WO2020186684A1

WO2020186684A1 - Pressure filtration system

Info

Publication number: WO2020186684A1
Application number: PCT/CN2019/099497
Authority: WO
Inventors: 毛卫青
Original assignee: 菲立化学工程(遂昌)有限公司
Priority date: 2019-03-15
Filing date: 2019-08-06
Publication date: 2020-09-24
Also published as: CN109731393B; CN109731393A

Abstract

A pressure filtration system, comprising a plate type pressure filter and a six-in-one pressure filter. An outlet of the plate type pressure filter is connected to a feed inlet of the six-in-one pressure filter by means of a flange. The plate type pressure filter is used for performing primary filtration on a material to be performed pressure filtration. The six-in-one pressure filter is used for performing secondary filtration on the solid. A material pressing cylinder base of the six-in-one pressure filter is fixed on an upper portion of an upper cap for driving a pressuring plate component (17) to directly squeeze the material. A material pressing cylinder rod is of a hollow structure. A stirring shaft (15-3) passes through the cylinder rod, and is connected to a speed reducer motor (15-1). The speed reducer motor (15-1) is provided with an explosion-proof motor (15-2) as a drive. The stirring shaft (15-3) can move vertically in a barrel body (14) by means of a shaft lifting cylinder (15-7) to optimally wash the material and automatically discharge.

Description

A filter press system

Technical field

The invention relates to a filter press system.

Background technique

The filter press is mainly used for solid-liquid separation, so that it can be separated in the liquid part and the solid part to be used again. It can not only effectively prevent wastewater from polluting the environment, but also has significant economic benefits. The prior art filter press The above can achieve the separation of wastewater.

The prior art filter press has poor sealing performance, and the prior art filter press generally uses gas to achieve the function of squeezing materials. On the one hand, the gas suppression effect is not good, on the other hand, the discharged gas causes serious pollution to the environment.

In view of the above-mentioned shortcomings, the designer actively researches and innovates in order to create a filter press system including a plate filter press and a six-in-one filter press to make it more industrially valuable.

Summary of the invention

In order to solve the above technical problems, the purpose of the present invention is to provide a filter press system with a large filter area, a fast filter speed, and a shortened production cycle.

The filter press system of the present invention includes: a plate filter press and a six-in-one filter press. The discharge port of the plate-type filter press is connected with the feed port of the six-in-one filter press through a flange. The connection of the feed inlet is provided with a gasket, and the outlet of the plate-type filter press is provided with a cylinder push rod;

The plate-type filter press is used to filter the material to be filtered once, and the cylinder push rod transports the obtained solids to the six-in-one filter press;

The six-in-one pressure filter is used for secondary filtration of the solid.

Optionally, the plate-type filter press includes: a box body and a cylinder bracket arranged on the box body, the cylinder bracket is provided with a cylinder, the box body is provided with a filter plate, and the bottom of the filter plate A sintered mesh is provided, a scraper is provided below the sintered mesh, a filtrate outlet is provided at the bottom of the box body, an intermediate valve is provided in the middle of the bottom of the box body, and a sight mirror and a feed port are also provided on the box body , The plate-type filter press is arranged on the six-in-one filter press through a support frame.

Optionally, the filter plate is provided with a filter screen, the filter screen adopts 3-8 layers of metal sintered mesh, the filter plate adopts a hollow square structure, and the left and right sides are metal sintered meshes. The net enters and is discharged from the discharge port at the bottom of the filter plate, and the solid is blocked by a certain precision sintered net;

The box body is milled with a filter plate fixing groove, the filter plate is fixed in the fixed groove, and a cylinder push rod is installed in the upper part between the two adjacent filter plates. Equipped with a cylinder push rod and a filter plate at the bottom of the box.

Optionally, the six-in-one filter press includes a head, a barrel, a transmission mechanism, a pressing oil cylinder assembly, a pressing plate assembly, and a bottom assembly.

The head is connected to the barrel body, welded or bolted through a flange; the top of the head is welded with an oil cylinder seat, and the material pressing oil cylinder assembly and the oil cylinder seat are connected to the head; the pressure plate assembly is arranged on the barrel body The inside is connected with the pressing oil cylinder assembly; the bottom assembly is located under the barrel body and is welded to the barrel body.

Optionally, one end of the seal head is provided with a feed port and a cleaning port, and one end is provided with a liquid outlet and a vent port; it is also provided with a pressure relief valve, a pressure gauge, an observation port, an air seal port, an inspection port, and a pressure plate heating Or refrigerating inlet, pressure plate heating or refrigerating outlet; the opposite sides of the head are provided with upper brackets for lifting cylinders.

Optionally, the barrel body is provided with a barrel flange, a skirt, and a temperature measuring tube, and the barrel flange is welded to the barrel body; One side of the jacket is provided with a jacket heating or freezing inlet, and one side of the jacket is provided with a jacket heating or freezing outlet; the outer side of the barrel is provided with a discharge port assembly, which is welded to the barrel.

Optionally, the discharge port assembly includes a guide column, a discharge cylinder, a cylinder fixing plate, a nailing screw, a welding seat, a discharge port sealing plate, and a discharge port; there are two guide posts, one end and The barrel body is welded, and the other end is connected with the cylinder fixing plate, and the cylinder fixing plate is connected with the discharge cylinder; there are two nailing screws between the guide columns, one end is connected with the cylinder fixing plate, and the other end is connected with the welding seat , The welding seat is then connected to the inside of the discharge port, the barrel is equipped with a sealing ring, and the inside of the discharge port is pushed by the discharge cylinder and sealed with the sealing ring of the barrel.

