.08La compared with the stroke (0.33 La) of the cylinder piston rod in a three-group filter plate pulling mode; the push-pull plates are arranged in the step (2.2) and are shared by the five groups of filter plate pulling mechanisms and the filter plate pressing mechanisms; the filter plate connecting chain is the connecting chain of the filter plates of the group, and the length of the connecting chain is equal to the maximum distance of the filter plates of the group after being pulled apart; the filter plate chain hanging piece arranged in the (2.4) is a right-angle filter plate chain hanging piece with reinforcing ribs, one surface of the filter plate chain hanging piece is provided with an opening long hole matched with a filter plate connecting chain, and the other surface of the filter plate chain hanging piece is provided with double mounting holes made of stainless steel. (3) The second to fourth plate pulling devices are devices for respectively and rapidly pulling corresponding second to fourth groups of filter plates of the second to fourth times driven by a plate pulling motor, have the same mutual structure and only have different installation positions with the connected group of filter plates; taking a second-time plate pulling device as an example, the second-time plate pulling device respectively comprises a plate pulling motor, a double-chain transmission device, a filter plate connecting chain, a filter plate chain hanging piece and a grouping filter plate handle; (3.1) a pull plate motor which is a gear motor for separately driving the second to fourth pull plate devices (each of the second to fourth pull plate devices is provided with a pull plate motor) and comprises a motor and a speed reducer, wherein the speed reducer is provided with an output shaft and a chain wheel; the double-chain transmission device comprises a long shaft linkage device, a short shaft deflection device, a driven half shaft device and a multi-stage transmission chain, wherein the double-chain transmission device is arranged in the (3.2); the long shaft linkage device is arranged and is arranged on the upper part for avoiding obstacles, and comprises a bearing box seat plate, square bearing boxes, a linkage long shaft and chain wheels, wherein the two square bearing boxes are respectively arranged on the double bearing box seat plate, one chain wheel is arranged at the left end of the linkage long shaft, and two chain wheels are arranged at the right end of the linkage long shaft; the short shaft shifting device is the same as the driven half shaft device in height and comprises a square bearing box, a chain wheel and a shifting short shaft, the length of the right section of the shifting short shaft corresponds to the length of the half shaft with a seat, the shifting short shaft is arranged in the double square bearing box, and double chain wheels are respectively arranged at two ends of the shifting short shaft to form the short shaft shifting device; the driven half shaft device is provided with a chain tensioning jackscrew and comprises a chain wheel, a belt seat half shaft, a half shaft reinforcing rib, a bearing and a chain tensioning jackscrew, wherein the belt seat half shafts of the third time of the plate pulling device are different in length, the belt seat half shaft of the fourth time of the plate pulling device is shorter, the belt seat half shafts of the fourth time of the plate pulling device are longer (the plate pulling chains are prevented from interfering with each other), the double half shaft reinforcing rib is symmetrically welded at the root part of the belt seat half shaft, the bearing is arranged on the belt seat half shaft, the chain wheel is arranged on the bearing, and the chain tensioning jackscrew corresponds to the base of the belt seat half shaft to form the driven half shaft device; the multistage transmission chain comprises a primary driving chain, a secondary variable position chain and a tertiary pulling plate chain, wherein the primary driving chain is connected with a speed reducer and a long shaft linkage device, the secondary variable position chain is connected with the long shaft linkage device and a short shaft position changing device, and the tertiary pulling plate chain is connected with the short shaft position changing device, a driven half shaft device and a grouping filter plate handle. (3.3) arranging a grouping filter plate handle which is h-shaped, wherein the left inner side of the grouping filter plate handle is provided with a filter plate chute, the right outer lower part of the grouping filter plate handle is provided with a double-pulling plate chain hole, and stainless steel materials are adopted; the dual functions of grouping filter plate handle and filter plate sliding support are achieved.

