CN216878018U

CN216878018U - Tower filter press for low-pressure air source

Info

Publication number: CN216878018U
Application number: CN202220489574.XU
Authority: CN
Inventors: 冯庸; 秦松; 孙晓晓; 房基; 王凯
Original assignee: Shandong Fude Environmental Protection Co ltd
Current assignee: Shandong Fude Environmental Protection Co ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-07-05
Anticipated expiration: 2032-03-07

Abstract

The utility model provides a tower filter press for a low-pressure gas source. The tower filter press is a pneumatic filter press, and the pressure of an air source is less than or equal to 7 kg; the tower type filter press comprises a supercharging device and a filter press host, wherein the supercharging device is provided with a first air inlet used for being connected with the air source; and a high-pressure medium outlet of the supercharging device is connected with the filter pressing host. The tower filter press has low requirement on air sources, and is an air source below 7kg which is commonly used in most factories. And the installation is convenient and quick, no electric wire is needed to be connected, and no motor-driven wireless wire can meet the explosion-proof technological standard. The whole structure of the utility model is adjustable in size, and particularly, the smaller structure is suitable for application occasions of small-sized filter presses and testing machines.

Description

Tower filter press for low-pressure air source

Technical Field

The utility model belongs to the technical field of filter presses, and particularly relates to a tower type filter press for a low-pressure gas source.

Background

The intelligent tower filter press is used as a new device in the field of solid-liquid separation, and is widely applied to the fields of mines, medicines, fine chemical engineering, lithium batteries, photovoltaics and the like. The plate-and-frame filter press has the outstanding characteristics of unique structure, high pressure processing mode, high automation degree, rich process control flow and the like, can realize the effect which cannot be achieved by the original plate-and-frame filter press equipment, and simultaneously avoids the defects of heavy structure, complex installation, long period time, tedious related field, high personnel entrance threshold and the like of the original filter press. Patent CN201620075032.2 discloses a pneumatic plate-and-frame filter press, in which an external air supply station is a special air supply, which has a certain requirement on the air pressure of the air supply, and a pneumatic control system and an electronic and electrical control system are used together to realize the normal operation of the filter press, for example, the blanking conveying still needs to be driven by a motor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tower type filter press for a low-pressure gas source, which does not need to be driven by a motor and realizes single pneumatics of the tower type filter press through a special connecting and moving method.

In order to achieve the purpose of the utility model, the technical scheme of the utility model is as follows:

the utility model provides a tower type filter press for a low-pressure air source, which is a pneumatic type filter press, wherein the pressure of the air source is less than or equal to 7 kg; the tower type filter press comprises a supercharging device and a filter press host, wherein the supercharging device is provided with a first air inlet used for being connected with the air source; and a high-pressure medium outlet of the supercharging device is connected with the filter pressing host machine.

Further, a piston group is arranged on the inner side of the supercharging device; the piston assembly can be pushed by gas source gas entering from the first gas inlet to move relatively along the inner wall of the supercharging device.

Further, the piston assembly comprises a first piston and a second piston, the first piston is connected with the second piston through a piston rod, the area of the second piston is smaller than that of the first piston, and the second piston can move along the inner wall of a pressurizing cylinder arranged in the pressurizing device.

Further, a cavity formed between the first piston and the second piston is balanced with the atmosphere. Furthermore, a limiting block is arranged on the supercharging device and arranged on the stroke of the first piston.

Further, a feeding tank body is connected to a feeding hole of the filter pressing main machine; the feeding tank body is connected with the air source.

Furthermore, the feeding tank body also comprises a feeding cover, and the feeding cover is connected to the tank body of the feeding tank body through a chuck.

Further, the feed inlet of the filter pressing host machine is connected with the feed tank body through a feed pipeline, and the feed pipeline is connected with a sixth valve.

Further, an air tap or the air source is connected to the sixth valve.

Compared with the prior art, the utility model has the advantages and beneficial effects that:

1. the requirement on the air source is low, and most factories have the air source below 7kg and can use the air source after being connected.