Optionally, the transmission mechanism includes a reducer motor, an explosion-proof motor, a stirring shaft, an S-shaped scraper, an upper panel of the lifting shaft, a lower panel of the lifting shaft, and a lifting cylinder; the explosion-proof motor is connected to the reducer motor, and the reducer motor Connected with the stirring shaft, one end of the stirring shaft is connected with the S-shaped scraper, the other end is connected with the upper panel of the lifting shaft, the lower panel of the lifting shaft is connected with the reducer, and the lifting cylinder is connected with the upper panel of the lifting shaft and the lower lifting shaft. The panel is connected by a flange; the S-shaped scraper is provided with a shaft sleeve, and is connected with the stirring shaft through the shaft sleeve, and the cross-section of the S-shaped scraper is diamond-shaped, which can reduce resistance and increase strength.

Above the explosion-proof motor is provided a shaft lifting cylinder that drives the stirring shaft to move up and down in the barrel. The shaft lifting cylinder only lifts the stirring shaft up and down to achieve rapid up and down washing of materials.

Optionally, the material pressure oil cylinder assembly includes a material pressure oil cylinder, a tailstock of the material pressure oil cylinder, and a hydraulic power station of the oil cylinder. The hydraulic power station of the oil cylinder is composed of an explosion-proof motor, an electromagnetic switch valve, a gear pump, hydraulic oil, and a hydraulic oil pipe; The material pressure oil cylinder is connected with the oil cylinder base, and the hydraulic power station is connected with the oil pipe;

The six-in-one filter press adopts a single oil cylinder for pressure filtration. The material pressure cylinder adopts the first non-standard hollow shaft hydraulic cylinder design technology to transmit hydraulic pressure to the pressure plate assembly to directly squeeze the material up and down to realize the squeezing of the material in the barrel. ,filter;

The hydraulic power station uses an explosion-proof motor as the power, and the electromagnetic switch valve also uses an explosion-proof solenoid valve to work. It is equipped with multiple sets of control valves and multiple sets of pressure reducing valves to achieve different sets of control pressures without mutual interference. The solids are stirred by S-type scraper and discharged directly to the gear rotary pulverizer to crush the dried materials.

As an improvement of the present invention, the transmission mechanism is connected with the pressure oil cylinder assembly and is located on the top of the six-in-one pressure filter, and the reducer is connected to the tailstock of the pressure oil cylinder;

The pressure plate assembly includes a pressure plate flange, a pressure plate panel, a pressure plate lower panel, a pressure plate size head, a size head panel, a sintered mesh, a feed port, a liquid outlet, a copper sleeve composition, a stirring shaft sleeve, a gas seal tube, a gas Sealing port, pressure plate and shaft sleeve sealing groove, size head support plate, pressure plate and lower panel support plate;

The pressure plate flange is welded to the pressure plate panel and the pressure plate lower panel, the pressure plate and the pressure plate are welded, the large and small head panels are welded to the pressure plate, the sintered mesh is welded to the pressure plate, the gas The sealing tube is welded to the pressure plate flange, the stirring shaft sleeve, and the upper and lower plates of the pressure plate, and the stirring shaft sleeve is welded to the upper and lower plates of the pressure plate.

The bottom component includes a bottom flange, a bottom barrel, a bottom panel, a bottom sintered mesh, a bottom filtrate outlet, a bottom heating or freezing inlet, a bottom heating or freezing outlet, a bottom support plate, a bottom reinforcement rib, and a locking flange , Locking flange fixing bracket, locking oil cylinder, oil cylinder seat, jacking oil cylinder, oil cylinder connecting parts, gas sealing pipe;

The bottom flange is welded to the barrel, the bottom panel is welded to the flange and the reinforcing ribs, the bottom sintered mesh is welded to the bottom panel, the bottom filtrate outlet is connected to the bottom panel, the bottom heating or freezing inlet and outlet are connected to the bottom panel, and the cylinder seat is connected to the bottom panel. The bottom barrel is connected, the locking flange fixing bracket is welded to the bottom barrel, the locking flange is connected with the locking flange fixing bracket, and the locking cylinder is connected with the cylinder base.

As another improvement of the present invention, the transmission mechanism is connected to the bottom assembly and is located at the bottom of the six-in-one filter press, and the reducer is flanged to the reducer below the bottom assembly.

The bottom component includes a bottom flange, a bottom barrel, a bottom panel, a copper sleeve composition, an air seal tube, a stirring shaft sleeve, a bottom sintered mesh, a bottom filtrate outlet, a shaft sleeve sealing groove, a bottom heating or freezing inlet, Bottom heating or freezing outlet, bottom support plate, bottom stiffener, locking flange, locking flange fixing bracket, locking cylinder, cylinder seat, jacking cylinder, and cylinder connector;

The bottom flange is welded to the barrel body, the gas seal pipe, the stirring shaft sleeve, and the bottom panel are welded; the bottom panel is welded to the bottom flange, the bottom reinforcement rib, and the bottom sintered mesh; the bottom filtrate outlet, bottom The heating or freezing inlet and outlet are connected to the bottom panel; the oil cylinder seat is connected to the bottom barrel, and the locking flange fixing bracket is welded to the bottom barrel; the locking flange is connected to the locking flange fixing bracket to lock the oil cylinder Connect with the cylinder block.

The pressure plate assembly includes a pressure plate flange, a pressure plate panel, a pressure plate lower panel, a pressure plate size head, a size head panel, a sintered mesh, a feed port, a liquid outlet, an air seal port, a pressure plate sealing groove, a small head support plate, and a pressure plate Support plate for upper and lower panels;

The pressure plate flange is welded to the pressure plate face plate and the pressure plate lower panel, the gas-tight tube is welded to the pressure plate face plate, the pressure plate and the pressure plate are welded, and the pressure plate and the pressure plate are welded. The sintered mesh is welded to the lower panel of the pressing plate.

Optionally, the lower upper panel or the bottom upper and lower panels of the pressure plate are provided with shaft air seals at positions corresponding to the stirring shaft; the sealing ring adopts Y-type silicon rubber and fluororubber air seals.

