CN115501661A - Five groups of filter plates pulling-open and pulling-up mechanism of large-scale high-efficiency filter press and operation program thereof - Google Patents

Abstract

The invention discloses a five-group filter plate pulling and gathering mechanism of a large-scale high-efficiency filter press and an operation procedure thereof, and the key points of the innovative scheme are as follows: (1) All filter plates are equally divided into five groups, so that the length of the whole filter plate and the oil cylinder thereof is minimized, the boxing transportation of the filter press is convenient, the cost is reduced, and the efficiency is improved; (2) The mechanism is a double-oil-cylinder and four-motor combined driving type mechanism, and comprises five pull plate devices which are respectively in one-to-one correspondence with five groups of filter plates; the first plate pulling device is of a hydraulic type; the other four sets of the plate pulling devices are all electric, have the same structure and are different in installation position, five sets of the plate pulling devices can rapidly pull out five sets of filter plates five times and pull together the filter plates with unloaded cakes, and the plate pulling mode five times reduces the load of a motor, reduces the failure rate and improves the production efficiency; (3) The boosting filter plate pressing mechanism draws all filter plates towards the machine head in advance, so that the speed of pressing the filter plates is increased; (4) The operation program of the mechanism is an operation program of pulling the five groups of filter plates apart in sequence and pulling the five groups of filter plates together in reverse sequence under the program control of a PLC; and the efficiency and the benefit are optimized.

Description

Five groups of filter plates pulling-open and pulling-up mechanism of large-scale high-efficiency filter press and operation program thereof

Technical Field

The invention belongs to the technical field of large efficient automatic filter presses for solid-liquid separation, and relates to a mechanism for quickly pulling and discharging cakes and pressing and pre-drawing five groups of filter plates.

Background

The filter press is a pressurized filtering device with a plurality of filtering chambers operating intermittently; an automatic filter press is a mechanical, electrical and hydraulic integrated filter press which can automatically complete certain operation procedures; the high-efficient automatic filter press is an automatic filter press which can shorten the intermittent time, accelerate the operation cycle and improve the production efficiency; a large efficient automatic filter press, which is a efficient automatic filter press with an effective filtering area of 1000-2000m and a complete machine length of more than 13m (longer than 45 feet container); the filter press 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 (namely, a mixture of liquid and solid particles).

The main types of the mechanism comprise a one-time whole filter plate pulling and cake unloading mechanism, two groups of filter plate pulling and cake unloading mechanisms and three groups of filter plate pulling and cake unloading mechanisms; the grouping number of the filter plates directly influences the plate pulling efficiency and the length of the whole machine; the grouped plate pulling and cake discharging mechanism has higher efficiency than that of a plate pulling and cake discharging mechanism by block, but the filter press body with the same specification is longer, for convenience of description, the interval between the pulled adjacent filter plates is assumed to be equal to the thickness of the filter plates, the length of a multi-filter chamber (the total thickness of a plurality of filter plates) is La, the length L =1.3La of the plate pulling complete machine by block, and the length L =2.3La of the plate pulling complete machine for one time; the device is used for efficiently pulling the filter plate open and realizing gravity cake discharge.

The all filter plates are connected by chains, the hydraulic oil cylinders of the filter plate pressing mechanism are shared, and the piston rods of the oil cylinders are very long; the space occupied by pulling all the filter plates open at one time by means of contraction of a piston rod of the oil cylinder is large, and the length L =2.3La of the whole machine; the filter plate is mainly used for small and medium-sized filter presses, and is described in filter plate one-time pulling filter press (patent number CN 201420352704.0).

Two groups of filter plate pulling and cake discharging mechanisms, namely a hydraulic oil cylinder and a single motor combined driving type two-time pulling and cake discharging mechanism for two groups of filter plates, wherein the two groups of filter plates are respectively connected by chains and share the hydraulic oil cylinder of a filter plate pressing mechanism; the first group of filter plates are pulled open for the first time by means of contraction of a piston rod of the oil cylinder, the second group of filter plates are pulled open for the second time by means of driving of a transmission chain by a single motor, and the first group of filter plates are pulled together; after the plates are pulled, the distance between the head and the tail of the two groups of filter plates is 0.5La less than that of the whole filter plates pulled in one time, and the length L =1.8La of the whole machine; mainly used for medium-sized filter presses, see the fractional open filter press (patent No. CN 2001249213).

Three groups of filter plates are pulled open and cake discharge mechanisms, namely a hydraulic oil cylinder and a high-power motor combined drive type three-time pulling open two groups of filter plates and cake discharge mechanisms, wherein the three groups of filter plates are respectively connected by chains and share the hydraulic oil cylinder of the filter plate pressing mechanism; the first group of filter plates are firstly pulled open by the contraction of a piston rod of the oil cylinder, the third group of filter plates are pulled open for the second time by driving the transmission chain by forward rotation of the single motor and the second group (middle group) of filter plates are pulled to give way, and the second group of filter plates are pulled open for the third time by driving the transmission chain by reverse rotation of the single motor and the third group of filter plates are pulled together; after the plates are pulled, the distance between the head and the tail of the three groups of filter plates is 0.67La less than that of the whole filter plates pulled in one time, and the length L =1.63La of the whole machine is greater 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 high, and the energy consumption is high; the filter plate is mainly used for large-scale filter presses, and the filter plate is divided into three groups of opening and closing filter presses (patent number CN 201920683616.1).

Three groups of filter plates of current large-scale pressure filter pull open unload cake mechanism, have following defect: (1) All the filter plates are divided into three groups, 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), the stroke of a piston rod of the oil cylinder is longer, the length of the whole machine is larger than that of a standard container, the container transportation is inconvenient, and the transportation cost is higher; (2) Because of the way of separating the group of pulling plates, two groups of filtering plates need to be pulled simultaneously for the second time, and the load is larger, the power of a motor is larger, the energy consumption is higher, the pulling speed of the plates is slower, and the failure rate is higher; the requirements of further cost reduction and efficiency improvement and double optimization of efficiency and benefit of a large-scale high-efficiency automatic filter press user can not be met.

Disclosure of Invention

The invention aims to overcome the defect of the existing large-scale filter press that three groups of filter plates are pulled open and the cake is unloaded, and solves the problems that (1) how to optimize the grouping of the filter plates and minimize the length of the whole filter press and the length of an oil cylinder thereof, thereby facilitating transportation, reducing cost and improving efficiency; (2) How to optimize the pulling mode of the filter plates, avoid pulling two groups of filter plates simultaneously, reduce the load of a motor and reduce the failure rate of equipment; (3) The technical problem of how to further improve the production efficiency is to provide a five-group filter plate pulling and pulling mechanism of a large-scale high-efficiency filter press and an operation procedure thereof; the operation procedure-refers to the operation procedure of the pulling-open and pulling-close mechanism of the five groups of filter plates of the large-scale high-efficiency filter press, which is abbreviated for short because the number of characters of the patent name is limited.