The connection relation of the main parts of the utility model is as follows: for convenience of explanation, a main beam, a filter plate, a thrust plate and a tail seat which are closely related to the utility model are additionally arranged; (1) grouping and linking of filter plates: dividing all filter plates into four groups, respectively arranging four filter plate chain hanging pieces on the push-pull plate and the upper and lower sides of the filter plates, and hanging filter plate connecting chains on the filter plate chain hanging pieces to connect the filter plates of the group, wherein a first group of filter plates is connected with the push-pull plate; the double grouping filter plate handles are arranged on two sides of the head plate of the filter plate of the group and positioned at the sliding support position of the filter plate; (2) first time installation of the pulling plate device: the dual-purpose oil cylinder is arranged on the tail seat and is connected with the hydraulic station, and a piston rod of the dual-purpose oil cylinder is connected with the push-pull plate to form a first pulling plate device; after the filtration is completed, the piston rod of the oil cylinder is contracted to pull the first group of filter plates open; (3) installation of the second pulling plate device: the pulling plate motor is arranged at the lower part of the tail seat and is connected with the double long shaft linkage device and the communication PLC program control system; the long shaft linkage device is arranged on the tail end of the double main beam, the double short shaft deflection devices respectively penetrate through the double main beam to be arranged on the tail end of the double main beam, and the double driven half shaft devices are symmetrically arranged on the middle outer side of the double main beam and have the same height as the short shaft deflection devices; the third-stage pulling plate chain is connected with the short shaft shifting device, the driven half shaft device and the grouping filter plate handle of the second group of filter plates to form a second pulling plate device, so that the second group of filter plates can be pulled open and the first group of filter plates can be pulled together; (4) mounting of the third and fourth drawing plate devices: the double-pulling plate motor is respectively arranged at the lower part of the thrust plate of the machine head and is respectively connected with the double-long shaft linkage device and the communication PLC program control system; the double-long-shaft linkage device is alternately arranged on the head end of the double main beam, the double-short-shaft displacement device penetrates through the double main beam to be symmetrically arranged on the head end of the main beam, and the double-driven half-shaft device is symmetrically arranged on the middle outer side of the double main beam and is equal to the short-shaft displacement device in height; the third-stage pulling plate chain is connected with the short shaft shifting device, the driven half shaft device and the grouped filter plate handles of the third group of filter plates in a biased way to form a third pulling plate device, so that the third group of filter plates can be pulled open and the second group of filter plates can be pulled together; the third-stage pulling plate chain is connected with the left short shaft shifting device, the driven half shaft device and the grouping filter plate handle of the fourth group of filter plates to form a fourth pulling plate device, and the fourth group of filter plates can be pulled open and pulled together.

The working process of the utility model comprises the following steps: after the filtration is completed, under the control of a PLC program control system, the four groups of filter plates are gradually pulled apart in sequence and pulled together in reverse order; (1) pulling apart the first set of filter plates: the hydraulic station automatically supplies oil to the dual-purpose oil cylinder of the first-time plate pulling device in a reverse direction, and the piston rod of the oil cylinder contracts to drive the push-pull plate to pull the first group of filter plates; (2) pulling apart the second set of filter plates: after the first group of filter plates are pulled to open and unload cakes, a plate pulling motor of the second plate pulling device is automatically started to drive the double-chain transmission device to pull the second group of filter plates open; (3) pulling apart the third set of filter plates: after the second group of filter plates are pulled to open and unload cakes, a plate pulling motor of the third plate pulling device is automatically started to drive the double-chain transmission device to pull the third group of filter plates open and pull the second group of filter plates together; (4) pulling apart the fourth set of filter plates: after the third group of filter plates are pulled to open and unload cakes, a plate pulling motor of a fourth plate pulling device is automatically started to drive a double-chain transmission device to pull the fourth group of filter plates and pull the third group of filter plates together, so that gravity cake unloading is realized, and one cycle of plate pulling and cake unloading operation of the high-efficiency automatic filter press is completed; (5) the booster filter plate pressing mechanism draws all filter plates in advance: after cake unloading of the pulling plate is completed, the fourth group, the third group and the second group of filter plates are pulled up to the machine head direction by the fourth, the third and the second pulling plate devices in reverse order so as to accelerate the compression speed of the filter plates; the boosting filter plate pressing mechanism presses the filter plates to form a multi-filter-chamber filter mechanism; thus intermittently and reciprocally circularly working.

The utility model provides an electrohydraulic combined driving type pulling plate cake discharging mechanism of four groups of filter plates of a high-efficiency filter press, which has outstanding substantive characteristics and remarkable progress that: (1) By optimally dividing all filter plates into four groups, the stroke of a piston rod of an oil cylinder is effectively shortened, the length of the whole machine is reasonably shortened to be smaller than that of a standard container, the boxing and transportation of a large-sized high-efficiency filter press are facilitated, and the cost and the efficiency are reduced; (2) Four sets of pulling plate devices are arranged, four groups of filter plates are pulled open and the filter plates with cakes being unloaded are pulled together in four times, so that the load of a pulling plate motor is reduced, the failure rate of equipment is reduced, and the cake unloading production efficiency of the pulling plate is improved; (3) The boosting filter plate compressing mechanism is favorable for accelerating the speed of compressing the filter plates by the filter plate compressing mechanism, accelerating the operation circulation, shortening the intermittent time, realizing the efficient production of the efficient filter press, and leading the three groups of filter plate type automatic filter presses to be updated and have remarkable technical effect.