Optionally, the sealing ring, pressure plate and shaft sleeve sealing groove, shaft sleeve sealing groove and pressure plate sealing groove are one or more of air seal, O-shaped seal, square seal, Y-shaped seal, and diamond seal;

The material of the sealing groove is rubber, which can be nitrile butadiene rubber, EPDM rubber, polytetrafluoroethylene, styrene butadiene rubber, butyl rubber, chloroprene rubber, silica gel, fluorine rubber, polytetrafluoroethylene coated chloro rubber.

Optionally, the six-in-one filter press further includes a bracket rotating mechanism, and the bracket rotating mechanism includes a bracket, a reducer, a rotating electric machine, a rotating mechanism, a braking system, a coupling, a bearing, and a reducer fixing seat; The rotating mechanism is composed of a rotating shaft, a gear, a chain, and a protective cover; the fixed base of the reducer is welded to the bracket, the reducer is connected to the fixed base, and the rotating mechanism is connected to the bracket.

Optionally, it also includes nitrogen circulating airtight drying technology. The equipment is equipped with heater, centrifugal fan, condenser and receiving tank. The hot nitrogen output from the nitrogen heater is blown into the barrel through the centrifugal fan to dry the material. After drying, the solvent carried out by nitrogen during drying is recovered through the sintered mesh through the condenser.

With the above solution, the filter press system of the present invention has at least the following advantages:

1. Replace the centrifuge;

2. The entire system is sealed and operated without pollution;

3. The first to use separate design of hydraulic cylinder and reducer system;

4. The sealing groove and sealing ring made of rubber material such as air seal, O-shaped seal, square seal, Y-shaped seal, diamond seal, etc. are adopted, which have good sealing performance, no odor overflow, and prevent leakage;

5. The hydraulic pressure is transformed into a pressure plate, and the solid content of the filter cake is high, reducing the drying time and energy consumption;

6. The upper and lower sintered nets are used, with large filtering area and fast filtering speed, which shortens the production cycle;

7. Use S-type stirring to automatically discharge the material;

8. Use gear rotating grinder;

9. Adopting nitrogen heating cycle airtight drying technology, which greatly reduces the impact on the environment and prevents all kinds of toxic drying gases from spilling;

10. It can be used in the press filtration of various solid-liquid separation and activated carbon separation media such as medicine, chemical industry, coatings, pesticides, dyes, sludge, petroleum, papermaking, etc.; filtration precision: 0.1μm-300μm;

11. It is the first to adopt a plate filter and a six-in-one filter as a whole, which can reduce the filtration time and improve the filtration efficiency, especially to solve some materials that are difficult to separate from solid and liquid;

12. The six-in-one filter press adopts a flat-bottom design, which can reduce washing solvents and save costs.

The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it in accordance with the content of the description, the preferred embodiments of the present invention are described in detail below with the accompanying drawings.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the filter press system of the present invention;

Figure 2 is a schematic view of the structure of the plate filter press of the present invention;

Figure 3 is a schematic diagram of the structure of the plate filter press plate of the present invention;

4 and 5 are structural schematic diagrams of the first embodiment of the six-in-one filter press of the present invention;

Figure 6 is a schematic structural view of a second embodiment of the six-in-one filter press of the present invention;

Figure 7 is a top view of the structure of the head of the six-in-one filter press of the present invention;

Figure 8 is a schematic structural view of the discharge port assembly of the six-in-one filter press of the present invention;

9 is a schematic structural view of the pressure plate assembly of the first embodiment of the six-in-one filter press of the present invention;

10 is a schematic structural view of the pressure plate assembly of the second embodiment of the six-in-one pressure filter of the present invention;

11 and 12 are structural schematic diagrams of the bottom assembly of the second embodiment of the six-in-one filter press of the present invention;

Among them, the reference signs are: 1 box body, 2 cylinders, 3 cylinder brackets, 4 stuffing plates, 5 gaskets, 6 sintered mesh, 6-1 stainless steel support plates, 7 scrapers, 8 filtrate outlets, 9 intermediate valves, 10 Support frame, 11 sight glasses, 12 feed inlets;

13 head, 14 barrel body, 15 transmission mechanism, 16 material pressing cylinder assembly, 17 pressing plate assembly, 18 bottom assembly, 19 bracket rotation mechanism;

Seal head: 13-1 feed port, 13-2 cleaning port, 13-3 liquid outlet, 13-4 vent port, 13-5 pressure relief valve, 13-6 pressure gauge, 13-7 hermetic port, 13 -8 inspection port, 13-9 pressure plate heating or freezing inlet, 13-10 pressure plate heating or freezing outlet, 13-11 jacking cylinder upper bracket, 13-12 discharge port assembly;

Discharge port components: 13-121 guide column, 13-122 discharge cylinder, 13-123 cylinder fixing plate, 13-124 nailing screw, 13-125 welding seat, 13-126 discharge port sealing plate, 13-127 Draw inside the discharge port;

Barrel body: 14-1 jacket, 14-2 jacket heating or freezing inlet, 14-3 jacket heating or freezing outlet, 14-4 jacking up the lower bracket of the cylinder;

Transmission mechanism: 15-1 reducer motor, 15-2 explosion-proof motor, 15-3 stirring shaft, 15-4S type scraper, 15-5 shaft lifting upper panel, 15-6 shaft lifting lower panel, 15-7 shaft lifting cylinder ；

Pressure material cylinder assembly: 16-1 pressure material cylinder;

Pressure plate components: 17-1 pressure plate flange, 17-2 pressure plate front panel, 17-3 pressure plate lower panel, 17-4 pressure plate size head, 17-5 size head panel, 17-6 sintered mesh, 17-7 feed port , 17-8 liquid outlet, 17-9 copper sleeve composition, 17-10 stirring shaft sleeve, 17-11 air-sealed tube, 17-12 air-sealed port, 17-13 large and small supporting plate, 17-14 pressure plate up and down Panel support plate, 17-15Y type fluorine rubber ring (shaft), 17-16Y type fluorine rubber ring (press plate), 17-18O type sealing ring;