The invention solves the problems of the prior art and adopts the innovative technical scheme that: a five groups of filter plates of a large-scale high-efficiency filter press are pulled open and closed (hereinafter referred to as five groups of filter plates are pulled open), compared with the prior art, the innovative overall structure of the mechanism is characterized in that: dividing all filter plates of the multi-filter chamber filtering mechanism into five groups; the existing three groups of filter plate pulling and cake discharging mechanisms of large-scale filter presses are improved into five groups of filter plate pulling and opening mechanisms, namely, five groups of filter plate pulling and opening mechanisms which are driven by double oil cylinders and four motors in a combined manner and can rapidly pull and draw together, wherein the five groups of filter plate pulling mechanisms comprise five groups of plate pulling devices, namely a first plate pulling device, a second plate pulling device, a third plate pulling device, a fourth plate pulling device and a fifth plate pulling device, and the five groups of plate pulling devices correspond to five groups of filter plates one by one respectively; by adopting a five-time plate pulling mode, the load of a plate pulling motor is reduced, and the plate pulling speed and efficiency are improved; (1) The five groups of filter plates divide all filter plates of the multi-filter chamber filter mechanism into five groups, the stroke of a piston rod of the oil cylinder is shortened, the distance between the head filter plate and the tail filter plate of the five groups of filter plates after the plates are pulled is smaller than that of the filter plates pulled by one time by 0.8La (the length of the multi-filter chamber), the length L of the whole machine is =1.5La and is smaller than the length of a standard container (if the filter plates are divided into four groups, the machine length exceeds the standard, if the filter plates are divided into six groups, the efficiency is reduced); (2) The first plate pulling device is driven by a dual-purpose oil cylinder to rapidly pull the 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 pendant; the four filter plate chain hanging pieces are respectively arranged on the upper side and the lower side of the push-pull plate and the two sides of the filter plate, the filter plate connecting chains are hung on the filter plate chain hanging pieces and are connected with the first group of filter plates and the push-pull plate, and the piston rod of the dual-purpose oil cylinder is connected with the push-pull plate; after the filtering is finished, the piston rods of the double oil cylinders contract to pull open the first group of filter plates for the first time. (3) The second to fifth pulling plate devices are driven by a pulling plate motor to rapidly pull the corresponding second to fifth groups of filter plates respectively from second to fifth times, and have the same mutual structure except that the installation positions of the pulling plate devices are different from those of the connected grouping filter plates; taking the second and third pulling plate devices as examples, the pulling plate devices 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; four filter plate chain hanging pieces are respectively arranged on the upper and lower sides of the push-pull plate and the filter plates, and the filter plate connecting chains are hung on the filter plate chain hanging pieces and 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 group of filter plates and are positioned at the sliding support positions of the filter plates; the double pulling plate motors are respectively arranged at the lower part of the tailstock, the long shaft linkage device of the double-chain transmission device is arranged at the tail end of the double main beams, and double three-stage pulling plate chains of the double main beams are respectively connected with the grouped filtering plate handles of the group; the second plate pulling device can pull the second group of filter plates open and pull the first group of filter plates together; the third pulling plate device can pull the third group of filter plates open and pull the second group of filter plates together. Double pulling plate motors of the fourth pulling plate device and the fifth pulling plate device are respectively arranged at the lower parts of the thrust plates, a long shaft linkage device of a double-chain transmission device is arranged at the head ends of double main beams, and double three-stage pulling plate chains of the double main beams are respectively connected with the grouped filtering plate handles of the group; the fourth plate pulling device can pull the fourth group of filter plates open and pull the third group of filter plates together; the fifth pulling device can pull the fifth group of filter plates open and pull the fourth group of filter plates together. Therefore, how to optimize the grouping of the filter plates and minimize the length of the whole machine and the oil cylinder thereof is solved, thereby facilitating transportation, reducing cost and improving efficiency; (2) How to optimize the pulling mode of the filter plates, avoid pulling two groups of filter plates simultaneously, lighten the load of a motor and reduce the failure rate of equipment; (3) how to further improve the production efficiency.

The specific design scheme of the invention is as follows: (1) The first plate pulling device is driven by a dual-purpose oil cylinder to rapidly pull the 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 pendant; (1.1) the two-purpose oil cylinder is a double-hydraulic oil cylinder shared by five groups of filter plate pulling-opening mechanisms and filter plate pressing mechanisms; the stroke of the piston rod of the oil cylinder is shortened to 0.2La (La is the length of the multi-filter chamber), and is shortened by 0.13La compared with the stroke (0.33 La) of the piston rod of the oil cylinder in a pull-open mode of three groups of filter plates; the push-pull plate arranged in the step (1.2) is a push-pull plate shared by the five groups of filter plate pulling-opening mechanisms and the filter plate pressing mechanisms and is provided with a double-oil-cylinder piston rod connecting port; (1.3) the filter plate connecting chains are the connecting chains of the group of filter plates, and the length of the connecting chains is equal to the maximum distance between the filter plates of the group after being pulled apart; and (1.4) the filter plate chain pendant is a right-angle filter plate chain pendant with reinforcing ribs, one side of the pendant is provided with an opening long hole matched with the filter plate connecting chain, and the other side of the pendant is provided with double mounting holes made of stainless steel materials. (2) The second to fifth plate pulling devices are driven by plate pulling motors to respectively pull the corresponding second to fifth groups of filter plates quickly from the second to fifth groups, and have the same structure, but are different from the connected grouped filter plates in installation position; taking the second and third pulling plate devices as examples, the pulling plate devices 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 pulling plate motor arranged in the step (2.1) is a speed reducing motor for respectively and independently driving the second pulling plate device to the fifth pulling plate device (the second pulling plate device to the fifth pulling plate device are respectively provided with one pulling plate motor), and comprises a motor and a speed reducer, wherein the speed reducer is provided with an output shaft and a chain wheel; (2.2) 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 long shaft linkage device is arranged and arranged for avoiding obstacles and comprises a bearing box base plate, square bearing boxes, a linkage long shaft and chain wheels, wherein the square bearing boxes are respectively arranged on the double-bearing box base plate; the short shaft displacement device is equal to the driven half shaft device in height and comprises a square bearing box, a chain wheel and a displacement short shaft, the length of the right section of the displacement short shaft corresponds to the length of the half shaft with a seat, the displacement short shaft is arranged in the double-square bearing box, and the double-chain wheels are respectively arranged at two ends of the displacement short shaft to form the short shaft displacement device; the driven half shaft device is a driven half shaft device with a chain tensioning jackscrew and comprises a chain wheel, a half shaft with a seat, half shaft reinforcing ribs, a bearing and a chain tensioning jackscrew, wherein the half shaft with the seat of each pulling plate device is different in length, the half shafts with the seat of the second pulling plate device and the fifth pulling plate device are longer, the half shafts with the seat of the third pulling plate device and the fourth pulling plate device are shorter, the double half shaft reinforcing ribs are symmetrically welded at the root parts of the half shafts with the seat, the bearing is arranged on the half shaft with the seat, the chain wheel is arranged on the bearing, and the chain tensioning jackscrew corresponds to a base of the half shaft with the seat to form the driven half shaft device; the multistage transmission chain comprises a primary driving chain, a secondary deflection chain and a tertiary pull plate chain, wherein the primary driving chain is connected with the speed reducer and the long shaft linkage device, the secondary deflection chain is connected with the long shaft linkage device and the short shaft deflection device, and the tertiary pull plate chain is connected with the short shaft deflection device, the driven half shaft device and the grouping filter plate handle. (2.3) the grouped filter plate handle is an h-shaped grouped filter plate handle, the left inner surface of the grouped filter plate handle is provided with a filter plate chute, and the lower part of the right outer surface of the grouped filter plate handle is provided with a double-pull-plate chain hole which is made of stainless steel materials; the dual functions of grouping filter plate handles and filter plate sliding support are provided.