Drawings

In view of the difficulty of self-integration of the present utility model, the components must be separately mounted on different related mechanisms of the filter press, and figures 1-4 are added for convenience of description with the addition of the main beam, filter plate, thrust plate, tailstock patterns closely related to the present utility model.

Fig. 1 is a schematic front view of the four-pack filter plate pulling mechanism of the present utility model.

Fig. 2 is a top view of the four-pack filter plate pulling mechanism of the present utility model.

Fig. 3 is a schematic left-hand view of the assembly of the four-pack filter plate pulling mechanism of the present utility model.

Fig. 4 is a right side view of the assembly of the four-pack filter plate pulling mechanism of the present utility model.

Fig. 5 is a schematic view of a long axis linkage of a four-pack filter plate pulling mechanism of the present utility model.

FIG. 6 is a schematic view of a short axis indexing device of a four-pack filter plate pulling mechanism according to the present utility model.

Fig. 7 is a schematic view of the driven half shaft assembly of the four-pack filter plate pulling mechanism of the present utility model.

Fig. 8 is a perspective view of a filter plate chain pendant of the four-pack filter plate pulling mechanism of the present utility model.

Fig. 9 is a front view of a group filter plate handle of a four-group filter plate pulling mechanism of the present utility model.

Fig. 10 is a side view of a grouped filter plate handle of a four-pack filter plate pull mechanism of the present utility model.

FIG. 11 is a schematic diagram of a group filter plate link relationship for a four-group filter plate pull-apart mechanism of the present utility model.

FIG. 12 is a schematic illustration of a four-pack filter plate pulling mechanism of the present utility model pulling a first pack of filter plates of a corresponding high-efficiency filter press.

Fig. 13 is a schematic view showing a state that the four-group filter plate pulling mechanism pulls the second group filter plates of the corresponding high-efficiency filter press.

FIG. 14 is a schematic view showing the pulling-off of the fourth filter plate of the corresponding high-efficiency filter press by the four-filter-plate pulling-off mechanism according to the present utility model.

Reference numerals: 1-first-time plate pulling device, 2-second-time plate pulling device, 3-third-time plate pulling device, 4-fourth-time plate pulling device, 6-plate pulling motor, 7-long shaft linkage device, 8-short shaft deflection device, 9-driven half shaft device, 10-multi-stage transmission chain, 11-filter plate connecting chain, 12-filter plate chain hanging piece, 13-group filter plate handle, 14-push-pull plate, 15-bearing box seat plate, 16-square bearing box, 17-linkage long shaft, 18-sprocket, 19-deflection short shaft, 20-belt seat half shaft, 21-half shaft reinforcing rib, 22-bearing, 23-chain tensioning jackscrew, 24-plate pulling chain hole, 25-main beam, 26-filter plate, 27-thrust plate, 28-machine tailstock, 29-four filter plate pulling mechanism (the utility model), 30-dual-purpose oil cylinder, 31-first group filter plate, 32-second group filter plate, 33-third group filter plate and 34-fourth group filter plate.

The double-chain transmission device comprises a 7-long shaft linkage device, an 8-short shaft deflection device, a 9-driven half shaft device and a 10-multi-stage transmission chain (comprising a primary driving chain, a secondary deflection chain and a tertiary pulling plate chain).

Detailed Description

The technical solutions in the embodiments of the present utility model are described below with reference to the drawings in the embodiments of the electro-hydraulic combined driving type pulling plate cake discharging mechanism of the four groups of filter plates of the high-efficiency filter press, and the described embodiments are only a part of preferred embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments that are not inventive, such as four sets of filter plate pulling mechanisms with the same pulling manner and similar structure, made by those skilled in the art, are all included in the protection scope of the present utility model.