The utility model provides a full-air-pressure driving structure and a connection mode, and power mechanisms of all devices are pneumatically executed and can adapt to low-pressure air sources, which is a great innovation of the utility model. The traditional vertical filter press is driven by hydraulic pressure and motor, or uses special air source to assist feeding, and essentially uses the motor as the power source of the filter press. The mode of motor drive consumes energy highly, needs the power to connect when the field usage, and the wiring is complicated, can't realize handing-over operation work of short time.

Moreover, the common motor and the wiring method cannot meet the explosion-proof requirement of a chemical plant. If the pressure filter is suitable for explosion-proof places, the explosion-proof wiring standard is high, the requirement on the motor is also high, and the equipment cost of the pressure filter can be greatly increased. The single pneumatic drive can avoid the problems, and the safety and the use convenience are realized.

2. The air source is a low-pressure air source lower than 7kg, which meets the process requirements of over 90 percent of manufacturers, and a high-pressure air source or a special air source is not needed, so that the safety coefficient is further enhanced. The low-pressure gas is used as a power source and is adjusted and changed to high pressure in a stepless manner through the supercharging device. The problem that a high-pressure air source is not available in most occasions is solved, and meanwhile, the process requirement of high-pressure material treatment of equipment can be met. Meanwhile, according to the process, solid or liquid media such as air, water, hydraulic oil and the like can be used in the high-pressure chamber to realize high-pressure output, so that the high-pressure output device has higher applicability and wide application range.

3. The device is convenient and quick, wires do not need to be connected, the whole quick-assembly design is realized, and the starting application of the device can be quickly realized. And the butt joint between the equipment internal disassembly and the related auxiliary equipment is connected by a quick-opening chuck or a quick joint, so that the equipment has convenience in disassembly, assembly, use, overhaul or maintenance, and can meet the requirement of an assembly experiment in a short time.

4. The tower filter press can be applied to small-sized testing machines and large-sized industrial equipment, and the floor area is 0.0001-300 m²Are applicable. The filter press is integrated, can be integrally matched with a skid-mounted mode, can be used as a testing machine, is reduced, can enter a suitcase, is convenient, flexible and light, and can enter a container by large equipment.

5. The whole equipment design of the utility model can prevent external impurity ions from entering; is particularly suitable for the lithium battery industry, fine chemical industry and other process occasions requiring pure materials.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic view of a structure of a pressurizing means in accordance with an exemplary embodiment;

FIG. 3 is a schematic diagram of a filter press main body according to an exemplary embodiment;

fig. 4 is a schematic diagram of the structure of a feeding tank in the structure of the embodiment.

Reference numbers in the figures: 1. a pressure boosting device; 101. an upper cover; 102. a main body; 103. a seal ring; 104. a first air inlet; 105. a first valve; 106. bending the pipe; 108. a piston assembly; 109. a first piston; 110. a piston rod; 111. a second piston; 112. a second valve; 113. a third valve; 114. a pressurizing cylinder; 115. a high pressure medium outlet; 116. a fourth valve;

2. a feed tank body; 201. a feeding cover; 202. a chuck; 203. a second air inlet; 204. a first discharge port; 205. a fifth valve; 206. a sixth valve; 207. a feed conduit; 208. a liquid level meter; 209. a seventh valve;

3. a filter pressing host machine; 301. a feed inlet; 302. an elastic container; 303. a material cavity; 304. a filter element assembly; 305. a filtrate outlet; 4. and (4) a gas source.

Detailed Description

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate preferred embodiments of the utility model and together with the description serve to explain the utility model without limiting the utility model. The following embodiments better illustrate the present invention. However, the present invention is not limited to the following examples.

Example 1

Referring to fig. 1 to 4, the tower filter press structure for low pressure gas source provided by the present invention is a pneumatic type filter press, and the pressure of the gas source 4 is less than or equal to 7 kg; comprises a supercharging device 1 and a filter pressing host machine 3. As shown in fig. 1, a supercharging device 1 is arranged on the left side of the tower filter press, and stepless change from low-pressure safety pressure to high-pressure process pressure can be realized; introducing a low-pressure gas source 4 into the supercharging device 1, converting high-pressure medium into a filter pressing host 3; the high-pressure medium can be solid or liquid medium such as air, water, hydraulic oil and the like, and can provide driving force for the filter pressing main machine 3 to enable the filter pressing main machine 3 to complete filter pressing. A feed port 301 of the filter pressing host 3 is connected with a feed tank body 2, and the feed tank body 2 can extrude and push materials into the feed tank body 2 by using an air source 4; and to the role of storage.