Bottom components: 18-1 bottom flange, 18-2 bottom barrel, 18-3 bottom panel, 18-4 copper sleeve composition, 18-5 air-tight tube, 18-6 stirring shaft sleeve, 18-7 bottom sintering Net, 18-8 bottom filtrate outlet, 18-9O type sealing ring (shaft), 18-10 bottom heating or freezing inlet, 18-11 bottom heating or freezing outlet, 18-12 bottom support plate, 18-13 bottom Reinforcing ribs, 18-14 locking flange, 18-15 locking flange fixing bracket, 18-16 jacking cylinder, 18-17 locking cylinder, 18-18Y fluorine rubber ring (shaft), 18-19 deceleration Machine flange.

detailed description

The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

The filter press system of the present invention includes a plate-type filter press and a six-in-one filter press. The entire system is sealed and operated without pollution, and realizes automatic filter press, cleaning, material pressing, drying, discharging and crushing. Utilizing the large surface area of the plate type, the material can be separated quickly from solid and liquid, and the separated solid is pushed into the six-in-one pressure filter through the cylinder push rod and then pressed dry. The solids flow in from the inlet and use a single hydraulic cylinder to filter pressure. After the sintered filter screen is filtered, the solid and liquid separate and flow out. The solids are intercepted outside the sintered filter screen and discharged through the discharge port. The structure of the invention is mainly based on the principle of surface filtration and adsorption filtration, and has the characteristics of accuracy, high efficiency and stability, large filtration area, fast filtration speed, and shortened production cycle. The cylinder hydraulic power station of the six-in-one filter press adopts the first non-standard hollow shaft hydraulic cylinder design technology to transmit the hydraulic pressure to the pressure plate assembly to directly squeeze the material up and down, so as to squeeze and filter the material in the barrel; use an explosion-proof motor As the driving force, the solenoid switch valve also uses explosion-proof solenoid valve to work, equipped with multiple sets of control valves, multiple sets of pressure reducing valves, to achieve multiple sets of different control pressures, and will not interfere with each other, the solid obtained by the pressure filter is directly stirred by the S-type scraper The material is discharged to the gear rotating pulverizer to crush the dried material.

This design can shorten the length of the stirring shaft, make the operation accuracy of the stirring shaft high, prolong the service life of the stirring shaft, avoid the unbalanced work of filter press and stirring, and realize the relatively stable and long life of the equipment.

The filter press system of this embodiment includes: a plate filter press and a six-in-one filter press. The discharge port of the plate-type filter press is connected with the feed port of the six-in-one filter press through a flange. A gasket is provided at the connection of the feed inlet, and a cylinder push rod is provided at the outlet of the plate-type filter press;

The six-in-one pressure filter is used for secondary filtration of the solid.

The box body is welded with stainless steel plates at the left, right, front and rear bottoms, with square flanges welded on the top and flanges on the top plate for connection with screws, which can be easily disassembled and repaired.

The filter screen of the filter plate is arranged in layers, the first layer is the protective layer, the second layer is the filter layer, the third layer is the protective layer, the four to eight layers are the support layers, the stainless steel sintered mesh is left and right, and the surrounding stainless steel plates It is welded with stainless steel sintered mesh and stainless steel support plate to form a whole. The periphery of the sintered mesh is welded with stainless steel plates, and the left and right sides are the stainless steel support plates of the stainless steel sintered mesh, with certain gaps in the middle to ensure the smooth flow of liquid.

The four directions of the box refer to that the cylinder push rod pushes the solid material to the bottom of the filter plate, and there is a 100mm distance between the bottom of the filter plate and the bottom of the box. At this time, the solids are in a space of 100mm, and four cylinder push rods are installed around the box, and then the solid materials are pushed into the six-in-one. Further, the box body is milled with a filter plate fixing groove, the filter plate is fixed in the fixed groove, a cylinder push rod is installed in the upper part between two adjacent filter plates, and the four All directions are equipped with cylinder push rods.

The upper part of the filter plate and the filter plate is equipped with a cylinder push rod, which is the top end between the filter plate and the filter plate. The solid materials are all under the push rod, which can ensure that all the six-in-one filter press is pushed into the filter press system. The filter adopts a fully enclosed structure, and no exhaust gas escapes. The filter material is all made of stainless steel sintered mesh, which can improve the filtration efficiency and precision, and is safer and more reliable. The filter plate adopts a fixed type, and a cylinder push rod is used to connect the filter plate and the filter plate. The materials in the room are automatically discharged into the six-in-one filter press.

The bottom of the six-in-one pressure filter adopts a flat bottom structure, which can improve the accuracy and service life of the equipment;

In addition to the technical solution that the transmission mechanism can be set at the top of the six-in-one filter press, the transmission mechanism can also be set at the bottom of the six-in-one filter press, so that the stirring and reducer are at the bottom, which will shorten the stirring shaft and improve Stability, mixing and pressing are implemented at the top and bottom respectively.

The working methods of the plate filter press include:

The material is transported into the box with a diaphragm pump as the power. When the filtrate is higher than the high level of the filter plate, the liquid continuously flows out from the sintered mesh of the filter plate and is discharged through the liquid outlet. After all the materials enter the box, close the side filter plate , The unfiltered filtrate flows out from the filter plate at the bottom of the box, and the solids are blocked by the sintered mesh in the gap between the box filter plate and the filter plate. After the pressure filtration is completed, the upper and lower cylinder push rods are used to ensure that the remaining in the box The solid is pushed into the filter press.