Example 1

The key points of the innovative overall implementation scheme are that an electrohydraulic combined driving type pulling plate cake discharging mechanism 29 of four groups of filter plates of a high-efficiency filter press (for short: four groups of filter plate pulling mechanisms) is as follows: dividing all filter plates of the multi-filter chamber filter mechanism into four groups; the existing three-group filter plate pulling-out and cake discharging mechanism of the high-efficiency filter press is improved into four groups of filter plate pulling-out mechanisms 29, namely a dual-purpose oil cylinder 30 and three motor combined driving type rapid pulling-out and pulling-in four groups of filter plate mechanisms, which comprise four groups of pulling-in plate devices, namely a first pulling-in plate device 1, a second pulling-in plate device 2, a third pulling-in plate device 3 and a fourth pulling-in plate device 4; meanwhile, a four-time drawing mode is adopted, so that the load of a drawing motor is reduced, and the drawing speed and efficiency are improved; (1) The four groups of filter plates 26 are divided into four groups uniformly, so that the piston rod stroke of the dual-purpose oil cylinder 30 is shortened; after the pulling of the plates is completed, the distance between the head filter plates 26 and the tail filter plates 26 of the four groups of filter plates 26 is 0.75La smaller than that of the whole filter plate 26 pulled out at one time (the length of a plurality of filter chambers), and the length L=1.55La of the whole machine is smaller than that of a standard container (if the filter plates are divided into five groups, the efficiency is reduced); (2) The first-time plate pulling device 1 is a device for driving a dual-purpose oil cylinder to rapidly pull a first group of filter plates for the first time, and comprises a dual-purpose oil cylinder 30, a push-pull plate 14, a filter plate connecting chain 11 and a filter plate chain hanging member 12; the four filter plate chain pendants 12 are respectively arranged on the upper side and the lower side of the push-pull plate 14 and the two sides of the filter plate 26, the filter plate connecting chains 11 are hung on the filter plate chain pendants 12 and are connected with the first group of filter plates 31 and the push-pull plate 14, and the piston rods of the dual-purpose oil cylinders 30 are connected with the push-pull plate 14; after the filtration is completed, the piston rod of the double cylinder contracts to pull the first set of filter plates 31 open for the first time. (3) The second to fourth pulling devices 2-5 are devices for respectively and rapidly pulling the corresponding second to fourth groups of filter plates 32-34 for the second to fourth times driven by the pulling motor 6, and have the same mutual structure and only different installation positions from the connected group of filter plates 26; taking the second pulling plate device 2 as an example, the device respectively comprises a pulling plate motor 6, a double-chain transmission device, a filter plate connecting chain 11, a filter plate chain hanging piece 12 and a grouping filter plate handle 13; the four filter plate chain hanging pieces 12 are respectively arranged on the upper side and the lower side of the push-pull plate 14 and the two sides of the filter plates 26, and the filter plate connecting chains 11 are hung on the filter plate chain hanging pieces 12 and are connected with the filter plates 26 of the group; the double grouping filter plate handles 13 are arranged on the two sides of the head plate of the filter plate of the group and positioned at the sliding support position of the filter plate; the double-pulling plate motor 6 is respectively arranged at the lower part of the tailstock 28, the long shaft linkage device 7 of the double-chain transmission device is arranged at the tail end of the double main beam 25, and the double three-level pulling plate chains are respectively connected with the grouping filter plate handles 13 of the group; the second plate pulling device 2 pulls the second group of filter plates 32 apart and pulls the first group of filter plates 31 together. The double-pulling plate motors 6 of the third and fourth

pulling plate devices

3 and 4 are respectively arranged at the lower parts of the thrust plates 27, the long shaft linkage 7 of the double-chain transmission device is arranged at the head end of the double main beam 25, and the double three-stage pulling plate chains are respectively connected with the grouping filter plate handles 13 of the group; the third plate pulling device 4 can pull the third group of filter plates 33 open and pull the second group of filter plates 32 together; the fourth plate pulling device 4 can pull the fourth group of filter plates 34 open and pull the third group of filter plates 33 together; the technical problems of (1) optimizing a filter plate pulling-out and cake discharging mechanism, further shortening the length of a piston rod of an oil cylinder and the length of a whole machine so as to facilitate transportation, cost reduction and synergy, and (2) avoiding pulling two groups of filter plates 26 simultaneously, reducing the load of a pulling plate motor 6 so as to reduce the failure rate of equipment and improve the production efficiency are solved; specific embodiments are described in detail below.

The four groups of filter plates 26 are that all filter plates 26 of the multi-filter-chamber filter mechanism are divided into four groups, each group of filter plates comprises a first group of filter plates 31, a second group of filter plates 32, a third group of filter plates 33 and a fourth group of filter plates 34, four filter plate chain hangers 12 are respectively arranged on the upper side and the lower side of the push-pull plate 14 and the two sides of the filter plates 26, filter plate connecting chains 11 are hung on the filter plate chain hangers 12 and are connected with the filter plates 26 of the group, wherein the first group of filter plates 31 are connected with the push-pull plate 14; the group filter plate handle 13 is an h-shaped group filter plate handle 13, a filter plate chute is arranged in the left inner part of the group filter plate handle 13, a double-pulling plate chain hole 24 is arranged in the lower part of the right outer part of the group filter plate handle, and stainless steel materials are adopted; the double functions of the grouping filter plate handle 13 and the filter plate sliding support are achieved; the double grouping filter plate handle 13 is arranged on the two sides of the head plate of the group of filter plates 26 and positioned at the position of the filter plate sliding support; adopting a four-time plate pulling mode, wherein after the plate pulling is finished, the distance between the head filter plate and the tail filter plate of the four groups of filter plates is 0.75La (the length of a multi-filter chamber) smaller than that of all filter plates which are pulled out at one time, and the length L=1.55 La of the whole machine is smaller than that of a standard container (if the filter plates are divided into five groups, the efficiency is reduced); meanwhile, the load of the pulling plate motor is lightened, and the pulling plate speed and efficiency are improved.

