High-dryness tubular ultrahigh-pressure diaphragm filter press

Abstract

The utility model provides a high dryness tubular ultra-high pressure diaphragm filter press, which belongs to the technical field of diaphragm filter pressing, and comprises an oil cylinder, accessories, a shell, a diaphragm, a filter cartridge, a filter tube and a core tube, the oil cylinder is arranged at the top of the shell, the accessories comprise a sealing element, a support frame, a housing and a high pressure pipeline, the diaphragm is arranged on the inner wall of the shell, and the filter tube is arranged on the inner wall of the shell. The filter cartridge is arranged on the surface of the filter tube, the top of the filter tube is fixedly connected with a cylinder rod of the oil cylinder, the core tube is arranged in an inner cavity of the filter tube, the top of the core tube is fixedly connected with the top of the filter tube, a cavity between the shell and the diaphragm is a squeezing cavity, and a cavity between the filter tube and the core tube is a filtrate cavity. According to the utility model, the advantages of the high-dryness tubular ultrahigh-pressure diaphragm filter press in the aspects of material consumption and space occupation can be fully exerted, meanwhile, the problems of the traditional plate-and-frame filter press can be solved, ultrahigh-pressure filter pressing is realized, and a product with higher dryness is obtained.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the diaphragm filter pressing technical field, concretely relates to a high dryness degree tubular ultrahigh pressure diaphragm filter press. BACKGROUND

[0002] In industrial production, solid-liquid separation is a crucial link, and is widely used in many fields such as chemical industry, mining, environmental protection, etc. As a key equipment for realizing solid-liquid separation, the performance of the filter press directly affects the production efficiency, product quality and production cost and many other aspects.

[0003] The main type of filter press on the market at present is plate and frame filter press. According to the arrangement structure, it can be divided into horizontal plate and frame filter press and vertical plate and frame filter press. Their main filter pressing components are plate and frame, and the shape of the plate and frame is a rectangular frame body. The dewatering material is squeezed and dewatered between two frame bodies. Because of the structure of the frame body, the filter press cannot achieve higher pressure. Or if higher pressure is needed, the strength of the filter press needs to be very high, and the amount of steel used is very large.

[0004] Further, the traditional plate and frame filter press has long occupied an important position in the field of solid-liquid separation. It realizes solid-liquid separation through the extrusion action of the plate and frame. However, with the continuous development of industrial technology and the increasing production demand, the traditional plate and frame filter press gradually exposes a series of limitations. First of all, when the same pressure is reached, the steel consumption of the traditional plate and frame filter press is huge. In order to withstand higher pressure, the plate and frame filter press needs to use a large amount of steel to build a solid structure, which not only leads to high manufacturing cost, but also puts forward higher requirements for the factory foundation, increasing the cost of factory construction and maintenance. In contrast, the high dryness degree tubular ultrahigh pressure diaphragm filter press involved in the utility model has a steel consumption of less than 1 / 3 of the traditional plate and frame filter press when the same pressure is reached. The reduction of steel consumption not only means a significant reduction in manufacturing cost, but also makes the adaptability of the factory foundation stronger, enabling stable operation under different factory conditions, reducing many inconveniences caused by the limitation of the factory foundation. SUMMARY

[0005] Based on the problems existing in the prior art, the utility model provides a high dryness degree tubular ultrahigh pressure diaphragm filter press, which not only fully utilizes the advantages of the high dryness degree tubular ultrahigh pressure diaphragm filter press in material consumption and space occupation, but also solves the problems existing in the traditional plate and frame filter press, realizes ultrahigh pressure filtration, and obtains higher dryness degree products.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a high dryness degree tubular ultra-high pressure diaphragm filter, including oil cylinder, accessory, shell, diaphragm, filter cartridge, filter pipe and core pipe, the oil cylinder is arranged at the top of shell, the accessory includes sealing element, support frame, cover and high pressure pipeline, the diaphragm is arranged on the inner wall of shell, the filter cartridge is arranged on the surface of filter pipe, the top of filter pipe is fixedly connected with the cylinder rod of oil cylinder, the core pipe is arranged in the inner chamber of filter pipe, and the top of core pipe is fixedly connected with the top of filter pipe.

[0007] Preferably, the cavity between the shell and the diaphragm is a squeezing cavity, the chamber between the filter pipe and the core pipe is a filtrate cavity, and the chamber between the diaphragm and the filter cartridge is a material cavity. The shell is a high-strength pipe for bearing the maximum squeezing force, and the maximum bearing pressure is up to 13 MPa. The diaphragm is one of rubber products and polyurethane products. The filter cartridge is a cylindrical piece composed of filter cloth.