As a first embodiment, the six-in-one filter press of the present invention includes a head, a barrel, a transmission mechanism, a material pressing cylinder assembly, a pressing plate assembly, and a bottom assembly.

One end of the seal head is provided with a feed port and a cleaning port, and one end is provided with a liquid outlet and a vent; it is also provided with a pressure relief valve, a pressure gauge, an observation port, an air seal port, an inspection port, a pressure plate heating or freezing inlet, The pressure plate heating or freezing outlet; the opposite sides of the head are provided with upper brackets of the jacking cylinder.

The barrel body is provided with a barrel flange, a skirt, and a temperature measuring tube, and the barrel flange is welded to the barrel body; the barrel body is welded with jackets on opposite sides of the barrel and the lower bracket of the lifting cylinder, and the one side jacket It is provided with a jacketed heating or freezing inlet, and one side of the jacket is provided with a jacketed heating or freezing outlet; the outer side of the barrel is provided with a discharge port assembly, which is welded to the barrel.

The discharge port assembly includes a guide column, a discharge cylinder, a cylinder fixing plate, a nailing screw, a welding seat, a discharge port sealing plate, and a discharge port internal extraction; there are two guide posts, one end is welded to the barrel body, The other end is connected to the cylinder fixing plate, and the cylinder fixing plate is connected to the discharge cylinder; there are two nailing screws between the guide columns, one end is connected to the cylinder fixing plate, the other end is connected to the welding seat, and the welding seat is then connected It is connected to the inside of the discharge port, the barrel is equipped with a sealing ring, and the inside of the discharge port is pushed by the discharge oil cylinder and sealed by the sealing ring of the barrel.

The transmission mechanism includes a reducer motor, an explosion-proof motor, a stirring shaft, an S-shaped scraper, a shaft lifting upper panel, a shaft lifting lower panel, and a shaft lifting cylinder; the explosion-proof motor is connected to the reducer motor, and the reducer motor is connected to the stirring shaft One end of the stirring shaft is connected with the S-shaped scraper, the other end is connected with the upper panel of the lifting shaft, the lower panel of the lifting shaft is connected with the reducer, and the shaft lifting cylinder is connected with the upper panel of the lifting shaft and the lower panel of the lifting shaft through a flange Connection; The S-shaped scraper has a shaft sleeve, which is connected with the stirring shaft through the shaft sleeve. The S-shaped scraper has a rhombus cross section, which can reduce resistance and increase strength.

Above the explosion-proof motor is provided a shaft lifting cylinder that drives the stirring shaft to move up and down in the barrel. The shaft lifting cylinder only lifts the stirring shaft up and down to realize rapid up and down washing of materials.

The material pressing oil cylinder assembly includes a material pressing oil cylinder, a tailstock of the material pressing oil cylinder, and an oil cylinder hydraulic power station. The oil cylinder hydraulic power station is composed of an explosion-proof motor, an electromagnetic switch valve, a gear pump, hydraulic oil, and a hydraulic oil pipe; The oil cylinder is connected with the oil cylinder base, and the hydraulic power station is connected with the oil pipe;

The transmission mechanism is connected with the pressure oil cylinder assembly and is located on the top of the six-in-one pressure filter, and the reducer is connected to the tailstock of the pressure oil cylinder;

The pressure plate flange is welded to the pressure plate panel and the pressure plate lower panel, the pressure plate and the pressure plate are welded, the large and small head panels are welded to the pressure plate, the sintered mesh is welded to the pressure plate, the gas The sealing tube is welded to the pressure plate flange, the stirring shaft sleeve, and the upper and lower plates of the pressure plate, and the stirring shaft sleeve and the upper and lower plates of the pressure plate are welded;

The barrel body is provided with a pressure plate assembly for squeezing materials, the upper part of the head is provided with a pressure oil cylinder seat, and the pressure oil cylinder seat is provided with a pressure plate driving the pressure plate up and down in the barrel. Movement to realize the material pressing cylinder that squeezes the material in the barrel;

The stirring shaft passes through the head and the pressure plate assembly and extends into the barrel. The lower end of the stirring shaft is connected with an S-shaped scraper, wherein the pressure plate assembly is provided with a pressure plate gas seal at the corresponding position of the pressure oil cylinder, An air seal for the shaft is provided at a position corresponding to the stirring shaft on the pressing plate.

In this embodiment, the material pressing oil cylinder seat is fixed on the upper part of the head, and the pressing plate assembly is driven to move up and down to extrude the material to filter the material. The stirring shaft passes through the pressing oil cylinder assembly and is connected to the reducer motor. The reducer is equipped with explosion-proof Driven by the motor, the stirring shaft moves up and down in the barrel through the shaft lifting cylinder to achieve the best washing and automatic discharging of the material, so that the stirring and extrusion do not interfere with each other.

The seal between the pressing plate and the barrel body adopts an air seal, the seal between the pressing plate and the stirring shaft adopts an air seal, and the sealing ring adopts a Y-type silicon rubber and fluorine rubber gas sealing ring, which is passed in during use. The compressed gas ensures the sealing performance and prolongs the service life of the sealing ring.

The pressure filter adopts a single oil cylinder for pressure filtration, which solves the problem of the non-synchronization of the pressure plates in the multi-cylinder pressure filter, which causes the strain and wear of the filter pressure tank body and shortens the service life. The hollow shaft design makes the stirring mechanism and the hydraulic cylinder realize coaxiality Work to avoid the partial load of filter press and stirring, and increase the service life of the equipment.

As the second embodiment of the present invention, the six-in-one filter press of the present invention includes a head, a barrel, a transmission mechanism, a material pressing cylinder assembly, a pressing plate assembly, and a bottom assembly.

The difference from the foregoing embodiment is that the transmission mechanism is connected to the bottom assembly and is located at the bottom of the six-in-one filter press, and the reducer is flanged to the reducer under the bottom assembly.