The first-time plate pulling device 1 is a device for driving a dual-purpose oil cylinder 6 to rapidly pull a first group of filter plates 31 for the first time and comprises a dual-purpose oil cylinder 30, a push-pull plate 14, a filter plate connecting chain 11 and a filter plate chain hanging member 12; (1) The dual-purpose oil cylinder 30 is a dual-hydraulic oil cylinder shared by the five groups of filter plate pulling mechanisms 29 and the filter plate compressing mechanisms; the stroke of the cylinder piston rod is shortened to 0.25La (La is the length of a multi-filter chamber) and is shortened by 0.08La compared with the stroke (0.33 La) of the cylinder piston rod in a three-group filter plate pulling mode; (2) The push-pull plates 14 are provided, and are push-pull plates 14 shared by the five groups of filter plate pulling mechanisms 29 and the filter plate pressing mechanisms; (3) The filter plate connecting chain 11 is a connecting chain of the filter plates 26 of the group, and the length of the connecting chain is equal to the maximum distance after the filter plates 26 of the group are pulled out; (4) The filter plate chain hanging piece 12 is a right-angle filter plate chain hanging piece 12 with reinforcing ribs, one surface of the filter plate chain hanging piece is provided with an opening long hole matched with the filter plate connecting chain 11, and the other surface of the filter plate chain hanging piece is provided with double mounting holes, and stainless steel materials are adopted. The dual-purpose oil cylinder 30 is arranged on the tail seat 28 and is connected with a hydraulic station, and a piston rod of the dual-purpose oil cylinder is connected with the push-pull plate 14 to form a first pulling plate device 1; after the filtration is completed, the first group of filter plates 31 can be pulled open by the shrinkage of the cylinder piston rod; for fully utilizing the contraction force of the cylinder piston rod to pull the first group of filter plates 31.

The second to fourth drawing plate devices 2-4 are devices for respectively and rapidly drawing the corresponding second to fourth groups of filter plates 32-34 for the second to fourth times driven by the drawing motor 6, and comprise a second drawing plate device 2, a third drawing plate device 3 and a fourth drawing plate device 4; the mutual structures are the same, but the installation positions are different from those of the connected grouping filter plates 26; taking the second plate pulling device 2 as an example, the second plate pulling device respectively comprises a plate pulling motor 6, a double-chain transmission device, a filter plate connecting chain 11, a filter plate chain hanging piece 12 and a grouping filter plate handle 13; for respectively rapidly pulling the second through fourth sets of filter plates 32-34 apart while simultaneously pulling together the upper set of filter plates 26.

The drawing motor 6 is a gear motor for separately driving the second to fourth drawing devices 2-4 (the second to fourth drawing devices 2-4 are respectively provided with one drawing motor 6), and comprises a motor and a speed reducer, wherein the speed reducer is provided with an output shaft and a chain wheel. The double-pulling-plate motor 6 of the second pulling-plate device 2 is respectively arranged at the lower part of the tail seat 28 and respectively connected with the double-long-shaft linkage device 7 and the communication PLC program control system; the double-pulling-plate motor 6 of the third and fourth pulling-

plate devices

3 and 4 is respectively arranged at the lower part of the head thrust plate 27 and respectively connected with the double-long-shaft linkage device 7 and the communication PLC program control system; and a double chain transmission device for driving the second to fourth pulling plate devices 2-4, respectively.

