CN216778024U

CN216778024U - Variable-speed reversing type pulling plate cake unloading mechanism and corresponding efficient automatic filter press

Info

Publication number: CN216778024U
Application number: CN202220314065.3U
Authority: CN
Inventors: 岳崇军; 郑堃; 胡春蕾; 吴振文; 梁颖
Original assignee: Jingjin Equipment Co Ltd
Current assignee: Jingjin Equipment Co Ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-06-21
Anticipated expiration: 2032-02-17

Abstract

The utility model relates to a variable-speed reversing type pulling plate cake unloading mechanism and a corresponding efficient automatic filter press, and the key points of the innovative scheme are as follows: on the basis of the existing uniform speed reversing type pulling plate cake discharging mechanism, a variable frequency speed regulator is additionally arranged to form the variable speed reversing type pulling plate cake discharging mechanism, which comprises a pulling plate driving motor, a double pulling plate trolley and a guide rail thereof, a chain transmission device, a head-tail travel switch and the variable frequency speed regulator; when the pulling trolley is reversed, the variable-frequency speed regulator can change the working power frequency of the motor to adjust and reduce the rotating speed of the alternating-current motor, reduce the impact force on the pulling manipulator and the head and tail travel switches when the trolley is reversed, and realize soft start slow parking. The efficient automatic filter press adopts the plate pulling mechanism, and solves the technical problems that the efficient plate pulling trolley has higher designed running speed, can not be decelerated and reversed, and has larger impact on a plate pulling manipulator and a head-tail travel switch when the trolley is reversed, so that related elements are easily damaged; the performance of the mechanism is improved, the failure rate of the mechanism is reduced, and the high-efficiency operation of the filter press is guaranteed; can increase the efficiency.

Description

Variable-speed reversing type pulling plate cake unloading mechanism and corresponding efficient automatic filter press

Technical Field

The utility model belongs to the technical field of high-efficiency automatic filter presses (patent classification number B01D 25/12), and relates to a variable-speed reversing type (namely, a speed-reducing direction-changing operation type) plate pulling and cake discharging mechanism.

Background

The filter press is a pressurized filtering device with multiple filtering chambers operated intermittently; the automatic filter press is a filter press which is integrated mechanically, electrically and hydraulically and intelligently controlled by a PLC (programmable logic controller); 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; the filter mainly comprises a double-beam frame, a filter plate pressing mechanism, a multi-filter chamber filtering mechanism, a turning plate liquid receiving mechanism, a 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 plate pulling and cake discharging mechanism is one electric constant speed mechanism for pulling filter plates and cake discharging block by block and consists of mainly plate pulling driving motor, double plate pulling bogie and its guide rail, chain driving unit, head and tail stroke switch, etc. The plate pulling trolley comprises an electric trolley and a plate pulling manipulator (comprising a plate pulling claw component, a plate grabbing claw component and a torsion spring); the chain transmission device comprises a linkage long shaft (a driving shaft and a three-chain wheel), a single chain wheel short shaft (a driven shaft and a chain wheel), a driving short single chain and a transmission long double chain. The design and running speed of the drawplate trolley of the high-efficiency automatic filter press is higher, and the drawplate efficiency is higher.

The working process of the plate pulling and cake discharging mechanism is as follows: (1) the trolley moves forwards in an empty way: under the control of a PLC control system, when a driving motor drives the double-pulling-plate trolley to synchronously move forwards at a constant speed in an idle mode through a transmission chain, a torsion spring of the pulling-plate manipulator enables the double claws to tilt; (2) a trolley reversing pulling plate: when the pulling plate claw of the pulling plate manipulator touches the filter plate, the pulling plate claw is pressed down by the filter plate, the plate grabbing claw grabs the filter plate, and the torsion spring immediately resets (warps) the pulling plate claw; at the moment, the plate grabbing claw is blocked by the filter plate, the trolley driving motor is reversely rotated by the resistance force, and the plate pulling is started; (3) the trolley is reversed and moves forwards: when the trolley pulls the filter plate backwards to a proper position, the plate-grabbing claws are pressed down, and the filter plate is released; at the moment, the pulling plate claw is blocked by the filter plate, the trolley driving motor is prevented from rotating forwards under the force resistance, the forward uniform-speed idling is recovered, and the filter plates are automatically pulled one by one to unload cakes; (4) reversing the head and the tail of the trolley: when the drawplate trolley runs to the head and the tail of the filter press, the trolley runs in a reversing way by virtue of a head and tail travel switch.