In this embodiment, the stirring and the reducer are both at the bottom, which will shorten the stirring shaft and improve the stability. The stirring and pressing are implemented at the top and bottom respectively. The present invention also includes a nitrogen circulating airtight heating and drying technology, a nitrogen heater, the air inlet of the nitrogen heater is connected to the recovery tank, and the air outlet of the nitrogen heater outputs heated nitrogen to the barrel through a centrifugal fan Inside the body, the recovery tank receives the nitrogen output from the pressure filter through a condenser. The bottom of the recovery tank is provided with a recovery liquid hand valve. Nitrogen is heated and blown into the barrel by a centrifugal fan to dry the material. After drying, the solvent from the drying process is recovered through the sintered net and the condenser, thereby reducing the impact on the environment and eliminating all kinds of toxic The drying gas overflows.

The entire pressure filter of the present invention is air-sealed without pollution; it realizes automatic filtration, cleaning, pressing, drying, discharging, and smashing. It can be customized to install the peripheral sintered net and the bottom and side discharge ports can be driven by cylinders. It is automatically closed. If the peripheral sintered net is not used, the cylinder body and the barrel body can be integrated. The first non-standard hollow shaft hydraulic cylinder (pressing oil cylinder) design technology, the shaft lifting cylinder uses a double rod structure, and the mixing deceleration power mechanism is concentrically connected with the pressure oil cylinder through a flange bracket, and the mixing shaft can be from the pressure oil cylinder. The shaft center extends out of the mixing work to realize that mixing and extrusion do not interfere with each other. The single pressure oil cylinder pressure filter solves the problem of the pressure plate asynchronous in the multi-cylinder pressure filter, which causes the strain and wear of the filter pressure tank body and shortens the service life. , The hollow shaft design enables the mixing mechanism and the hydraulic cylinder to work coaxially, avoiding the unbalanced work of filter press and mixing, and the equipment achieves a stable and long life. The hydraulic power station uses 2.2KW50HZ explosion-proof motor power, flow 9L/MIN, pressure 12MPA , Solenoid switch valve also uses explosion-proof solenoid valve to work, equipped with 3 groups of control valves, of which 2 groups are equipped with pressure reducing valves, to achieve three groups of different control pressures, and there will be no mutual interference, the solid is directly discharged to the gear rotation with S-shaped stirring The crusher performs crushing and packaging.

Operation instructions of the filter press system of the present invention:

1. Connect the gas feed pipe and the pressure relief valve pipe to a safe place to prevent the pressure relief valve from opening and spraying people; connect the reactor outlet and the plate filter inlet.

2. The material is transported into the box by a diaphragm pump as the power. When the filtrate is higher than the filter plate, the liquid continuously flows out from the sintered mesh of the filter plate and is discharged through the liquid outlet. After all the materials enter the box, close the side Filter plate, the unfiltered filtrate flows out from the filter plate at the bottom of the box body, and the solids are blocked by the sintered mesh in the gap between the box body filter plate and the filter plate. After the middle pressure filtration is completed, the upper and lower cylinder push rods are used to ensure that they stay in the box. The solids in the body are pushed into the filter press.

3. The pressure plate and the stirring shaft of the six-in-one filter press must be raised to the top before feeding, and the pressure plate and the shaft are air-tightly sealed to ensure that no liquid is leaked.

4. Open the discharge valve of the plate filter, so that the material in the plate filter enters the six-in-one pressure filter, through the sintered mesh to achieve solid-liquid separation, and the liquid is continuously discharged from the liquid port.

5. When all the material of the plate filter enters the six-in-one pressure filter, close the liquid inlet valve and start the oil cylinder for pressure filtration until there is no filtrate flowing out of the liquid outlet.

6. Add rinsing solvent and turn on the stirring motor until the material reaches a uniform rinsing effect.

7. After rinsing is completed, start the oil tank to press out the rinsing liquid through the sintered mesh until it is pressed dry.

8. Close the pressing oil cylinder. Open the vent valve, drain the gas in the pot, the pointer of the pressure gauge in the pot shows 0, make sure there is no pressure in the pot, then open the discharge valve. Turn on the upper and lower mixing cylinders, turn on the mixing motor, and use a scraper to break up the dried materials.

9. Ensure that there is no pressure in the pot. Turn on the nitrogen heater and condenser to increase the temperature to the specified temperature. Turn on the nitrogen circulation fan to purge nitrogen into the pot. The drying effect is achieved by cycling sequentially; after the nitrogen is recovered by the condenser, the solvent is reheated and then recycled, so that the nitrogen does not lose the taste and does not come out of the pot; the material stops drying after passing the test.

10. Open the discharge valve. Turn on the upper and lower mixing cylinders, turn on the mixing motor, and scrape the dried material from the top to the bottom with a scraper from the solid discharge port. Enter the gear rotating crusher for crushing.

11. In actual operation, after each operation, be sure to adjust the pressing switch so that the pressing plate in the filter is in the upper reset position.

The six-in-one filter press of the present invention is mainly used for solid-liquid separation to fully separate solids and liquids, replacing the current general centrifuge and three-in-one. The prior art filter press has the disadvantages of poor sealing performance and significant loss of solid drying after pressure filtration. In addition, the prior art has a small filtering area, resulting in low filtering speed, resulting in poor product quality stability and applicability to a certain extent. influences.