The connection relation of the main parts of the invention is as follows: for convenience of explanation, a main beam, a filter plate, a thrust plate and a tail seat closely related to the invention are additionally arranged; (1) grouping and linking of filter boards: dividing all the filter plates into five groups, wherein four filter plate chain hanging pieces are respectively arranged on the upper side and the lower side of the push-pull plate and the two sides of the filter plates, and the filter plate connecting chains are hung on the filter plate chain hanging pieces and 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 group of filter plates and are positioned at the positions of the filter plates in a sliding support mode; (2) installing a first pulling plate device: the dual-purpose oil cylinder is arranged on the tailstock and 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 plate pulling device; after filtration is finished, the piston rod of the oil cylinder contracts to pull open the first group of filter plates; and (3) mounting the second pulling plate device and the third pulling plate device: the double pulling plate motors are respectively arranged at the lower part of the machine tailstock and are respectively linked with the double long shaft linkage device and the communicated PLC program control system; the double-long-shaft linkage devices are alternately arranged on the tail ends of the double main beams, the four short-shaft displacement devices respectively penetrate through the double main beams and are alternately arranged on the tail ends of the double main beams (two short-shaft displacement devices are arranged at the tail ends of each main beam), and the four driven half-shaft devices are respectively alternately arranged at corresponding positions outside the middle of the double main beams (two driven half-shaft devices are arranged in the middle of each main beam) and are as high as the short-shaft displacement devices; the third-stage pulling plate chain is connected with the right short shaft deflection device, the driven half shaft device and the grouped filter plate handle of the second group of filter plates to form a second pulling plate device which can pull the second group of filter plates apart and pull the first group of filter plates together; the third-stage pulling plate chain is connected with the eccentric short shaft displacement device, the driven half shaft device and the grouped filter plate handle of the third group of filter plates to form a third-stage pulling plate device which can pull the third group of filter plates apart and pull the second group of filter plates together; (4) mounting the pulling plate device for the fourth time and the fifth time: the double-pulling-plate motor is respectively arranged at the lower part of the machine head thrust plate and is respectively connected with the double-long-shaft linkage device and the communicated PLC program control system; the double-long-shaft linkage devices are alternately arranged on the head ends of the double main beams, the four short-shaft displacement devices respectively penetrate through the double main beams and are alternately arranged on the head ends of the double main beams (two short-shaft displacement devices are arranged at the head end of each main beam), and the four driven half-shaft devices are respectively alternately arranged at corresponding positions in the middle of the double main beams and on the outer side (two driven half-shaft devices are arranged in the middle of each main beam) and are equal in height to the short-shaft displacement devices; the third-stage pulling plate chain is connected with the short shaft displacement device, the driven half shaft device and the grouped filter plate handle of the fourth group of filter plates to form a fourth pulling plate device which can pull the fourth group of filter plates open and pull the third group of filter plates together; the third-stage pulling plate chain is connected with the left short shaft deflection device, the driven half shaft device and a grouping filter plate handle of the fifth group of filter plates to form a fifth pulling plate device which can pull the fifth group of filter plates apart and pull the fourth group of filter plates together.

The invention also provides an operation program, namely the operation program of the five groups of filter plate pulling and gathering mechanisms of the large-scale high-efficiency filter press, which comprises the following steps: after the filtration is finished, rapidly pulling each group of filter plates gradually under the control of a PLC program control system; (1) pulling apart the first group of filter plates: the hydraulic station automatically supplies oil to the dual-purpose oil cylinder of the first plate pulling device in a reverse direction, and the piston rod of the oil cylinder contracts to drive the push-pull plate to pull open the first group of filter plates; (2) pulling the second group of filter plates: after the first group of filter plates are pulled open and unloaded, a plate pulling motor of the second plate pulling device is automatically started to drive the double-chain transmission device to pull open the second group of filter plates and pull together the first group of filter plates; (3) pulling the third group of filter plates: after the second group of filter plates are pulled open and the cakes are unloaded, a plate pulling motor of the plate pulling device for the third time is automatically started to drive the double-chain transmission device to pull open the third group of filter plates and pull close the second group of filter plates; (4) pulling the fourth group of filter plates: after the third group of filter plates are pulled open and cake is removed, a plate pulling motor of the fourth plate pulling device is automatically started to drive the double-chain transmission device to pull open the fourth group of filter plates and pull close the third group of filter plates; (5) opening the fifth group of filter plates: after the fourth group of filter plates are pulled open and unloaded, a plate pulling motor of the fifth plate pulling device is automatically started to drive the double-chain transmission device to pull open the fifth group of filter plates and pull up the fourth group of filter plates, so that gravity cake unloading is realized, and one cycle plate pulling and cake unloading operation of the efficient automatic filter press is completed; (6) the power-assisted filter plate pressing mechanism draws all filter plates in advance: after the plate pulling and cake discharging are finished, the plate pulling devices pull the fifth group, the fourth group, the third group and the second group of filter plates to the machine head direction in a reverse order so as to accelerate the filter plate pressing speed; the boosting filter plate pressing mechanism presses the filter plates to form a multi-filter-chamber filter mechanism, so that the operation circulation is accelerated, and the intermittent time is shortened; the operation is performed in an intermittent reciprocating cycle.