The existing uniform speed reversing type pulling plate cake unloading mechanism has the following defects: the speed reduction reversing setting is lacked, the pulling plate driving motor rotates at a constant speed, the pulling plate trolley runs and reverses at a constant speed, and the pulling plate trolley of the high-efficiency automatic filter press is high in design running speed, so that the pulling plate manipulator and the head-tail travel switches are impacted greatly during reversing of the trolley, the damage to the pulling plate manipulator and the head-tail travel switches is easily caused, the failure rate of an impacted part is high, and the normal service life of the impacted part is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the existing uniform speed reversing type plate pulling and cake discharging mechanism, solve the technical problems that the design running speed of a high-efficiency plate pulling trolley is higher, the speed reduction and the reversing cannot be realized, the impact on a plate pulling manipulator and a head-tail travel switch is larger when the trolley reverses, and the damage to the plate pulling manipulator and the head-tail travel switch is easily caused, and provide the variable speed reversing type plate pulling and cake discharging mechanism and a corresponding high-efficiency automatic filter press; the utility model relates to a corresponding high-efficiency automatic filter press, in particular to a high-efficiency automatic filter press with a variable-speed reversing type pulling plate cake unloading mechanism, which is called for short because the number of characters of a patent name is limited.

The utility model solves the problems of the prior art and adopts the innovative technical scheme that: a variable speed reversing type pulling plate cake unloading mechanism (hereinafter referred to as variable speed pulling plate mechanism), namely a rapid operation type block-by-block pulling plate cake unloading mechanism with speed reduction and direction change, the main point of the overall technical scheme is that compared with the prior art, the innovative overall structure has prominent substantive characteristics: on the basis of the existing uniform speed reversing type pulling plate cake discharging mechanism, a variable frequency speed regulator is additionally arranged to form the variable speed reversing type pulling plate cake discharging mechanism, which comprises a pulling plate driving motor, a double pulling plate trolley and a guide rail thereof, a chain transmission device, a head-tail travel switch and the variable frequency speed regulator; the variable-frequency speed regulator is connected between a power supply controlled by the PLC program control system and a pull plate driving motor stator, when the pull plate trolley is reversed, the rotating speed of an alternating current motor can be reduced by changing the working power supply frequency of the motor, the impact force of the trolley on a pull plate manipulator and a head-tail travel switch during reversing is reduced, and the corresponding elements are effectively prevented from being damaged by soft start and slow parking; the rapid idle running of the plate pulling trolley can be realized through the combined control of the PLC program control system and the variable-frequency speed regulator; the device has the functions of speed reduction and reversing, and efficient plate pulling and cake discharging; therefore, the technical problems that the design running speed of the efficient plate pulling trolley is high, the speed can not be reduced and the direction can not be changed, the plate pulling manipulator and the head-tail travel switch are impacted greatly when the trolley is changed over, and the plate pulling manipulator and the head-tail travel switch are damaged easily are solved.

The specific design scheme of the utility model is as follows: (1) the pulling plate driving motor is a speed reduction alternating current motor, is an integrated body of a speed reducer and a motor, and is provided with a speed reducer output shaft and a driving chain wheel; (2) the plate pulling trolley comprises an electric trolley and a plate pulling mechanical arm; the plate pulling mechanical arm comprises a plate pulling claw component, a plate grabbing claw component and a torsion spring; (3) the chain transmission device comprises a linkage long shaft (a driving shaft and a three-chain wheel), a single chain wheel short shaft (a driven shaft and a chain wheel), a driving short single chain and a transmission long double chain; (4) the head and tail travel switches comprise a machine head travel switch (namely a machine head return travel switch) and a machine tail travel switch (namely a machine tail pause switch); (5) the variable-frequency speed regulator is a 22f-d6pon103 type power supply variable-frequency speed regulator, and can regulate and reduce the reversing rotating speed of the alternating-current motor by changing the working power supply frequency of the motor.