The invention is the first to adopt a plate-type sintered mesh filter and a six-in-one filter press as a whole. The large surface area of the plate is used to quickly separate solid and liquid materials. The separated solid is passed through the cylinder push rod to the six-in-one filter press and then pressed dry. After being filtered by the sintered filter, the solid and liquid are separated and flow out, and the solid is intercepted outside the sintered filter and discharged through the discharge port. The entire system is airtight operation, no pollution, and realizes automatic pressure filtration, cleaning, material pressing, drying, discharging and crushing. It has the characteristics of accuracy, high efficiency and stability, large filtering area and fast filtering speed, which shortens the production cycle. It is the first to use a separate design of hydraulic cylinder and reducer system. It adopts Y-type silicone rubber and fluorine rubber gas sealing ring, which has good sealing performance, no odor spillover, and prevents leakage; adopts S-type stirring and automatic discharging; adopts gear rotating crusher; adopts nitrogen heating cycle airtight drying technology, which greatly reduces The impact on the environment prevents all kinds of toxic drying gases from spilling; the flat-bottom design can reduce the washing solvent and save costs.

It is the first to use a plate filter and a six-in-one filter as a whole. This structure can reduce the filtration time and improve the filtration efficiency. The filter area can be increased or decreased according to customer requirements. The filter plate slot structure design especially solves some difficult solid-liquid separation Of materials.

The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements can be made without departing from the technical principles of the present invention. And modifications, these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

A filter press system, characterized in that it comprises: a plate filter press and a six-in-one filter press. The discharge port of the plate-type filter press is connected with the feed port of the six-in-one filter press through a flange, and the discharge A sealing gasket is provided at the junction of the inlet and the feed inlet, and a cylinder push rod is provided at the outlet of the plate-type filter press;

The plate-type filter press is used to filter the material to be filtered once, and the cylinder push rod transports the obtained solids to the six-in-one filter press;

The six-in-one pressure filter is used for secondary filtration of the solid.
The filter press according to claim 1, characterized in that the plate-type filter press comprises: a box body and a cylinder bracket arranged on the box body, the cylinder bracket is provided with a cylinder, and the box body A filter plate is provided, a sintered mesh is provided below the filter plate, a scraper is provided below the sintered mesh, a filtrate outlet is provided at the bottom of the box body, an intermediate valve is provided in the middle of the bottom of the box body, and the box body A sight glass and a feed port are also provided on the upper surface, and the plate-type filter press is arranged on the six-in-one filter press through a support frame.
The filter press system of claim 2, wherein the filter plate is provided with a filter screen, the filter screen adopts 3-8 layers of metal sintered mesh, the filter plate adopts a hollow square structure, and the left and right sides are metal sintered mesh , Welded with metal around;

The box body is milled with a filter plate fixing groove, the filter plate is fixed in the fixed groove, and a cylinder push rod is installed in the upper part between the two adjacent filter plates. Equipped with a cylinder push rod and a filter plate at the bottom of the box.
The filter press system according to claim 1, wherein the six-in-one filter press includes a head, a barrel, a transmission mechanism, a pressure cylinder assembly, a pressure plate assembly, and a bottom assembly;

The head is connected to the barrel body, welded or bolted through a flange; the top of the head is welded with an oil cylinder seat, the material pressing oil cylinder assembly and the oil cylinder seat are connected to the head; the pressure plate assembly is arranged on the head The inside of the barrel body is connected with the material pressing oil cylinder assembly; the bottom assembly is located below the barrel body and is welded to the barrel body.
The filter press system according to claim 4, wherein one end of the seal head is provided with a feed port and a cleaning port, and one end is provided with a liquid outlet and a vent; it is also provided with a pressure relief valve, a pressure gauge, and an observation port. Port, air-sealed port, inspection port, pressure plate heating or freezing inlet, pressure plate heating or freezing outlet; the opposite sides of the head are provided with upper brackets for lifting cylinders.
The filter press system according to claim 5, wherein the barrel body is provided with a barrel flange, a skirt, and a temperature measuring tube, and the barrel flange is welded to the barrel; Jacket and the lower bracket of the jacking cylinder, the one side of the jacket is provided with a jacket heating or freezing inlet, and one side of the jacket is provided with a jacket heating or freezing outlet; the outer side of the barrel is provided with a discharge port assembly, and The barrel is welded.
The filter press system according to claim 6, wherein the discharge port assembly includes a guide column, a discharge cylinder, a cylinder fixing plate, a nailing screw, a welding seat, a discharge port sealing plate, and a discharge port inner pump ；

There are two guide posts, one end is welded to the barrel, the other end is connected to the cylinder fixing plate, and the cylinder fixing plate is then connected to the discharge cylinder; there are two tightening screws between the guide posts, one end is connected to the cylinder The fixed plate is connected, and the other end is connected with a welding seat, and the welding seat is connected to the inside of the discharge port. The barrel is equipped with a sealing ring, and the inside of the discharge port is pushed by the discharge cylinder and sealed by the sealing ring of the barrel.
The filter press system according to claims 5-7, wherein the transmission mechanism includes a reducer motor, an explosion-proof motor, a stirring shaft, an S-type scraper, an upper panel of the shaft, a lower panel of the shaft, and a shaft cylinder;

The explosion-proof motor is connected to the reducer motor, the reducer motor is connected to the stirring shaft, one end of the stirring shaft is connected to the S-shaped scraper, the other end is connected to the upper panel of the lifting shaft, and the lower panel of the lifting shaft is connected to the reducer. The shaft lifting cylinder is connected with the upper panel of the lifting shaft and the lower panel of the lifting shaft by flanges;

The S-shaped scraper is provided with a shaft sleeve, which is connected with the stirring shaft through the shaft sleeve, and the cross-section of the S-shaped scraper is diamond-shaped.
The filter press system according to claim 8, wherein the material pressing oil cylinder assembly comprises a material pressing oil cylinder, a tailstock of the material pressing oil cylinder, and a hydraulic power station of the oil cylinder;

The oil cylinder hydraulic power station is composed of an explosion-proof motor, an electromagnetic switch valve, a gear pump, hydraulic oil, and a hydraulic oil pipe; the material pressing oil cylinder is connected with the oil cylinder seat, and the hydraulic power station is connected by an oil pipe and an oil pipe;