The invention provides a five groups of filter plate pulling and pulling mechanisms of a large-scale high-efficiency filter press and an operation procedure thereof, which have prominent substantive characteristics and remarkable progress that: (1) grouping optimization of filter plates: all the filter plates are optimized and equally divided into five groups through overall efficiency and benefit, the stroke of a piston rod of the oil cylinder is effectively shortened, the length of the whole machine is reasonably shortened to be smaller than the length of a standard container, the large-scale efficient filter press is convenient to carry in a box, the cost is reduced, and the efficiency is improved; (2) loosening by a plate pulling mode: by arranging five sets of pulling plate devices, five groups of filtering plates are sequentially and quickly pulled open five times and the filtering plates with unloaded cakes are pulled together, so that the load of a pulling plate motor 6 is reduced, the failure rate of equipment is reduced, and the production efficiency of pulling plate cake unloading is improved; (3) high efficiency of the drawn filter plate: by exerting the potential energy of the plate pulling mechanism, the power-assisted filter plate pressing mechanism draws all filter plates in advance, so that the speed of pressing the filter plates by the filter plate pressing mechanism is increased, the operation circulation is increased, the intermittent time is shortened, and the high-efficiency production of a large-scale high-efficiency filter press is realized; and (4) programming the operation process: by optimizing the operation procedures of pulling open the five groups of filter plates in sequence and pulling together the five groups of filter plates in reverse sequence and adopting the control of a PLC program control system, the full automation level of the large-scale automatic filter press is improved, the three groups of filter plate type large-scale automatic filter presses are upgraded and updated, and the technical effect is remarkable.

Drawings

In view of the difficulty of integrating the present invention, each component must be separately installed on different related mechanisms of the filter press, and for convenience of description, figures 1-4 are added with main beams, filter plates, thrust plates, and tail seat figures closely related to the present invention.

Fig. 1 is a schematic front view of an assembly of five groups of filter plate opening mechanisms according to the present invention.

Fig. 2 is a schematic top view of the assembly of five groups of filter plate opening mechanisms according to the present invention.

Fig. 3 is a left side view of the assembly of the five groups of filter plate pull-open mechanisms of the present invention.

Fig. 4 is a right side view of the assembly of the five groups of filter plate opening mechanisms of the present invention.

Fig. 5 is a schematic view of a long axis linkage of five groups of filter plate opening mechanisms according to the present invention.

Fig. 6 is a schematic view of a short shaft displacement device of the five groups of filter plate pulling-open mechanisms of the invention.

Fig. 7 is a schematic view of a driven half shaft device of five groups of filter plate pulling-open mechanisms of the invention.

Fig. 8 is a perspective view of a filter plate chain hanger of the five-group filter plate opening mechanism of the present invention.

Fig. 9 is a schematic view of a group filter plate handle of the five groups of filter plate pull-open mechanisms of the present invention.

Fig. 10 is a schematic view of the linkage relationship between the group filter plates of the five groups of filter plate pull-open mechanisms according to the present invention.

Fig. 11 is a schematic diagram showing the state that five groups of filter plate opening mechanisms of the invention open the corresponding first group of filter plates of the large-scale high-efficiency filter press.

Fig. 12 is a schematic diagram showing the state that five groups of filter plate opening mechanisms of the invention open the corresponding second group of filter plates of the large-scale high-efficiency filter press.

Fig. 13 is a schematic view of the state of the five groups of filter plate opening mechanisms of the invention opening the third group of filter plates of the corresponding large-scale high-efficiency filter press.

Fig. 14 is a schematic diagram of the fifth group of filter plates of the large-scale high-efficiency filter press according to the invention, which are pulled open by the five groups of filter plate pulling-open mechanisms.

The state diagram of the fifth group of filter plates of the large-scale high-efficiency filter press for pulling the fourth group of filter plates by the five groups of filter plate pulling-open mechanisms is omitted (because the attached drawings are more, and the marks of 34-the fourth group of filter plates are shown in figure 1).

Reference numerals: 1-a first plate pulling device, 2-a second plate pulling device, 3-a third plate pulling device, 4-a fourth plate pulling device, 5-a fifth plate pulling device, 6-a plate pulling motor, 7-a long shaft linkage, 8-a short shaft deflection device, 9-a driven half shaft device, 10-a multi-stage transmission chain, 11-a filter plate connecting chain, 12-a filter plate chain hanger, 13-a grouping filter plate handle, 14-a push-pull plate, 15-a bearing box seat plate, 16-a square bearing box, 17-a linkage long shaft, 18-a chain wheel, 19-a deflection short shaft, 20-a belt seat half shaft, 21-a half shaft reinforcing rib, 22-a bearing, 23-a chain tensioning jackscrew, 24-a plate chain hole, 25-a main beam, 26-a filter plate, 27-a thrust plate, 28-a tail seat, 29-a five-group filter plate pulling-open mechanism (the invention), 30-a dual-purpose oil cylinder, 31-a first group filter plate, 32-a second group filter plate, 33-a fourth group filter plate, 34-a third group filter plate, 35-a fifth 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-multistage transmission chain (comprising a first-stage driving chain, a second-stage deflection chain and a third-stage pulling plate chain).

Detailed Description

The technical solution of the embodiment of the present invention is described below with reference to the attached drawings in an embodiment of five groups of filter plate opening and closing mechanisms of a large-scale high-efficiency filter press and an operation procedure thereof, and the described embodiment is only a preferred part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments that are not inventive by those skilled in the art, such as five groups of filter plates with the same pulling-open manner and similar structure, and the operation procedures thereof, belong to the protection scope of the present invention.