The double-chain transmission device comprises a long shaft linkage device 7, a short shaft deflection device 8, a driven half shaft device 9 and a multi-stage transmission chain 10; (1) The long shaft linkage 7 is arranged, the long shaft linkage 7 is arranged on the upper part for avoiding obstacles and comprises a bearing box seat plate 15, square bearing boxes 16, a linkage long shaft 17 and chain wheels 18, the double square bearing boxes 16 are respectively arranged on the double bearing box seat plate 15, one chain wheel 18 is arranged at the left end of the linkage long shaft 17, two chain wheels 18 are arranged at the right end of the linkage long shaft 17, and two ends of the linkage long shaft 17 are respectively arranged in the double square bearing boxes 16 to form the long shaft linkage 7; for synchronizing the double three-stage fastener stringers of the multi-stage transmission chain 10; (2) The short shaft displacement device 8 is the short shaft displacement device 8 with the same height as the driven half shaft device 9, and comprises a square bearing box 16, a chain wheel 18 and a displacement short shaft 19, wherein the length of the right section of the displacement short shaft 19 corresponds to the length of the half shaft 20 with a seat, the displacement short shaft 19 is arranged in the double square bearing box 16, and double chain wheels 18 are respectively arranged at two ends of the displacement short shaft 19 to form the short shaft displacement device 8; for displacing it to be at the same height as the driven half shaft device 9; (3) The driven half shaft device 9 is a driven half shaft device 9 with chain tensioning jackscrews 23, and comprises chain wheels 18, a half shaft 20 with seats, half shaft reinforcing ribs 21, bearings 22 and chain tensioning jackscrews 23, wherein the half shafts 20 with seats of the third time pulling plate device 3 are shorter, the half shafts 20 with seats of the fourth time pulling plate device 4 are longer (the mutual interference of pulling plate chains is avoided), the double half shaft reinforcing ribs 21 are symmetrically welded at the root parts of the half shafts 20 with seats, the bearings 22 are arranged on the half shafts 20 with seats, the chain wheels 18 are arranged on the bearings 22, and the chain tensioning jackscrews 23 correspond to the bases of the half shafts 20 with seats to form the driven half shaft device 9; the device is used for installing three-stage zipper strips in cooperation with the short shaft deflection device 8 and tensioning the zipper strips; (4) The multistage transmission chain 10 comprises a primary driving chain, a secondary variable position chain and a tertiary pulling plate chain, wherein the primary driving chain is connected with a speed reducer and a long shaft linkage device 7, the secondary variable position chain is connected with the long shaft linkage device 7 and a short shaft deflection device 8, and the tertiary pulling plate chain is connected with the short shaft deflection device 8, a driven half shaft device 9 and a grouping filter plate handle 13; for transmitting power, and pulling the packet filter plates 26 apart.

Installation of the second drawing plate device 2: the pulling plate motor 6 is arranged at the lower part of the tail seat 28 and is connected with the double long shaft linkage 7 and the communication PLC program control system; the long shaft linkage device 7 is arranged on the tail end of the double main beam 25, the double short shaft deflection devices 8 respectively penetrate through the double main beam 25 and are arranged on the tail end of the double main beam 25, and the double driven half shaft devices 9 are symmetrically arranged on the outer side of the middle of the double main beam 25 and are equal to the short shaft deflection devices 8 in height; the tertiary pulling plate chain is connected with the short shaft shifting device 8, the driven half shaft device 9 and the grouping filter plate handle 13 of the second group of filter plates 32 to form the second pulling plate device 2, and the second group of filter plates 32 can be pulled open and the first group of filter plates 31 can be pulled together.

Mounting of the third and fourth pulling plate devices 3, 4: the double-pulling plate motor 6 is respectively arranged at the lower part of the head thrust plate 27 and respectively connected with the double-long shaft linkage device 7 and the communication PLC program control system; the double long shaft linkage device 7 is arranged on the head end of the double main beam 25, the double short shaft deflection devices 8 are symmetrically arranged on the head end of the main beam 25 through the double main beam 25 respectively, and the double driven half shaft devices 9 are symmetrically arranged on the middle outer side of the double main beam 25 and have the same height as the short shaft deflection devices 8; the tertiary pulling plate chain is connected with the short shaft shifting device 8, the driven half shaft device 9 and the grouping filter plate handle 13 of the third group of filter plates 33 in a biased way to form a third pulling plate device 3, and the third group of filter plates 33 can be pulled out and pulled in the second group of filter plates 32; the tertiary pulling plate chain is connected with the left short shaft deflection device 8, the driven half shaft device 9 and the grouping filter plate handle 13 of the fourth group of filter plates 34 to form a fourth pulling plate device 4, and the fourth group of filter plates 34 can be pulled open and pulled together to form a third group of filter plates 33.