The connection relation of the characteristic elements of the utility model is as follows: for convenience of explanation, a PLC program control cabinet and a PLC program control system closely related to the variable-frequency speed regulator of the variable-speed pulling plate mechanism are additionally arranged; the variable frequency speed regulator is arranged on the lower layer of the PLC program control cabinet, the variable frequency speed regulator is connected between a motor working power supply controlled by the PLC program control system and a pull plate driving motor stator by using an electric wire, and when the pull plate trolley is reversed, the reduction reversing or pause of the pull plate trolley is realized by changing the frequency of the motor working power supply to reduce the rotating speed of the alternating current motor.

The utility model also provides a high-efficiency automatic filter press, which uses the variable-speed reversing type pull plate cake unloading mechanism provided by the utility model; the high-efficiency automatic filter press mainly comprises a double-beam frame, a filter plate pressing mechanism, a multi-filter chamber filtering mechanism, a turning plate liquid receiving mechanism, a variable-speed pulling plate cake discharging mechanism, a filter cloth cleaning mechanism and a PLC program control system; the automatic filter press has the functions of automatically pressing a filter plate, automatically turning a plate to receive liquid, efficiently pulling the plate to unload a cake and automatically cleaning filter cloth.

The utility model provides a variable-speed reversing type pulling plate cake unloading mechanism and a corresponding high-efficiency automatic filter press, which have the advantages of high-efficiency pulling plate cake unloading, speed-reducing reversing operation, soft start and slow stop, durability and reliable performance, and have the following beneficial effects: by additionally arranging the variable-frequency speed regulator, the variable-speed reversing type plate pulling and cake discharging mechanism is formed, when the plate pulling trolley reverses, the working power frequency of the motor can be changed to adjust and reduce the rotating speed of the alternating-current motor, the impact force on a plate pulling manipulator and a head-tail travel switch when the trolley reverses is reduced, and the damage of corresponding elements is effectively avoided; the performance of the mechanism is improved, the failure rate of the mechanism is reduced, the service life of the mechanism is prolonged, and the high-efficiency operation of the filter press is guaranteed; can increase the efficiency.

Drawings

FIG. 1 is a schematic top view of a variable speed reversing type plate pulling and cake discharging mechanism of the present invention.

FIG. 2 is a schematic top view of the assembly of the variable speed reversing type plate pulling and cake unloading mechanism and the corresponding high efficiency automatic filter press of the present invention.

FIG. 3 is a schematic front view of the assembly of the variable speed reversing type plate pulling and cake unloading mechanism and the corresponding high efficiency automatic filter press of the present invention.

FIG. 4 is a schematic wiring diagram of a pulling plate driving motor and a variable frequency governor of the variable speed reversing pulling plate cake discharging mechanism of the present invention.

Reference numerals: the system comprises a 1-pulling plate driving motor, a 2-driving short single chain (primary driving chain), a 3-driving long double chain (secondary driving chain), a 4-linkage long shaft (driving shaft and three chain wheels), a 5-short shaft seat, a 6-single chain wheel short shaft (driven shaft and chain wheels), an 8-pulling plate trolley (comprising an electric trolley and a pulling plate manipulator), a 9-long shaft seat, a 10-variable frequency speed regulator, an 11-PLC program control cabinet, a 12-PLC program control system, a 13-machine head travel switch (machine head return travel switch), a 14-machine tail travel switch (machine tail pause switch), a 15-filter plate, a 16-machine tail seat and a 17-frame double main beam (short for main beams).