Example 1

A five-group filter plate pulling and gathering mechanism 29 (for short, five-group filter plate pulling and opening mechanism) of a large-scale high-efficiency filter press has the main points of innovative overall implementation scheme: all the filter plates 26 of the multi-filter chamber filtering mechanism are equally divided into five groups; the three groups of filter plate pulling and cake discharging mechanisms of the existing large-scale filter press are improved into five groups of filter plate pulling and opening mechanisms 29, namely, a dual-purpose oil cylinder 30 and a four-motor combined driving type quick pulling and closing five groups of filter plate mechanisms, which comprise five sets of pulling plate devices, namely a first pulling plate device 1, a second pulling plate device 2, a third pulling plate device 3, a fourth pulling plate device 4 and a fifth pulling plate device 5, and are respectively in one-to-one correspondence with the five groups of filter plates; the plate pulling mode is adopted for five times, so that the load of a plate pulling motor is reduced, and the plate pulling speed and efficiency are improved; (1) The five groups of filter plates 26 are that all the filter plates 26 of the multi-filter chamber filtering mechanism are divided into five groups, the stroke of a piston rod of the oil cylinder is shortened, after the plates are pulled, the distance between the head filter plate 26 and the tail filter plate 26 of the five groups of filter plates 26 is 0.8La (the length of the multi-filter chamber) less than that of the whole filter plates 26 pulled once, and the length L =1.5La and is less than the length of a standard container (if the filter plates 26 are divided into four groups, the machine length exceeds the standard, if the filter plates 26 are divided into six groups, the efficiency is reduced); (2) The first plate pulling device 1 is driven by 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 piece 12; the four filter plate chain pendants 12 are respectively arranged on the upper side and the lower side of the two sides of the push-pull plate 14 and the filter plate 26, the filter plate connecting chain 11 is hung on the filter plate chain pendants 12 and connected with the first group of filter plates 31 and the push-pull plate 14, and the piston rod of the dual-purpose oil cylinder 30 is connected with the push-pull plate 14; after the filtration is finished, the piston rods of the double oil cylinders contract to pull open the first group of filter plates 31 for the first time. (3) The second to fifth plate pulling devices 2 to 5 are driven by the plate pulling motor 6 to respectively pull the corresponding second to fifth groups of filter plates 32 to 35 quickly from the second to fifth groups, and have the same structure with each other, but are different in installation position from the connected grouping filter plates 26; taking the second and third pulling plate devices 2 and 3 as examples, the pulling plate devices respectively comprise 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 two sides of the push-pull plate 14 and the filter plates 26, and the filter plate connecting chains 11 are hung on the filter plate chain hanging pieces 12 and connected with the filter plates 26; the double-grouping filter plate handles 13 are arranged on two sides of the head plate of the group of filter plates and are positioned at the positions where the filter plates are slidably supported; the double pulling plate motors 6 are 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-stage pulling plate chains of the double main beam are respectively connected with the grouped filter plate handles 13 of the group; the second pulling plate device 2 can pull the second group of filter plates 32 open and pull the first group of filter plates 31 together; the third pulling device 3 can pull the third group of filter plates 33 apart and pull the second group of filter plates 32 together. The double-pulling-plate motors 6 of the fourth pulling-plate device 4 and the fifth pulling-plate device 5 are respectively arranged at the lower part of the thrust plate 27, the long-shaft linkage device 7 of the double-chain transmission device is arranged at the head end of the double main beam 25, and the double-third pulling-plate chains of the double-chain transmission device are respectively connected with the grouped filter plate handles 13 of the group; the fourth pulling plate device 4 can pull the fourth group of filter plates 34 open and pull the third group of filter plates 33 together; the fifth pulling plate device 5 can pull the fifth group of filter plates 35 open and pull the fourth group of filter plates 34 together; specific embodiments are described in detail below.

The five groups of filter plates 26 are that all the filter plates 26 of the multi-filter-chamber filter mechanism are divided into five groups, including a first group of filter plates 31, a second group of filter plates 32, a third group of filter plates 33, a fourth group of filter plates 34 and a fifth group of filter plates 35; the four filter plate chain hangers 12 are respectively arranged on the upper side and the lower side of the two sides of the push-pull plate 14 and the filter plates 26, the filter plate connecting chains 11 are hung on the filter plate chain hangers 12 and connected with the group of filter plates 26, and the first group of filter plates 31 are connected with the push-pull plate 14; the grouping filter plate handle 13 is an h-shaped grouping filter plate handle 13, the left inner surface of the grouping filter plate handle is provided with a filter plate chute, and the lower part of the right outer surface of the grouping filter plate handle is provided with a double-pull-plate chain hole 24 which is made of stainless steel material; the dual functions of grouping filter plate handles 13 and filter plate sliding support are realized; the double-grouping filter plate handles 13 are arranged on two sides of the head plate of the group of filter plates 26 and are positioned at the positions where the filter plates are slidably supported.

The first plate pulling device 1 is driven by 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 piece 12; (1) The dual-purpose oil cylinder 30 is a double-hydraulic oil cylinder shared by the five groups of filter plate pulling-opening mechanisms 29 and the filter plate pressing mechanisms; the stroke of a piston rod of the dual-purpose oil cylinder 30 is shortened to 0.2La (La is the length of the multi-filter chamber), and is shortened by 0.13La compared with the stroke (0.33 La) of the piston rod of the oil cylinder in a pull-open mode of three groups of filter plates; (2) The push-pull plate 14 is a push-pull plate 14 shared by the five groups of filter plate pulling-open mechanisms 29 and the filter plate pressing mechanisms and is provided with a double-cylinder piston rod connecting port; (3) The filter plate connecting chain 11 is a connecting chain of the group of filter plates 26, and the length of the connecting chain is equal to the maximum distance between the filter plates 26 after being pulled open; (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 right-angle filter plate chain hanging piece 12 is provided with an opening long hole matched with the filter plate connecting chain 11, and the other surface of the right-angle filter plate chain hanging piece is provided with double mounting holes made of stainless steel materials. The dual-purpose oil cylinder 30 is arranged on the machine tailstock 28 and connected with the hydraulic station, and the piston rod of the dual-purpose oil cylinder is connected with the push-pull plate 14 to form a first-time plate pulling device 1; after the filtration is finished, the piston rod of the oil cylinder contracts to pull open the first group of filter plates 31; the first group of filter plates 31 are pulled open by fully utilizing the contraction force of the piston rods of the oil cylinders.

The second to fifth plate pulling devices 2 to 5 are driven by the plate pulling motor 6 to rapidly pull open the corresponding second to fifth groups of filter plates 32 to 35 respectively from the second to fifth times, and include the second plate pulling device 2, the third plate pulling device 3, the fourth plate pulling device 4 and the fifth plate pulling device 5; the mutual structures are the same, but the installation positions are different from the connected grouping filter plates 26; taking the second and third pulling plate devices 2 and 3 as examples, the pulling plate devices respectively comprise 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; for rapidly pulling apart the second through fifth groups of filter plates 32-35, respectively, while simultaneously pulling together the upper group of filter plates 26.