[0008] Further, the high dryness degree tubular ultra-high pressure diaphragm filter comprises a sensor module, and the sensor module comprises a weighing sensor, a linear displacement sensor and a pressure sensor, wherein the weighing sensor is used for weighing the weight of the equipment and determining whether the material is filled to the brim, the weighing sensor is installed on the shell. The linear displacement sensor is used for measuring the extension length of the oil cylinder and determining the unloading state, and is installed in the oil cylinder. The pressure sensor is used for measuring the squeezing pressure and is installed on the utility system.

[0009] Further, the control system controls the flow of the material. The flow of the material comprises the following steps: 1) controlling the opening of the pump valve for feeding slurry; 2) controlling the action of the hydraulic station for the extension and retraction of the oil cylinder, thereby loading and unloading; 3) controlling the action of the pump valve, thereby feeding water to flush the equipment; and 4) controlling the opening and closing of the gas valve for entering gas to assist in unloading the equipment or discharging the squeezing liquid in the equipment by using air.

[0010] Compared with the prior art, the high dryness degree tubular ultra-high pressure diaphragm filter has the following advantages and positive effects:

[0011] 1. The high dryness degree tubular ultra-high pressure diaphragm filter is a cylindrical high-pressure filter, and the pressure resistance of the circular pipe structure is the highest.

[0012] 2. The material squeezing pressure can be up to 13 MPa.

[0013] 3. The high pressure can realize higher degree of separation of solid phase and liquid phase.

[0014] 4. Theoretical studies show that the finer the particles, the higher the energy of solid-liquid separation. The diaphragm filter press can be used for dewatering of ultra-fine compressible materials.

[0015] 5. The moisture content of the filter cake is much lower than that of the traditional filter press, and the recovery rate of the filtrate is high;

[0016] 6. The filter cake is a surface-dried block solid, which does not need to be cut and broken in subsequent post-processing;

[0017] 7. Each filter press is a module. Actual projects can be made into filter press modules according to the required treatment capacity, according to the floor area, according to the foundation load and other factors. The filter press module is a system composed of multiple filter presses, and a set of utilities is supplied to multiple filter presses to achieve greater treatment capacity. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The structure of a high-drying pipe type ultra-high pressure diaphragm filter press according to the present application is shown in the figure.

[0019] The reference signs in the drawings are explained as follows: 1, oil cylinder; 2, accessory; 3, shell; 4, diaphragm; 5, filter cartridge; 6, filter pipe; 7, core pipe. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described below in conjunction with the drawings and examples. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0022] In the related art, solid-liquid separation is a key link in many fields such as chemical industry, mining, environmental protection, etc. As an important equipment for realizing solid-liquid separation, the performance of the filter press directly affects the production efficiency, product quality and production cost. The traditional plate and frame filter press has played an important role in the field of solid-liquid separation, which realizes separation through the extrusion of the plate and frame. However, with the development of industrial technology and the improvement of production demand, the traditional plate and frame filter press gradually shows a series of limitations. First, in order to withstand higher pressure, the traditional plate and frame filter press needs to use a large amount of steel to build a solid structure, which leads to high manufacturing cost, and puts higher requirements on the factory foundation, increasing the construction and maintenance cost.

[0023] In order to solve the above problems, the applicant designs and develops a new type of filter press: high dryness tube type ultra-high pressure diaphragm filter press. Compared with the plate and frame filter press, the steel consumption of the filter press is less than 1 / 3 when the same pressure is reached (theoretically, the greater the pressure, the lower the water content of the product). The reduction of steel consumption means the reduction of manufacturing cost and the adaptability of the factory foundation. At the same time, due to the difference in structure, the occupied area is much smaller than that of the plate and frame filter press under the condition of the same processing capacity, which may be less than 1 / 2. In comparison, the steel consumption of the high dryness tube type ultra-high pressure diaphragm filter press of the utility model is less than one third of that of the traditional plate and frame filter press under the same pressure. The reduction of steel not only significantly reduces the manufacturing cost, but also enhances the adaptability of the equipment under different factory conditions, and reduces the inconvenience caused by the foundation limitation.

[0024] Secondly, the traditional plate and frame filter press occupies a large area, and its structural design needs a large space to arrange the plate and frame and related components, which is a serious restriction for enterprises with limited space. The high dryness tube type ultra-high pressure diaphragm filter press has a unique structural design, and the occupied area is only half of that of the plate and frame filter press or even less. Smaller occupied area makes the enterprise more flexible in site planning and equipment layout, effectively improves the site utilization rate, and reduces the operating cost.