Detailed Description

The technical solution of the embodiment of the present invention will be described below with reference to the accompanying drawings in the embodiment of the present invention, which is a variable speed reversing type plate pulling and cake discharging mechanism and the corresponding high efficiency automatic filter press, and the described embodiment is only a part of the preferred embodiment of the present invention, but not all embodiments. Based on the embodiment of the present invention, all other embodiments without creativity made by those skilled in the art, such as the variable speed plate-pulling cake-unloading mechanism with the same frequency conversion speed regulation mode and similar structure, belong to the protection scope of the present invention.

Example 1

A variable speed reversing type pulling plate cake discharging mechanism (short for variable speed pulling plate mechanism), namely a rapid operation type block-by-block pulling plate cake discharging mechanism with speed reduction and direction change, the main points of the innovative general implementation scheme are as follows: on the basis of the existing uniform speed reversing type pull plate cake discharging mechanism, a variable frequency speed regulator 10 is additionally arranged to form the variable speed reversing type pull plate cake discharging mechanism, which comprises a pull plate driving motor 1, a double pull plate trolley 8 and a guide rail thereof, a chain transmission device, a head-tail travel switch and the variable frequency speed regulator 10; the variable-frequency speed regulator 8 is connected between a power supply controlled by the PLC program control system 12 and a stator of the pulling plate driving motor 1, when the pulling plate trolley 8 is reversed, the rotating speed of an alternating current motor can be reduced by changing the working power supply frequency of the motor, the impact force on a pulling plate manipulator and head and

tail travel switches

13 and 14 when the trolley is reversed is reduced, and the corresponding elements are effectively prevented from being damaged by soft start slow parking; the rapid idle running of the plate pulling trolley 8 can be realized through the combined control of the PLC program control system 12 and the variable-frequency speed regulator 10; the device has the functions of speed reduction and reversing, and efficient plate pulling and cake discharging; specific embodiments are described in detail below.

The pulling plate driving motor 1 is a speed reduction alternating current motor, is an integrated body of a speed reducer and a motor, and is provided with a speed reducer output shaft and a driving chain wheel; the pulling plate driving motor 1 is arranged outside the tailstock 16 and is used for driving a chain transmission device to drive the double-pulling-plate trolley 8 to synchronously run back and forth.

The plate pulling trolley 8 comprises an electric trolley and a plate pulling manipulator; the plate pulling mechanical arm comprises a plate pulling claw component, a plate grabbing claw component and a torsion spring; the double-pulling-plate trolley 8 is arranged on a trolley guide rail on the outer side of the main beam 17, corresponds to a filter plate handle and is used for automatically pulling the filter plates 15 one by one and discharging cakes.

The chain transmission device comprises a driving short single chain 2, a transmission long double chain 3, a linkage long shaft 4 (a driving shaft and a three-chain wheel), a short shaft seat 5, a single chain wheel short shaft 6 (a driven shaft and a chain wheel) and a long shaft seat 9; the linkage long shaft 4 (driving shaft and three chain wheels) is arranged at the tail of the machine close to the driving motor 1 and stretches across two sides of the machine frame, the driving short single chain 2 is connected with a speed reducer chain wheel and a long shaft middle chain wheel of the linkage long shaft 4, the single chain wheel short shaft 6 (driven shaft and chain wheel) is arranged at the machine head, and the transmission long double chain 3 is arranged on the driving shaft and chain wheel 4 and the driven shaft and chain wheel 6 at two sides of the machine frame and is connected with the double-pulling-plate trolley 8; used for driving the double-pulling-plate trolley 8 to synchronously run.

The head and tail travel switches comprise a machine head travel switch 13 (namely a machine head return switch) and a machine tail travel switch 14 (namely a machine tail pause switch); the head and tail travel switches are respectively arranged at corresponding positions of the machine head and the machine tail and are respectively used for enabling the pull plate trolley 8 to return at the machine head and pause at the machine tail.