The plate pulling motor 6 is a YVF2-90L-4 type speed reducing motor (the second to fifth plate pulling devices 2-5 are respectively provided with one plate pulling motor 6) which respectively and independently drives the second to fifth plate pulling devices 2-5, and comprises a motor and a speed reducer, and the speed reducer is provided with an output shaft and a chain wheel. The double-pulling plate motors 6 of the second pulling plate device 2 and the third pulling plate device 3 are respectively arranged at the lower part of the tailstock 28 and are respectively linked with the double-long-shaft linkage device 7 and a communicated PLC program control system; the double pulling plate motors 6 of the fifth pulling plate device 4 and the fifth pulling plate device 5 are respectively arranged at the lower part of the machine head thrust plate 27 and are respectively linked with the double long shaft linkage device 7 and the communicated PLC program control system; a double chain transmission device for driving the second to fifth pulling plate devices 2-5 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 device 7 is arranged, the long shaft linkage device 7 is arranged on the upper portion of the double-square bearing box seat plate 15 for avoiding obstacles and comprises a bearing box seat plate 15, a square bearing box 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, the 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 box 16 to form the long shaft linkage device 7; the double three-stage pulling plate chain is used for synchronously linking the double three-stage pulling plate chains 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, the length of the right section of the displacement short shaft 19 corresponds to the length of a 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; used for shifting to enable the driven half shaft device to be equal in height with the driven half shaft device 9; (3) The driven half shaft device 9 is a driven half shaft device 9 with a chain tensioning jackscrew 23 and comprises a chain wheel 18, a half shaft 20 with a seat, half shaft reinforcing ribs 21, bearings 22 and a chain tensioning jackscrew 23, wherein the half shaft 20 with the seat of each pulling plate device has different lengths, the half shafts 20 with the seat of the second pulling plate device 2 and the fifth pulling plate device 5 are longer, the half shafts 20 with the seat of the third pulling plate device 3 and the fourth pulling plate device 4 are shorter, the double half shaft reinforcing ribs 21 are symmetrically welded at the root part of the half shaft 20 with the seat, the bearings 22 are arranged on the half shafts 20 with the seat, the chain wheel 18 is arranged on the bearings 22, and the chain tensioning jackscrew 23 corresponds to the base of the half shaft 20 with the seat to form the driven half shaft device 9; the short shaft deflection device 8 is used for installing a three-stage pulling plate chain in a matched manner and tensioning the pulling plate chain; (4) The multistage transmission chain 10 comprises a primary driving chain, a secondary deflection chain and a tertiary pulling plate chain, wherein the primary driving chain is connected with the speed reducer and the long shaft linkage device 7, the secondary deflection chain is connected with the long shaft linkage device 7 and the short shaft deflection device 8, and the tertiary pulling plate chain is connected with the short shaft deflection device 8, the driven half shaft device 9 and the grouping filter plate handle 13; for transmitting power, pulling apart the packet filter plates 26.

And (3) mounting the second pulling plate device and the third pulling plate device: the double pulling plate motors 6 are respectively arranged at the lower part of the machine tailstock 28 and are respectively linked with the double-long-shaft linkage device 7 and the communicated PLC program control system; the double-long-shaft linkage devices 7 are alternately arranged on the tail ends of the double main beams 25, the four short-shaft displacement devices 8 respectively penetrate through the double main beams 25 and are arranged on the tail ends of the double main beams 25 in a staggered manner (two short-shaft displacement devices 8 are arranged at the tail end of each main beam 25), and the four driven half-shaft devices 9 are respectively alternately arranged at corresponding positions in the middle of the outer side of the double main beams 25 (two driven half-shaft devices 9 are arranged in the middle of each main beam 25) and are equal to the short-shaft displacement devices 8 in height; the third-stage pulling plate chain is connected with the right short-shaft displacement device 8, the driven half-shaft device 9 and the grouped filter plate handles 13 of the second group of filter plates 32 to form a second-stage 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 close; the third-stage pulling plate chain is connected with the eccentric short shaft deflection device 8, the driven half shaft device 9 and the grouping filter plate pull 13 of the third group of filter plates 33 to form a third-stage pulling plate device 3, and the third group of filter plates 33 can be pulled open and the second group of filter plates 32 can be pulled close.

Third and fifth installation of the pulling plate devices 4 and 5: the double-pulling-plate motor 6 is respectively arranged at the lower part of the nose thrust plate 27 and is respectively connected with the double-long-shaft linkage device 7 and the communicated PLC program control system; the double-long-shaft linkage device 7 is alternately arranged on the head ends of the double main beams 25, the four short-shaft displacement devices 8 respectively penetrate through the double main beams 25 and are arranged on the head ends of the double main beams 25 in a staggered manner (two short-shaft displacement devices 8 are arranged at the head end of each main beam 25), and the four driven half-shaft devices 9 are respectively alternately arranged at corresponding positions in the middle and outside of the double main beams 25 (two driven half-shaft devices 9 are arranged in the middle of each main beam 25) and are equal to the short-shaft displacement devices 9 in height; the third-stage pulling plate chain is connected with the eccentric short shaft displacement device 8, the driven half shaft device 9 and the grouped filter plate handles 13 of the fourth group of filter plates 34 to form a fourth pulling plate device 4 which can pull the fourth group of filter plates 34 apart and pull the third group of filter plates 33 together; the third-stage plate pulling chain is connected with the left short-shaft deflection device 8, the driven half-shaft device 9 and the grouped filter plate handles 13 of the fifth group of filter plates 35 to form a fifth plate pulling device 5, and the fifth group of filter plates 35 can be pulled open and the fourth group of filter plates 34 can be pulled close.

The invention provides a five-group filter plate pulling and gathering mechanism 29 of a large-scale high-efficiency filter press, which solves the problems that (1) the filter plates are optimized in groups, the length of the whole machine and an oil cylinder thereof is minimized, and the filter press is convenient to transport, reduces cost and improves efficiency; (2) How to optimize the pulling mode of the filter plates, avoid pulling two groups of filter plates simultaneously, lighten the load of a motor and reduce the failure rate of equipment; (3) how to further improve the production efficiency. The prominent substantive features and remarkable progress are as follows: (1) All the filter plates 26 are optimally and uniformly divided into five groups, so that the stroke of a piston rod of the oil cylinder is effectively shortened, the length of the whole machine is reasonably shortened to be smaller than that of a standard container, and the large-scale high-efficiency filter press is convenient to carry in a box manner; (2) By arranging five sets of pulling plate devices, five groups of filtering plates are rapidly pulled open and the cake-unloaded filtering plates are pulled together in five times, so that the load of a pulling plate motor 6 is reduced, the failure rate of equipment is reduced, and the production efficiency of pulling plate cake unloading is improved; (3) By exerting the potential energy of the plate pulling mechanism, the power-assisted filter plate pressing mechanism draws all the filter plates 26 in advance, so that the speed of pressing the filter plates 26 by the filter plate pressing mechanism is increased, the operation circulation is increased, the intermittent time is shortened, the high-efficiency production of a large high-efficiency filter press is realized, the large automatic filter press with three groups of filter plates is upgraded and updated, and the technical effect is remarkable.