[0025] In view of the above technical problems, the utility model adopts the following technical scheme: a high dryness tube type ultra-high pressure diaphragm filter press comprises a cylinder 1, an accessory 2, a shell 3, a diaphragm 4, a filter cartridge 5, a filter pipe 6 and a core pipe 7, the cylinder 1 is arranged at the top of the shell 3, the accessory 2 comprises a sealing element, a support frame, a cover and a high-pressure pipeline, the diaphragm 4 is arranged on the inner wall of the shell 3, the filter cartridge 5 is arranged on the surface of the filter pipe 6, the top of the filter pipe 6 is fixedly connected with the cylinder rod of the cylinder 1, the core pipe 7 is arranged in the inner cavity of the filter pipe 6, the top of the core pipe 7 is fixedly connected with the top of the filter pipe 6, the cavity between the shell 3 and the diaphragm 4 is a squeezing cavity, the cavity between the filter pipe 6 and the core pipe 7 is a filtrate cavity, and the cavity between the diaphragm 4 and the filter cartridge 5 is a material cavity.

[0026] The oil cylinder 1 is used for controlling the unloading of filter cake, and the oil cylinder 1 is extended when unloading. When unloading, the oil cylinder 1 is in a recovery state, the accessory 2 includes various seals, support frames, housings, high-pressure pipelines and the like, and is mainly used for realizing functions, actions and safety, the shell 3 is a high-strength pipe used for bearing the maximum pressing force, the maximum bearing pressure is up to 13 MPa, and the diaphragm 4 is an important core part of the equipment. The diaphragm 4 is generally made of rubber or polyurethane, and the material is extruded through the deformation of the diaphragm 4 to realize the dehydration of the material. The filter cartridge 5 is actually a cylindrical part composed of filter cloth, and can discharge liquid through the pores on the filter cartridge 5 and cannot discharge solid to realize solid-liquid separation. According to different material requirements, the filter cartridge 5 selects different materials, different layers and different porosities, the filter pipe 6 is a metal structure, and the surface is covered with water flow channels. The water discharged through the filter cartridge 5 needs to pass through the filter pipe 6 and then enter the filtrate cavity, and the filter pipe 6 mainly plays a supporting role, so that the filter cartridge 5 does not deform under the pressure of the diaphragm 4, and the core pipe 7 is a process part of the equipment. In order to increase the strength of the equipment and reduce the volume of the cavity, the gas is quickly supplemented to reduce the process time.

[0027] Further, the sensor module includes a weighing sensor, a linear displacement sensor and a pressure sensor, wherein the weighing sensor is used for weighing the weight of the equipment to determine whether the material is filled, and the weighing sensor is installed on the shell. The linear displacement sensor is used for measuring the extension length of the oil cylinder to determine the unloading state. It is installed inside the oil cylinder. The pressure sensor is used for measuring the pressing pressure and is installed on the public (common) engineering system; not installed on the equipment body. The control system is mainly used for controlling the flow of the material, including: 1) controlling the opening of the pump valve for feeding the slurry; 2) controlling the hydraulic station action for the oil cylinder extension and retraction, and then controlling the unloading; 3) controlling the pump valve action, and then controlling the water to flush the equipment; 4) controlling the opening and closing of the gas valve for entering the gas to assist the unloading of the equipment, or using the air to discharge the pressing liquid in the equipment. The control system adopts a PLC control system.

[0028] The working principle of the high-dryness tubular ultra-high-pressure diaphragm filter press is as follows:

[0029] 1. The material enters the material cavity;

[0030] 2. The pressing liquid enters the pressing cavity, the diaphragm 4 is deformed, the diaphragm 4 is pressed to the filter cartridge 5, and the pressed material enters the filtrate cavity after passing through the filter cartridge and the filter pipe. Then discharge; In order to ensure the pressing effect, repeated pressing and different pressure pressing can be realized, which is realized by the control system.

[0031] 3. The oil cylinder is actuated, the filter cartridge, the filter pipe and the core pipe move downward, and the mud cake unloading is completed; In order to unload completely, the oil cylinder can be controlled to reciprocate; While unloading, compressed air can be added in the filtrate cavity to assist unloading; After unloading is completed, the oil cylinder is reset;

[0032] 4. Proceed to the next cycle.

[0033] 5. If the equipment needs to be rinsed, then rinse water is introduced into the material chamber.