The variable-frequency speed regulator 10 is a 22f-d6pon103 type power supply variable-frequency speed regulator 10; the variable-frequency speed regulator 10 is arranged on the lower layer of the PLC program control cabinet 11, the variable-frequency speed regulator 10 is connected between a motor working power supply controlled by the PLC program control system 12 and a stator of the pulling plate driving motor 1 through a wire, and the variable-frequency speed regulator is used for adjusting and reducing the rotating speed of an alternating current motor by changing the frequency of the motor working power supply when the pulling plate trolley 8 is reversed, so that the pulling plate trolley 8 is decelerated and reversed or suspended, namely, soft start slow stop is realized.

The variable-speed reversing type pulling plate cake discharging mechanism provided by the utility model has the advantages of high efficiency pulling plate cake discharging, speed reduction reversing operation, soft start and slow stop, durability and reliable performance; the technical problems that the high-efficiency plate pulling trolley 8 is high in design running speed, cannot be decelerated and reversed, and easily causes damage to the plate pulling manipulator and the head and tail travel switches due to large impact on the plate pulling manipulator and the head and

tail travel switches

13 and 14 when the trolley is reversed are solved; the performance of the mechanism is improved, the failure rate of the mechanism is reduced, the service life of the mechanism is prolonged, and the high-efficiency operation of the filter press is guaranteed; can increase the efficiency.

Example 2

The utility model provides a high-efficiency automatic filter press, which uses a variable-speed reversing type pulling plate cake discharging mechanism (a variable-speed pulling plate cake discharging mechanism for short); the high-efficiency automatic filter press mainly comprises a double-beam frame, a filter plate pressing mechanism, a multi-filter chamber filtering mechanism, a turning plate liquid receiving mechanism, a variable-speed pulling plate cake discharging mechanism, a filter cloth cleaning mechanism and a PLC program control system 12; the automatic filter press has the functions of automatically pressing the filter plate 15, automatically turning the plate to receive liquid, efficiently pulling the plate to unload cakes and automatically cleaning filter cloth. The utility model is common to the prior art, and is manufactured according to the group mark of 'chamber and plate and frame filter press' T/CGMA0701 and 'chamber and plate and frame filter press filter plate' T/CGMA0702-2021 in the China general mechanical industry standard.

Assembling the high-efficiency automatic filter press: (1) the filter plate pressing mechanism comprises: the thrust plate of the filter plate hold-down mechanism is fixedly installed or welded on the double-leg of the machine head, the hold-down plate (push plate) is movably installed on the guide rail of the double-main beam 17, the hydraulic cylinder is installed on the machine tail base 16, the piston rod is connected with the hold-down plate, the hydraulic pump station is installed on the machine tail ground; (2) the turning plate liquid receiving mechanism comprises: the turning plate liquid receiving mechanism is integrally arranged on four machine legs below the filter press and is positioned below the filter plate 15; (3) plate pulling and cake unloading mechanism: the double guide rails of the plate pulling and cake discharging mechanism are arranged at two sides of a double main beam 17, the driving motor 1 is arranged at the tail of the machine, the plate pulling trolley 8 is arranged on the double guide rails at two sides of the main beam 17, and the two-stage transmission chain is connected with the driving motor 1 and the plate pulling trolley 8; the variable frequency speed regulator 10 is arranged on the lower layer of the PLC program control cabinet 11; (4) many filter chambers filter mechanism: the double-filter-plate supporting handle supports the filter plates 15 on filter plate slideways of double main beams 17 of the frame, the filter plates 15 are pressed tightly by a hydraulic oil cylinder, and a plurality of concave parts (hollow parts) of adjacent filter plates 15 which cover filter cloth form a multi-filter chamber; the multi-filter chamber is provided with an anti-corrosion filter plate which is sealed end to end and each fluid inlet and outlet external pipeline, so that a multi-filter chamber filter mechanism is formed; (5) and (3) cleaning a filter cloth mechanism: the double guide rails of the cloth washing mechanism are arranged on two sides of the double main beam 17, and the cloth washing trolley is arranged on the double guide rails on two sides of the main beam 17; (6) the PLC program control system 12: the PLC program control cabinet 11 is arranged on the ground of the tail and is communicated with and controls the hydraulic oil cylinder, the pull plate trolley 8, the cloth washing trolley and the liquid receiving turning plate to work through signal wires.