The working process of the utility model comprises the following steps: after the filtration is completed, under the control of the PLC program control system, the four groups of filter plates 26 are gradually pulled apart in sequence and pulled together in reverse order; (1) pulling apart the first set of filter plates 31: the hydraulic station automatically supplies oil to the dual-purpose oil cylinder 30 of the first-time plate pulling device 1 in a reverse direction, and the piston rod of the oil cylinder contracts to drive the push-pull plate 14 to pull the first group of filter plates 31; (2) pulling apart the second set of filter plates 32: after the first group of filter plates 31 are pulled to open and unload cakes, the plate pulling motor 6 of the second plate pulling device 2 is automatically started to drive the double-chain transmission device to pull the second group of filter plates 32 and pull the first group of filter plates 31 together; (3) pulling apart the third set of filter plates 33: after the second group of filter plates 32 are pulled to open and unload cakes, the plate pulling motor 6 of the third plate pulling device 3 is automatically started to drive the double-chain transmission device to pull the third group of filter plates 33 and pull the second group of filter plates 32 together; (4) pulling apart the fourth set of filter plates 34: after the third group of filter plates 33 are pulled to discharge cakes, the plate pulling motor 6 of the fourth plate pulling device 4 is automatically started to drive the double-chain transmission device to pull the fourth group of filter plates 34 and pull the third group of filter plates 33 together, so that gravity cake discharge is realized, and one cycle of plate pulling cake discharge operation of the high-efficiency automatic filter press is completed; (5) the booster filter plate pressing mechanism pre-draws all filter plates 26 together: after the cake discharging of the pulling plate is completed, the fourth, third and second pulling plate devices 4-2 pull the fourth, third and second groups of filter plates 34-32 to the direction of the machine head in reverse order so as to accelerate the compression speed of the filter plates 26; the booster filter plate pressing mechanism presses the filter plates 26 to form a multi-filter-chamber filter mechanism; thus intermittently and reciprocally circularly working.

The electrohydraulic combined driving type pulling plate cake discharging mechanism 29 of the four groups of filter plates of the high-efficiency filter press provided by the utility model has the outstanding substantive characteristics and remarkable progress that: (1) By optimally dividing all filter plates 26 into four groups, the stroke of a piston rod of an oil cylinder is effectively shortened, the length of the whole machine is reasonably shortened to be smaller than that of a standard container, the boxing and transportation of a large-sized high-efficiency filter press are facilitated, and the cost and the efficiency are reduced; (2) Four sets of pulling plate devices are arranged, four groups of filter plates 26 are pulled open and the filter plates 26 with cakes being unloaded are pulled together in four times, so that the load of a pulling plate motor 6 is reduced, the failure rate of equipment is reduced, and the cake unloading production efficiency of the pulling plate is improved; (3) All filter plates 26 are drawn in advance by the aid of the filter plate pressing mechanism, the speed of pressing the filter plates 26 by the aid of the filter plate pressing mechanism is increased, operation circulation is accelerated, intermittent time is shortened, efficient production of the efficient filter press is achieved, three groups of filter plate type automatic filter presses are updated, the requirement of a large-scale efficient automatic filter press user for further cost reduction and efficiency improvement is met, and the technical effect is remarkable.

Claims

1. An electrohydraulic combined driving type pulling plate cake unloading mechanism of four groups of filter plates of a high-efficiency filter press comprises a first pulling plate device, a second pulling plate device, a third pulling plate device and a fourth pulling plate device; the method is characterized in that: the four groups of filter plates are that all filter plates of the multi-filter chamber filter mechanism are equally divided into four groups, and the four groups of filter plates comprise a first group of filter plates, a second group of filter plates, a third group of filter plates and a fourth group of filter plates; the first-time plate pulling device is a device for driving a dual-purpose oil cylinder to rapidly pull a first group of filter plates for the first time and comprises a dual-purpose oil cylinder, a push-pull plate, a filter plate connecting chain and a filter plate chain hanging piece; the dual-purpose oil cylinder is a dual-hydraulic oil cylinder shared by the four filter plate pulling mechanisms and the filter plate pressing mechanism, and the stroke of a piston rod of the oil cylinder is 1/4 of the length of the multiple filter chambers; the second pulling plate device, the third pulling plate device and the fourth pulling plate device have the same structure and only have different installation positions from the connected grouping filter plates, and respectively comprise a pulling plate motor, a double-chain transmission device, a filter plate connecting chain, a filter plate chain hanging piece and a grouping filter plate handle; the double-chain transmission device comprises a long shaft linkage device, a short shaft deflection device, a driven half shaft device and a multi-stage transmission chain; the interconnection relationship is: the four filter plate chain pendants are respectively arranged on the push-pull plate and the upper and lower sides of the filter plates, the filter plate connecting chains are hung on the filter plate chain pendants and are connected with the filter plates of the group, wherein the first group of filter plates are connected with the push-pull plate; the double grouping filter plate handles are arranged on two sides of the head plate of the filter plate of the group and positioned at the sliding support position of the filter plate; the dual-purpose oil cylinder is arranged on the tail seat of the machine and is connected with a hydraulic station, a piston rod of the dual-purpose oil cylinder is connected with a push-pull plate to form a first-time plate pulling device, and a piston rod of the oil cylinder is contracted to pull a first group of filter plates; the double-pulling plate motor is respectively arranged at the lower part of the tail seat and is respectively connected with the double-long shaft linkage device and the communication PLC program control system; the long shaft linkage device is arranged on the tail end of the double main beam, the double short shaft deflection devices respectively penetrate through the double main beam to be arranged on the tail end of the double main beam, and the double driven half shaft devices are symmetrically arranged on the middle outer side of the double main beam and have the same height as the short shaft deflection devices; the third-stage pulling plate chain is connected with the short shaft shifting device, the driven half shaft device and the grouping filter plate handle of the second group of filter plates to form a second pulling plate device, so that the second group of filter plates can be pulled open and the first group of filter plates can be pulled together; the double-pulling plate motor is respectively arranged at the lower part of the thrust plate of the machine head and is respectively connected with the double-long shaft linkage device and the communication PLC program control system; the double-long-shaft linkage device is alternately arranged on the head end of the double main beam, the double-short-shaft displacement device penetrates through the double main beam to be symmetrically arranged on the head end of the main beam, and the double-driven half-shaft device is symmetrically arranged on the middle outer side of the double main beam and is equal to the short-shaft displacement device in height; the third-stage pulling plate chain is connected with the short shaft shifting device, the driven half shaft device and the grouped filter plate handles of the third group of filter plates in a biased way to form a third pulling plate device, so that the third group of filter plates can be pulled open and the second group of filter plates can be pulled together; the third-stage pulling plate chain is connected with the left short shaft shifting device, the driven half shaft device and the grouping filter plate handle of the fourth group of filter plates to form a fourth pulling plate device, and the fourth group of filter plates can be pulled open and pulled together.