Example 2

The invention relates to an operation program, namely an operation program of a five-group filter plate pulling-open and pulling-close mechanism of a large-scale high-efficiency filter press, which comprises the following steps: after the filtration is finished, under the control of the PLC program control system, the five sets of pulling plate devices respectively correspond to the five sets of filtering plates 26 one by one, and each set of filtering plates 26 are rapidly pulled out step by step, wherein the specific operation procedure is as follows;

(1) Opening the first set of filter plates 31: the hydraulic station automatically supplies oil to the dual-purpose oil cylinder 30 of the first 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 open 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 open and cakes are removed, the plate pulling motor 6 of the second plate pulling device 2 is automatically started to drive the double-chain transmission device to pull open the second group of filter plates 32 and pull close the first group of filter plates 31;

(3) Opening the third set of filter plates 33: after the second group of filter plates 32 are pulled open and the cakes are unloaded, the plate pulling motor 6 of the third plate pulling device 3 is automatically started to drive the double-chain transmission device to pull open the third group of filter plates 33 and pull close the second group of filter plates 32;

(4) Pulling the fourth set of filter plates 34 open: after the third group of filter plates 33 are pulled open and unloaded, the plate pulling motor 6 of the fourth plate pulling device 4 is automatically started to drive the double-chain transmission device to pull open the fourth group of filter plates 34 and pull close the third group of filter plates 33;

(5) Opening the fifth set of filter plates 35: after the fourth group of filter plates 34 are pulled open and cake discharge is carried out, the plate pulling motor 6 of the fifth plate pulling device 5 is automatically started to drive the double-chain transmission device to pull open the fifth group of filter plates 35 and pull up the fourth group of filter plates 34, so that gravity cake discharge is realized, and one circulation plate pulling and cake discharge operation of the high-efficiency automatic filter press is completed;

(6) The booster filter hold-down mechanism pre-draws all the filter plates 26: after plate pulling and cake discharging are completed, the plate pulling devices 5-2 for the fifth time, the fourth time, the third time and the second time pull the fifth group, the fourth group, the third group and the second group of filter plates 35-32 in the machine head direction in a reverse order so as to accelerate the pressing speed of the filter plates 26; the boosting filter plate pressing mechanism presses the filter plates 26 to form a multi-filter chamber filter mechanism, so that the operation circulation is accelerated, and the intermittent time is shortened; the operation is performed in an intermittent reciprocating cycle.

The operation procedure of the five groups of filter plate pulling and gathering mechanisms 29 of the large-scale high-efficiency filter press provided by the invention has the prominent substantive characteristics and remarkable progress that: (1) By arranging five sets of pulling plate devices which respectively correspond to five groups of filter plates one by one, the five groups of filter plates are quickly pulled open and the filter plates with cakes removed are pulled together in five times, so that the phenomenon that two groups of filter plates 26 are pulled simultaneously is avoided, the load of a pulling plate motor 6 is reduced, the failure rate of equipment is reduced, and the production efficiency of pulling plates and removing cakes is improved; (2) By exerting the potential energy of the plate pulling mechanism, the boosting filter plate pressing mechanism pre-pulls all the filter plates 26, so that the speed of pressing the filter plates 26 by the filter plate pressing mechanism is increased, the operation circulation is increased, the intermittent time is shortened, and the high-efficiency production of a large-scale high-efficiency filter press is realized; unexpected and unexpected technical effects are achieved; (3) Five groups of filter plates are sequentially pulled open and closed in reverse order under the control of a PLC program control system, so that the full automation level of the large-scale automatic filter press is improved, three groups of filter plates of the large-scale automatic filter press are upgraded, the requirements of users of the large-scale high-efficiency automatic filter press on further cost reduction, efficiency improvement and efficiency dual optimization are met, and the technical effect is remarkable.

Claims (7)

1. A pull-open and pull-close mechanism for five groups of filter plates of a large-scale high-efficiency filter press comprises five sets of pulling plate devices, namely a first pulling plate device, a second pulling plate device, a third pulling plate device, a fourth pulling plate device and a fifth pulling plate device, wherein the five sets of pulling plate devices are respectively in one-to-one correspondence with the five groups of filter plates; the method is characterized in that: the five groups of filter plates are formed by dividing all filter plates of the multi-filter-chamber filtering mechanism into five groups, wherein the five groups of filter plates comprise a first group of filter plates, a second group of filter plates, a third group of filter plates, a fourth group of filter plates and a fifth group of filter plates; the first plate pulling device is driven by a dual-purpose oil cylinder to rapidly pull the 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 pendant; the second pulling plate device, the third pulling plate device, the fourth pulling plate device and the fifth pulling plate device have the same structure, are different from the connected grouping filter plates in installation positions, and respectively comprise a pulling plate motor, a double-chain transmission device, a filter plate connecting chain, a filter plate chain pendant 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 multistage transmission chain comprises a primary driving chain, a secondary deflection chain and a tertiary pull plate chain, wherein the primary driving chain is a short chain for connecting the speed reducer and the long shaft linkage device, the secondary deflection chain is a short chain for connecting the long shaft linkage device and the short shaft deflection device, and the tertiary pull plate chain is a long chain for connecting the short shaft deflection device, the driven half shaft device and the grouped filter plate handles; the interconnection relationship is: first, the linking relation of the filter plates: the four filter plate chain hanging pieces are respectively arranged on the upper side and the lower side of the push-pull plate and the two sides of the filter plate, the filter plate connecting chains are hung on the filter plate chain hanging pieces and connected with the filter plates, and 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 group of filter plates and are positioned at the sliding support positions of the filter plates; the connection relation of the second and first pulling plate devices is as follows: the dual-purpose oil cylinder is arranged on the machine tailstock and 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 plate pulling device; the connection relation of the third pulling plate device, the second pulling plate device and the third pulling plate device is as follows: the double pulling plate motors are respectively arranged at the lower part of the machine tailstock and are respectively linked with the double long shaft linkage device and the communicated PLC program control system; the double-long-shaft linkage devices are alternately arranged on the tail ends of the double main beams, the four short-shaft displacement devices respectively penetrate through the double main beams and are alternately arranged on the tail ends of the double main beams, the tail end of each main beam is provided with two short-shaft displacement devices, the four driven half-shaft devices are respectively alternately arranged at corresponding positions outside the middle of the double main beams, the middle of each main beam is provided with two driven half-shaft devices, and the four driven half-shaft devices are equal to the short-shaft displacement devices in height; the third-stage pulling plate chain is connected with the right short shaft deflection device, the driven half shaft device and the grouped filter plate handle of the second group of filter plates to form a second pulling plate device which can pull the second group of filter plates apart and pull the first group of filter plates together; the third-stage pulling plate chain is connected with the eccentric short shaft displacement device, the driven half shaft device and the grouped filter plate handle of the third group of filter plates to form a third-stage pulling plate device which can pull the third group of filter plates apart and pull the second group of filter plates together; the connection relationship of the fourth pulling plate device, the fourth pulling plate device and the fifth pulling plate device is as follows: the double-pulling-plate motor is respectively arranged at the lower part of the machine head thrust plate and is respectively connected with the double-long-shaft linkage device and the communicated PLC program control system; the double-long-shaft linkage devices are alternately arranged on the head ends of the double main beams, the four short-shaft displacement devices respectively penetrate through the double main beams and are alternately arranged on the head ends of the double main beams, the head end of each main beam is provided with two short-shaft displacement devices, the four driven half-shaft devices are respectively alternately arranged at corresponding positions outside the middle of the double main beams, and the middle of each main beam is provided with two driven half-shaft devices which are as high as the short-shaft displacement devices; the third pull plate chain is connected with the eccentric short shaft displacement device, the driven half shaft device and the grouped filter plate handle of the fourth group of filter plates to form a fourth pull plate device which can pull the fourth group of filter plates apart and pull the third group of filter plates together; the third-stage pulling plate chain is connected with the left short shaft deflection device, the driven half shaft device and a grouping filter plate handle of the fifth group of filter plates to form a fifth pulling plate device which can pull the fifth group of filter plates apart and pull the fourth group of filter plates together.