The low-pressure static filtering process of the filter press comprises the following steps: the material is pressurized by a feed pump and is input into the filtering chamber through a feed hole for low-pressure static filtering, the filter cloth intercepts particles in the material to form a filter cake in the filtering chamber, filtrate passes through the filter cloth and flows out of a liquid outlet hole of the filtering chamber, and the filter plate 15 is pulled open to realize gravity cake unloading. The single complete operation cycle working process of the high-efficiency automatic filter press comprises the following steps: under the control of the PLC program control system 12, the filter plates 15 are pressed, fed, filtered (including plate connection liquid receiving), washed, purified, materials are blown back, the materials are dried and purified, plates are pulled, cakes are unloaded (including plate opening and cake dropping), filter cloth is cleaned, and the operation is automatically finished by one key; the intermittent reciprocating circulation work realizes the batch high-efficiency solid-liquid separation.

The utility model provides an efficient automatic filter press, which has the beneficial effects that: by additionally arranging the variable-frequency speed regulator 10, the variable-speed reversing type plate pulling and cake discharging mechanism is formed, when the plate pulling trolley 8 is reversed, the working power frequency of the motor can be changed to reduce the rotating speed of the alternating-current motor, the impact force on a plate pulling manipulator and head and

tail travel switches

13 and 14 when the trolley is reversed is reduced, and the damage of corresponding elements is effectively avoided; the performance of the mechanism is improved, the failure rate of the mechanism is reduced, the service life of the mechanism is prolonged, and the high-efficiency operation of the filter press is guaranteed; can increase the efficiency.

Claims

1. A variable speed reversing type pulling plate cake unloading mechanism, namely a rapid operation type block-by-block pulling filter plate cake unloading mechanism with speed reduction and direction conversion, comprises a pulling plate driving motor, a double pulling plate trolley and a guide rail thereof, a chain transmission device, a head-tail travel switch and a variable frequency speed regulator; the method is characterized in that: the pulling plate driving motor is a speed reduction alternating current motor, is an integrated body of a speed reducer and a motor, and is provided with a speed reducer output shaft and a driving chain wheel; the plate pulling trolley comprises an electric trolley and a plate pulling mechanical arm; the plate pulling mechanical arm comprises a plate pulling claw component, a plate grabbing claw component and a torsion spring; the chain transmission device comprises a linkage long shaft, a single-chain wheel short shaft, a driving short single chain and a transmission long double chain; the head and tail travel switches comprise a machine head travel switch and a machine tail travel switch; the variable-frequency speed regulator is a 22f-d6pon103 type power supply variable-frequency speed regulator; the variable frequency speed regulator is arranged on the lower layer of the PLC program control cabinet, the variable frequency speed regulator is connected between a motor working power supply controlled by the PLC program control system and a pull plate driving motor stator by using an electric wire, and when the pull plate trolley is reversed, the rotating speed of the alternating current motor can be adjusted and reduced by changing the frequency of the motor working power supply, so that the pull plate trolley is decelerated and reversed or slowly paused.

2. A high-efficiency automatic filter press comprises a double-beam frame, a filter plate pressing mechanism, a multi-filter chamber filtering mechanism, a turning plate liquid receiving mechanism, a variable-speed pulling plate cake discharging mechanism, a filter cloth cleaning mechanism and a PLC program control system; the method is characterized in that: the variable-speed pulling plate cake discharging mechanism is the variable-speed reversing type pulling plate cake discharging mechanism of claim 1; the high-efficiency automatic filter press has the functions of automatically pressing filter plates, automatically turning plates to receive liquid, efficiently pulling plates to unload cakes and automatically cleaning filter cloth.