As shown in FIG. 2, the supercharging device 1 comprises an upper cover 101 and a main body 102 on the top, the upper cover 101 and the main body 102 of the supercharging device 1 are sealed by a sealing ring 103, and a quick-tightening bolt is screwed to provide locking pressure to press the sealing ring 103 for sealing. The top of an upper cover 101 at the top of the supercharging device 1 is connected with a first air inlet 104 and a first valve 105, wherein the first air inlet 104 is a quick connector and is connected with the middle part of the upper cover 101; the gas source 4 can be quickly connected. The top of the upper cover 101 is connected with a first valve 105 near the left side, and the first valve 105 is a pressure relief valve and is connected to the upper cover 101 through an elbow 106; after the gas enters the supercharging device 1, automatic pressure relief can be performed through the first valve 105, equipment and pipelines are protected, and accidents are prevented.

The inner lower part of the pressurizing device 1 is provided with a pressurizing cylinder 114, and the inner diameter of the pressurizing cylinder 114 is smaller than that of the upper half part of the pressurizing device 1. An annular limiting block 107 is fixedly connected to the position, close to the top, inside the pressurizing device 1, and a piston assembly 108 capable of moving up and down along the pressurizing device 1 and the inner wall of the pressurizing cylinder 114 is arranged below the limiting block 107. The inner diameter of the limiting block 107 is smaller than the outer diameter of the piston assembly 108, the limiting block 107 is arranged on the stroke of the piston assembly 108, and when the piston assembly 108 moves upwards, the limiting block 107 can clamp the piston assembly 108, so that the position of the piston assembly 108 is not higher than that of the limiting block 107.

The piston assembly 108 comprises a first piston 109, a piston rod 110 and a second piston 111; a piston rod 110 is arranged below the first piston 109, and a second piston 111 is connected below the piston rod 110; the diameter of the first piston 109 is adapted to the inner diameter of the upper part of the supercharging device 1, and the piston assembly 108 of the first piston 109 can move up and down along the inner wall of the supercharging device 1 by the elastic material of the circumference of the first piston 109 being in close contact with the inner wall of the supercharging device 1. The diameter and area of the second piston 111 are smaller than those of the first piston 109, and the diameter of the pressurizing cylinder 114 can be adapted, and the pressurizing cylinder 114 can provide a guiding effect for the second piston 111 by the elastic material in the circumferential direction of the second piston 111 being in close contact with the inner wall of the pressurizing cylinder 114. Therefore, the second piston 111 can move up and down along the inner wall of the pressurizing cylinder 114 having a small inner diameter. The gas of the gas source 4 enters a chamber formed inside the supercharging device 1 and above the first piston 109 through the gas inlet, and pushes the first piston 109 to move downwards, so as to drive the piston rod 110 to push the second piston 111. The first piston 109 and the second piston 111 divide the interior of the supercharging device into 3 chambers from top to bottom, a low-pressure chamber is formed above the first piston 109, the interior of the chamber between the first piston and the second piston is balanced with the atmosphere, and a high-pressure chamber is formed below the second piston 111; the area difference between the first piston 109 and the second piston 111 can realize the conversion of low pressure to high pressure and the stepless adjustment of 0-16 kg.

The right side of the bottom position of the low-pressure chamber of the supercharging device 1 is provided with a second valve 112 for atmospheric balance, the left side is provided with a third valve 113 for air intake and reverse thrust of the first piston 109, and the third valve 113 is connected with the air source 4. The atmospheric balance and the air intake for boosting the upward movement of the first piston 109 are separately controlled, and the bottom of the high-pressure chamber of the supercharging device 1 is connected with a high-pressure medium outlet 115; the high-pressure medium obtained after pressurization is output through the high-pressure medium outlet 115 and enters the elastic container 302 for providing the pressure filtration pressure through a pipeline, and the elastic container 302 is expanded to realize the pressure filtration. The high-pressure medium outlet 115 is also communicated with a fourth valve 116, and the fourth valve 116 is arranged at the front end of the high-pressure medium outlet 115 and used as a sewage discharge valve. In this embodiment, the first valve 105, the second valve 112, the third valve 113 and the fourth valve 116 are all pneumatic valves, avoiding manual or electric control, to ensure single pneumatic actuation.