2. The electro-hydraulic combination drive type pulling plate cake discharging mechanism for four groups of filter plates of high-efficiency filter press as claimed in claim 1, wherein: the push-pull plates are shared by the four groups of filter plate pulling mechanisms and the filter plate pressing mechanism; the filter plate connecting chain is a connecting chain of the filter plates of the group, and the length of the connecting chain is equal to the maximum distance of the filter plates of the group after being pulled apart; the filter plate chain hanging piece is a right-angle filter plate chain hanging piece with reinforcing ribs, one surface of the filter plate chain hanging piece is provided with an opening long hole matched with a filter plate connecting chain, and the other surface of the filter plate chain hanging piece is provided with double mounting holes made of stainless steel; the grouping filter plate handle is an h-shaped grouping filter plate handle, a filter plate chute is arranged in the left inner part of the grouping filter plate handle, and a double-pulling plate chain hole is arranged at the lower part of the right outer part of the grouping filter plate handle.

3. The electro-hydraulic combination drive type pulling plate cake discharging mechanism for four groups of filter plates of high-efficiency filter press as claimed in claim 1, wherein: the pull plate motor is a reducing motor for independently driving the second to fourth pull plate devices respectively, and the second to fourth pull plate devices are respectively provided with one pull plate motor, and the pull plate motor comprises a motor and a speed reducer, wherein the speed reducer is provided with an output shaft and a chain wheel.

4. The electro-hydraulic combination drive type pulling plate cake discharging mechanism for four groups of filter plates of high-efficiency filter press as claimed in claim 1, wherein: the long shaft linkage device is arranged on the upper part of the long shaft linkage device for avoiding obstacles and comprises a bearing box seat plate, a square bearing box, a linkage long shaft and a chain wheel.

5. The electro-hydraulic combination drive type pulling plate cake discharging mechanism for four groups of filter plates of high-efficiency filter press as claimed in claim 1, wherein: the short shaft deflection device is the same-height short shaft deflection device as the driven half shaft device and comprises a square bearing box, a chain wheel and a deflection short shaft.

6. The electro-hydraulic combination drive type pulling plate cake discharging mechanism for four groups of filter plates of high-efficiency filter press as claimed in claim 1, wherein: the driven half shaft device is provided with a chain tensioning jackscrew and comprises a chain wheel, a half shaft with a seat, a half shaft reinforcing rib, a bearing and a chain tensioning jackscrew.

7. The electro-hydraulic combination drive type pulling plate cake discharging mechanism for four groups of filter plates of high-efficiency filter press as claimed in claim 1, wherein: the multistage transmission chain comprises a primary driving chain, a secondary variable position chain and a tertiary pulling plate chain, wherein the primary driving chain is connected with a speed reducer and a long shaft linkage device, the secondary variable position chain is connected with the long shaft linkage device and a short shaft position changing device, and the tertiary pulling plate chain is connected with the short shaft position changing device, a driven half shaft device and a grouping filter plate handle.