2. The five groups of filter plates of the large-scale high-efficiency filter press according to claim 1 are drawn open and closed, and are characterized in that: the push-pull plate is shared by the five groups of filter plate pulling-open mechanisms and the filter plate pressing mechanisms; the filter plate connecting chain is a connecting chain of the group of filter plates, and the length of the connecting chain is equal to the maximum distance between 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 side of the right-angle filter plate chain hanging piece is provided with an opening long hole matched with the filter plate connecting chain, and the other side of the right-angle filter plate chain hanging piece is provided with double mounting holes made of stainless steel materials; the grouping filter plate handle is an h-shaped grouping filter plate handle, a filter plate sliding groove is formed in the left inner side of the grouping filter plate handle, a double-pull-plate chain hole is formed in the lower portion of the right outer side of the grouping filter plate handle, and the grouping filter plate handle and the filter plate sliding support are made of stainless steel materials and have double functions.

3. The five groups of filter plates of the large-scale high-efficiency filter press of claim 1 are opened and closed together, which is characterized in that: the pulling plate motor is a speed reducing motor for respectively and independently driving the second pulling plate device to the fifth pulling plate device, and the second pulling plate device to the fifth pulling plate device are respectively provided with a pulling plate motor and comprise a motor and a speed reducer, wherein the speed reducer is provided with an output shaft and a chain wheel.

4. The five groups of filter plates of the large-scale high-efficiency filter press according to claim 1 are drawn open and closed, and are characterized in that: the long shaft linkage device comprises a bearing box seat plate, a square bearing box, a linkage long shaft and chain wheels, wherein the square bearing box, the linkage long shaft and the chain wheels are arranged on the double bearing box seat plate respectively, one chain wheel is arranged at the left end of the linkage long shaft, the two chain wheels are arranged at the right end of the linkage long shaft, and the two ends of the linkage long shaft are arranged in the double square bearing box respectively to form the long shaft linkage device.

5. The five groups of filter plates of the large-scale high-efficiency filter press according to claim 1 are drawn open and closed, and are characterized in that: the short shaft displacement device is equal in height to the driven half shaft device and comprises a square bearing box, a chain wheel and a displacement short shaft, the length of the right section of the displacement short shaft corresponds to the length of the half shaft with a seat, the displacement short shaft is arranged in the double-square bearing box, and the double-chain wheels are respectively arranged at two ends of the displacement short shaft to form the short shaft displacement device.

6. The five groups of filter plates of the large-scale high-efficiency filter press according to claim 1 are drawn open and closed, and are characterized in that: driven half axle device, for taking the driven half axle device of chain tensioning jackscrew, including the sprocket, take seat semi-axis, semi-axis strengthening rib, bearing, chain tensioning jackscrew, the seat semi-axis length of taking of the pull plate device is different for each time, wherein the seat semi-axis of taking of second and fifth pull plate device is longer, the seat semi-axis of taking of third and fourth pull plate device is shorter, the root at the seat semi-axis is taken in the welding of pair semi-axis strengthening rib symmetry, the bearing is installed on taking the seat semi-axis, the sprocket is installed on the bearing, the chain tensioning jackscrew corresponds the base of taking the seat semi-axis, form driven half axle device.

7. An operating program, characterized in that: the operation procedure is that the five groups of filter plates of the large-scale high-efficiency filter press are pulled open and drawn together: after the filtration is finished, under the control of a PLC program control system, five sets of pulling plate devices respectively correspond to five groups of filter plates one by one, the five groups of filter plates are gradually and rapidly pulled out in sequence, and finally the five groups of filter plates are pulled together in reverse sequence, wherein the specific operation procedure is as follows;

firstly, pulling a first group of filter plates open: the hydraulic station automatically supplies oil to the dual-purpose oil cylinder of the first 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 open;

step two, pulling open the second group of filter plates: after the first group of filter plates are pulled open and the cakes are unloaded, the plate pulling motor of the second plate pulling device is automatically started

The double-chain transmission device is driven to pull the second group of filter plates open and pull the first group of filter plates close;

thirdly, opening a third group of filter plates: after the second group of filter plates are pulled open and the cakes are unloaded, the plate pulling motor of the plate pulling device is automatically started for the third time

The double-chain transmission device is driven to open the third group of filter plates and draw the second group of filter plates;

fourthly, pulling open a fourth group of filter plates: after the third group of filter plates are pulled open and cakes are unloaded, the plate pulling motor of the fourth plate pulling device is automatically started

The double-chain transmission device is driven to pull the fourth group of filter plates open and pull the third group of filter plates together;

step five, opening a fifth group of filter plates: after the fourth group of filter plates are pulled open and cake is unloaded, the plate pulling motor of the fifth plate pulling device is automatically started

The double-chain transmission device is driven to pull the fifth group of filter plates open and pull the fourth group of filter plates together, so that gravity cake discharge is realized, and one circulation plate pulling and cake discharge operation of the high-efficiency automatic filter press is completed;

sixthly, pre-drawing all filter plates by the aid of a power-assisted filter plate pressing mechanism: after the plate pulling and cake discharging are finished, the fifth time, the fourth time and the third time

The second plate pulling device and the second plate pulling device pull the fifth group, the fourth group, the third group and the second group of filter plates in the machine head direction in a reverse order so as to accelerate the filter plate pressing speed; the boosting filter plate pressing mechanism presses the filter plates to form a multi-filter chamber filtering mechanism, so that the operation circulation can be accelerated, the intermittent time can be shortened, and the efficient production of the efficient filter press can be realized; the operation is performed in an intermittent reciprocating cycle.

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