As shown in fig. 3, a material cavity 303 is formed in the filter press main body 3, and the material cavity 303 is a sealed cavity formed by a container for containing materials. The upper surface of the elastic container 302 is fixed on a rigid plate at the top in the material cavity 303, and the elastic container 302 expands to realize downward compression. The bottom in material cavity 303 is equipped with filter element group spare 304, and filter element group spare 304 plays filterable effect in the filter-pressing process, and material cavity 303 bottom still is equipped with filtrating export 305, and filtrating export 305 is lower than filter element group spare 304. The material enters the material chamber 303 and is filled to enable the flexible container 302 to contract, the high-pressure medium flows into the flexible container 302 to enable the flexible container 302 to expand, the material is squeezed, and filtrate obtained by filtering of the filter element assembly 304 flows out of a filtrate outlet 305. The right side of the main filter press machine 3 is provided with a feed inlet 301, and materials to be filtered enter the main filter press machine 3 through the feed inlet 301 to be filtered.

The tower filter press also comprises a feeding tank body 2 for temporarily storing materials, wherein the feeding tank body 2 is connected with an air source through a second air inlet 203 and can convey materials to the filter press host machine 3. The specific structure is as shown in fig. 4, a feeding cover 201 is arranged above the feeding tank body 2, the feeding cover 201 is connected to the tank body through a chuck 202, the material can be added into the tank body by opening the chuck 202, and the feeding tank body 2 can be closed by locking the chuck 202. Chuck 202 is the quick-open chuck, and convenient to detach, equipment and use are convenient for overhaul or maintain.

The top of the feeding cover 201 of the feeding tank body 2 is provided with a second air inlet 203, the second air inlet 203 is a quick coupling, and the second air inlet 203 is connected with an air source 4. The bottom of the feeding tank body 2 is connected with a first discharge hole 204, and a fifth valve 205 of the first discharge hole 204 is connected with a feeding hole 301 on the right side of the filter pressing main machine 3 through a feeding pipeline 207. This structure can make gaseous the top get into the feeding jar body 2 and promote the interior material of the feeding jar body 2 and export along first discharge gate 204 downwards, and the material flows through charge-in pipeline 207, feed inlet 301, gets into filter-pressing host computer 3. The method can accurately control the feeding pressure by utilizing the air pressure to realize the stepless regulation of the pressure; and the pressure is quickly started and eliminated, so that the time can be saved.

Be equipped with fifth valve 205 on first discharge gate 204, fifth valve 205 is the discharge valve, can reduce the pipeline jam with unnecessary material evacuation to convenient the maintenance is changed, can ventilate the clearance when blockking up.

The position of the feeding pipeline 207 close to the filter pressing main machine 3 is connected with a sixth valve 206, the sixth valve 206 can be connected with an air nozzle, so that emptying or exhausting is facilitated, the feeding pipeline 207 and the filter pressing main machine 3 can be directly connected with an air source 4 for blowing, emptying or cleaning, and the elastic container 302 can be assisted to restore to the original state for the next circulation.

The right side of the feeding tank body 2 is also provided with a liquid level meter 208, and the liquid level meter 208 is a transparent visual liquid level meter 208, so that the feeding amount can be conveniently observed and controlled in real time. A seventh valve 209 is connected below the liquid level meter 208, and the seventh valve 209 is used for connecting the air source 4 when the liquid level meter 208 is blocked so as to clean and discharge sewage in time.

In this embodiment, the connection method used in the present invention is a conventional pipe connection method unless otherwise specified. The internal disassembly of the structure and the butt joint between the related auxiliary equipment are connected by the quick-opening chuck or the quick joint, so that the quick-opening chuck is convenient to disassemble, assemble, use, overhaul or maintain, and the requirement of an assembly experiment in a short time can be met.