The six-in-one filter press adopts a single oil cylinder for pressure filtration. The material pressure cylinder adopts the first non-standard hollow shaft hydraulic cylinder design technology to transmit hydraulic pressure to the pressure plate assembly to directly squeeze the material up and down to realize the squeezing of the material in the barrel. ,filter;

The hydraulic power station uses an explosion-proof motor as the power, and the electromagnetic switch valve also uses an explosion-proof solenoid valve to work. It is equipped with multiple sets of control valves and multiple sets of pressure reducing valves to achieve different sets of control pressures without mutual interference. The solids are stirred by S-type scraper and discharged directly to the gear rotary pulverizer to crush the dried materials.
The filter press system according to claim 9, wherein the transmission mechanism is connected to the press oil cylinder assembly and is located on the top of the six-in-one filter press, and the reducer is connected to the tailstock of the press oil cylinder;

The pressure plate assembly includes a pressure plate flange, a pressure plate panel, a pressure plate lower panel, a pressure plate size head, a size head panel, a sintered mesh, a feed port, a liquid outlet, a copper sleeve composition, a stirring shaft sleeve, a gas seal tube, a gas Sealing port, pressure plate and shaft sleeve sealing groove, size head support plate, pressure plate and lower panel support plate;

The pressure plate flange is welded to the pressure plate panel and the pressure plate lower panel, the pressure plate and the pressure plate are welded, the large and small head panels are welded to the pressure plate, the sintered mesh is welded to the pressure plate, the gas The sealing tube is welded to the pressure plate flange, the stirring shaft sleeve, and the upper and lower plates of the pressure plate, and the stirring shaft sleeve is welded to the upper and lower plates of the pressure plate.
The filter press system according to claim 10, wherein the bottom component includes a bottom flange, a bottom barrel, a bottom panel, a bottom sintered mesh, a bottom filtrate outlet, a bottom heating or freezing inlet, a bottom heating or Refrigeration outlet, bottom support plate, bottom reinforcement, locking flange, locking flange fixing bracket, locking cylinder, cylinder seat, jacking cylinder, cylinder connecting parts, air seal pipe;

The bottom flange is welded to the barrel, the bottom panel is welded to the flange and the reinforcing ribs, the bottom sintered mesh is welded to the bottom panel, the bottom filtrate outlet is connected to the bottom panel, the bottom heating or freezing inlet and outlet are connected to the bottom panel, and the cylinder seat is connected to the bottom panel. The bottom barrel is connected, the locking flange fixing bracket is welded to the bottom barrel, the locking flange is connected with the locking flange fixing bracket, and the locking cylinder is connected with the cylinder base.
The filter press system according to claim 9, wherein the transmission mechanism is connected to the bottom assembly and is located at the bottom of the six-in-one filter press, and the reducer is flanged to the reducer below the bottom assembly;

The bottom component includes a bottom flange, a bottom barrel, a bottom panel, a copper sleeve composition, an air seal tube, a stirring shaft sleeve, a bottom sintered mesh, a bottom filtrate outlet, a shaft sleeve sealing groove, a bottom heating or freezing inlet, Bottom heating or freezing outlet, bottom support plate, bottom stiffener, locking flange, locking flange fixing bracket, locking cylinder, cylinder seat, jacking cylinder, and cylinder connector;

The bottom flange is welded to the barrel body, the gas seal pipe, the stirring shaft sleeve, and the bottom panel are welded; the bottom panel is welded to the bottom flange, the bottom reinforcement rib, and the bottom sintered mesh; the bottom filtrate outlet, bottom The heating or freezing inlet and outlet are connected to the bottom panel; the oil cylinder seat is connected to the bottom barrel, and the locking flange fixing bracket is welded to the bottom barrel; the locking flange is connected to the locking flange fixing bracket to lock the oil cylinder Connect with the cylinder block.
The filter press system according to claim 12, wherein the press plate assembly includes a press plate flange, a press plate front panel, a press plate lower panel, a press plate large and small head, a small head panel, a sintered mesh, a material inlet, and a liquid outlet , Hermetic sealing port, pressure plate sealing groove, small head support plate, pressure plate and lower panel support plate;

The pressure plate flange is welded to the pressure plate face plate and the pressure plate lower panel, the gas-tight tube is welded to the pressure plate face plate, the pressure plate and the pressure plate are welded, and the pressure plate and the pressure plate are welded. The sintered mesh is welded to the lower panel of the pressing plate.
The filter press system according to claim 10, wherein the six-in-one filter press further comprises a bracket rotating mechanism, and the bracket rotating mechanism includes a bracket, a reducer, a rotating electric machine, a rotating mechanism, a braking system, and a coupling Fixing seat of gear, bearing, reducer;

The rotating mechanism is composed of a rotating shaft, a gear, a chain, and a protective cover;

The fixed base of the reducer is welded to the bracket, the reducer is connected to the fixed base, and the rotating mechanism is connected to the bracket.
The filter press system according to claim 1, characterized in that it also includes a nitrogen circulating airtight drying technology. The equipment has a heater, a centrifugal fan, a condenser and a receiving tank, and the hot nitrogen output from the nitrogen heater is passed through the centrifugal The fan blows into the barrel to dry the material, and after drying, the solvent taken out by the nitrogen during drying is recovered through the sintered mesh through the condenser.
The filter press system according to claim 7, 10, 12, 13, wherein the sealing ring, pressure plate and shaft sleeve sealing groove, shaft sleeve sealing groove and pressure plate sealing groove are air-sealed, O-shaped seal, square One or more of seal, Y-shaped seal and diamond seal;

The material of the sealing groove is rubber, which can be nitrile butadiene rubber, EPDM rubber, polytetrafluoroethylene, styrene butadiene rubber, butyl rubber, chloroprene rubber, silica gel, fluorine rubber, polytetrafluoroethylene coated chloro rubber.