[0034] In the high-intensity tubular ultra-high pressure diaphragm filter of the patent, the oil cylinder is used to control the discharge of the filter cake, and the oil cylinder is extended when discharging. When not discharging, the oil cylinder is in a recovery state.

[0035] 2. The accessory parts include various seals, supports, casings, high-pressure pipes, etc., which are mainly accessory parts for realizing functions, actions, safety, etc., and will not be described in detail here;

[0036] 3. The shell is a high-strength pipe used to withstand the maximum pressing force, and the maximum allowable bearing pressure is as high as 13 MPa;

[0037] 4. The diaphragm is an important core part of the equipment. The diaphragm is usually made of rubber or polyurethane products. The deformation of the diaphragm extrudes the material to achieve dewatering.

[0038] The filter cartridge is a cylindrical part composed of filter cloth, which can discharge liquid through the pores on the filter cartridge 5 and solid cannot pass through to realize solid-liquid separation. According to different material requirements, different materials, different numbers, different porosities, etc. are selected for the filter cartridge;

[0039] The filter pipe is a metal structure with water channels on the surface. The water discharged through the filter cartridge 5 needs to pass through the filter pipe 6 before entering the filtrate chamber. The filter pipe mainly plays a supporting role, so that the filter cartridge 5 does not deform under the pressure of the diaphragm;

[0040] The core pipe is a process part of the equipment. In order to increase the strength of the equipment and reduce the volume of the cavity, it is convenient for the rapid replenishment of gas to reduce the process time.

[0041] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the technology disclosed herein. This application is intended to cover any variations, uses or adaptations of the application other than those expressly described or rendered obvious in the specification and claims. It is intended that variations of the application included in the true scope of the application are not limited to the specific embodiments disclosed in the specification and claims. It is intended that the true scope of the application is only limited by the following claims. It should be understood that the application is not limited to the precise structures described and shown in the drawings, and that various modifications and changes can be made without departing from the scope of the application. The scope of the application is limited only by the claims appended hereto.

Claims

1. A high dryness tubular ultra-high pressure diaphragm filter press comprising a cylinder (1), an accessory (2), a housing (3), a diaphragm (4), a filter cartridge (5), a filter tube (6) and a core tube (7), characterized in that: The oil cylinder (1) is arranged on the top of the shell (3), the accessory (2) comprises a sealing member, a support frame, a cover and a high-pressure pipeline, the diaphragm (4) is arranged on the inner wall of the shell (3), the filter cartridge (5) is arranged on the surface of the filter pipe (6), the top of the filter pipe (6) is fixedly connected with the cylinder rod of the oil cylinder (1), the core pipe (7) is arranged in the inner cavity of the filter pipe (6), and the top of the core pipe (7) is fixedly connected with the top of the filter pipe (6).

2. A high dryness tube ultra-high pressure diaphragm filter press according to claim 1, characterized in that: The cavity between the shell (3) and the diaphragm (4) is a squeezing cavity, the cavity between the filter pipe (6) and the core pipe (7) is a filtrate cavity, and the cavity between the diaphragm (4) and the filter cartridge (5) is a material cavity.

3. A high dryness tube ultra-high pressure diaphragm filter press according to claim 1, characterized in that: The shell (3) is a high-strength pipe and is used for bearing the maximum squeezing force, and the maximum bearing pressure is up to 13 MPa.

4. A high dryness tube ultra-high pressure diaphragm filter as claimed in claim 1, wherein: The diaphragm (4) is one of rubber products and polyurethane products.

5. A high dryness tube ultra-high pressure diaphragm filter as claimed in claim 1, wherein: The filter cartridge (5) is a cylindrical member composed of filter cloth.

6. A high dryness tube ultra-high pressure diaphragm filter according to claim 1, characterized in that: The high-dryness pipe type ultra-high pressure diaphragm filter press comprises a sensor module, the sensor module comprises a weighing sensor, a linear displacement sensor and a pressure sensor, the weighing sensor is used for weighing the weight of the equipment and determining whether the material is filled full, and the weighing sensor is installed on the shell.

7. A high dryness tube ultra-high pressure diaphragm filter according to claim 6, characterized in that: The linear displacement sensor is used for measuring the extension length of the oil cylinder and determining the unloading state, and the linear displacement sensor is installed in the oil cylinder.

8. A high dryness tube ultra-high pressure diaphragm filter according to claim 6, characterized in that: The pressure sensor is used for measuring the squeezing pressure and is installed on the public engineering system.

9. A high dryness tube ultra-high pressure diaphragm filter according to claim 6, characterized in that: The control system controls the flow of the material.

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