In addition, the first valve 105, the second valve 112, the third valve 113, the fifth valve 205, and the sixth valve 206 in the embodiment are all pneumatic valves having different functions. The pneumatic valve is free from electric drive, and the operation of the device is realized through a single pneumatic mode. The supercharging device 1 of the tower type filter press can convert a low-pressure gas source 4 which is more than 90% of the factory and less than 7kg into the working pressure of the filter press main machine 3, so as to drive the filter press main machine 3 to work. The non-pressurized low-pressure air source 4 can discharge the materials in the feeding tank body 2 into the filter pressing main machine 3, and the feeding and discharging of the filter pressing main machine, the emptying of the feeding pipeline 207, the cleaning of various valves and pipelines and the like are completed. The flow passage components of the tower type filter press are all 304 stainless steel, and the other exposed surfaces are subjected to paint spraying treatment; all exposed surfaces are free of non-magnetic materials such as copper, zinc and the like, so that the non-magnetic materials such as copper, zinc and the like are avoided, and the industrial standard of the lithium battery is met.

In another embodiment of the utility model, the tower filter press can be integrated and can be integrally matched with a skid-mounted mode; the small-sized filter press can be used as a testing machine, the size of the hand can be reduced to enter a suitcase, even the size of the palm is small, the operation is convenient, flexible and light, and large equipment can enter a container. The tower filter press can realize 0.0001m of minimum floor area²The maximum can reach 300m². Therefore, the tower filter press of the utility model can be applied to small-sized testing machines and large-sized industrial equipment.

In another embodiment of the utility model, the tower type filter press is controlled within 20inh, and can be loaded into a 20-inch trunk, so that the portable filter press is provided. The small-sized filter press has the advantage of not limiting the gas source 4, and the existing gas source 4 of most factories can be suitable for use. Different from motor driving, the air source 4 can work normally only by being connected during installation, and the installation can be carried out quickly; the unique single pneumatic drive can meet the explosion-proof standard of a factory. Therefore, the utility model has the technical inspiration of a filter press structure with convenience and safety, provides a reduced tower type filter press structure, has the characteristics of small air consumption, low cost and combined structure, has more economical efficiency on smaller size, and is particularly suitable for application occasions of small-sized filter presses and testing machines.

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. The tower type filter press for the low-pressure gas source is characterized in that the tower type filter press is a pneumatic type filter press, and the pressure of a gas source (4) is less than or equal to 7 kg; the tower type filter press comprises a supercharging device (1) and a filter press host (3), wherein the supercharging device (1) is provided with a first air inlet (104) used for being connected with the air source (4); and a high-pressure medium outlet (115) of the supercharging device (1) is connected with the filter pressing host (3).

2. The tower filter press for a source of low pressure gas according to claim 1, characterized in that inside the pressure boosting device (1) there is a piston assembly (108); the piston assembly (108) can be pushed by gas of the gas source (4) entering from the first gas inlet (104) to move relatively along the inner wall of the supercharging device (1).

3. The tower filter press for a source of low pressure gas according to claim 2, wherein the piston assembly (108) comprises a first piston (109) and a second piston (111), the first piston (109) being connected to the second piston (111) by a piston rod (110), the second piston (111) having a smaller area than the first piston (109), the second piston (111) being movable along an inner wall of a pressure cylinder (114) provided in the pressure intensifier (1).

4. The tower filter press for low pressure gas sources according to claim 1, wherein the feed inlet (301) of the filter press main machine (3) is connected with a feed tank body (2); the feeding tank body (2) is connected with the air source (4).

5. Tower press filter for low pressure gas source according to claim 4, characterised in that the feed tank (2) further comprises a feed cover (201), the feed cover (201) being connected to the body of the feed tank (2) by means of a chuck (202).

6. The tower filter press for low pressure gas source according to claim 4, wherein the feed inlet (301) of the filter press main machine (3) is connected with the feed tank body (2) through a feed pipe (207), and the feed pipe (207) is connected with a sixth valve (206).

7. The tower filter press for a source of low pressure gas according to claim 6, characterised in that the sixth valve (206) is connected to a gas tap or to the gas source (4).