Filter cloth detection device of filter press

Abstract

The utility model relates to a filter press filter cloth detection device, which comprises a filter press body, a filter cloth detection device, a filter cloth detection device and a detection device, wherein the filter press body is provided with a feeding pipe and a discharging pipe; the two pressure measuring structures comprise mounting pipes, and the mounting pipes are connected with the feeding pipe or the discharging pipe; a plurality of connecting structures are arranged on the connecting piece, each connecting structure comprises a plurality of telescopic blocks, and the telescopic blocks are connected to the connecting piece in a sliding mode; the two pressure transmitters are installed on the feeding pipe and the discharging pipe correspondingly and detect the pressure intensity of fluid in the feeding pipe and the pressure intensity of fluid in the discharging pipe correspondingly, due to the fact that the fluid will pass through the filter cloth, a difference value exists between the pressure intensity of the feeding pipe and the pressure intensity of the discharging pipe, and therefore the pressure intensity of the fluid in the feeding pipe and the pressure intensity of the discharging pipe can be detected. The larger the sludge impurities adhered to the filter cloth are, the larger the difference value is, and therefore the amount of the sludge impurities can be known by observing the pressure difference value of the feeding pipe and the discharging pipe.

Description

Technical Field

[0001] This application relates to the technical field of filter presses, and particularly to a filter cloth detection device for a filter press. Background Art

[0002] A filter press is a device for solid-liquid separation, mainly including a filter press body, a feed pipe, and a discharge pipe. Both the feed pipe and the discharge pipe are connected to the filter press body. The main component of the filter press body is a filter cloth. The feed pipe sends fluid into the filter press body. The fluid passes through the filter cloth, flows out of the filter press body, and enters the discharge pipe.

[0003] After the fluid passes through the filter cloth, the sludge impurity particles in the fluid will adhere to the filter cloth. After the filter press is used for a long time, a large amount of sludge impurity particles will adhere to the filter cloth. These sludge impurity particles will block the capillary pores of the filter cloth, resulting in a slower water permeability of the filter cloth and a reduced filtration efficiency. Since the amount of adhered sludge impurities on the filter cloth cannot be observed inside the filter press body, the filtration efficiency cannot be guaranteed in real time. Summary of the Invention

[0004] Embodiments of this application provide a filter cloth detection device for a filter press to solve the problem in the related art that the amount of adhered sludge impurities on the filter cloth cannot be observed in real time.

[0005] In a first aspect, a filter cloth detection device for a filter press is provided, which includes:

[0006] A filter press body, on which a feed pipe and a discharge pipe are provided;

[0007] Two pressure measurement structures, and the pressure measurement structure includes:

[0008] - An installation pipe, which is connected to the feed pipe or the discharge pipe;

[0009] - A connecting member, on which several connecting structures are provided. The connecting structure includes several telescopic blocks. The telescopic blocks are slidably connected to the connecting member and can extend out of the connecting member. When several telescopic blocks extend out, the connecting member is fixed to the installation pipe;

[0010] - A pressure transmitter, which is threadedly connected to the connecting member.

[0011] In some embodiments, the connecting structure further includes a pressing block;

[0012] The pressing block is slidably connected to the connecting member. The sliding direction of the pressing block is perpendicular to the sliding direction of the telescopic block. The size of the cross-section of the telescopic block gradually increases along its extending direction, and the pressing block is in close contact with the telescopic block.

[0013] In some embodiments, the connecting structure further includes several first springs;

[0014] The first spring is respectively connected to the pressing block and the connecting member.

[0015] In some embodiments, a synchronizing ring is provided on several pressing blocks of the same connecting member, and the synchronizing ring is connected to the pressing block.

[0016] In some embodiments, the connecting structure further includes several second springs;

[0017] The several second springs correspond to several telescopic blocks one by one, and the second springs are respectively connected to the telescopic blocks and the connecting member.

[0018] In some embodiments, several flange holes are provided on the contact end of the installation pipe and the connecting member. The connecting member extends towards the several flange holes and passes through the flange holes to form several cylinders. The several cylinders correspond to the several connecting structures one by one, and the telescopic blocks are arranged on the cylinders.

[0019] The embodiment of the present application provides a filter cloth detection device for a filter press. Since two pressure transmitters are respectively installed on the feed pipe and the discharge pipe in the present application to respectively detect the pressure of the fluid in the feed pipe and the pressure of the fluid in the discharge pipe, and since the fluid will pass through the filter cloth, there is a pressure difference between the pressure of the feed pipe and the pressure of the discharge pipe. The greater the sludge impurities adhered to the filter cloth, the greater the difference. Therefore, the present application knows the amount of sludge impurities by observing the pressure difference between the feed pipe and the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram provided by the embodiment of the present application;

[0022] Figure 2 It is a schematic structural diagram of the pressure measuring structure provided by the embodiment of the present application;

[0023] Figure 3 It is a schematic structural diagram of the flange hole provided by the embodiment of the present application;

[0024] Figure 4 It is a schematic structural diagram of the first spring provided by the embodiment of the present application;

[0025] Figure 5 For Figure 4 the enlarged view of the structure at A in

[0026] Figure 6 It is a schematic structural diagram of the second spring provided by the embodiment of the present application;

[0027] Figure 7 For Figure 6 the enlarged view of the structure at position B in

[0028] In the figure: 1. Filter press body; 2. Feed pipe; 3. Discharge pipe; 4. Pressure measuring structure; 41. Installation pipe; 42. Connector; 43. Pressure transmitter; 44. Synchronous ring; 5. Connection structure; 51. Expansion block; 52. Pressing block; 53. First spring; 54. Second spring; 6. Flange hole. Specific implementation mode

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0030] The embodiments of the present application provide a filter cloth detection device for a filter press, which can solve the problem in the related art that it is impossible to observe in real time the amount of sludge impurities adhering to the filter cloth.

[0031] Please refer to Figures 1 to 7 , a filter cloth detection device for a filter press, which includes:

[0032] The filter press body 1 is provided with a feed pipe 2 and a discharge pipe 3 thereon;

[0033] Two pressure measuring structures 4, and the pressure measuring structure 4 includes:

[0034] - The installation pipe 41 is connected to the feed pipe 2 or the discharge pipe 3;

[0035] - The connector 42 is provided with a plurality of connection structures 5, and the connection structure 5 includes a plurality of expansion blocks 51. The expansion blocks 51 are slidably connected to the connector 42, and the expansion blocks 51 can extend out of the connector 42. When the plurality of expansion blocks 51 extend out, the connector 42 is fixed to the installation pipe 41;

[0036] - The pressure transmitter 43 is threadedly connected to the connector 42;

[0037] A plurality of flange holes 6 are provided at the contact end of the installation pipe 41 and the connector 42. The connector 42 extends towards the plurality of flange holes 6 and passes through the flange holes 6 to form a plurality of cylinders. The plurality of cylinders correspond to the plurality of connection structures 5 one by one, and the expansion blocks 51 are arranged on the cylinders;

[0038] In the prior art, fluid enters the filter press body 1 from the feed pipe 2, passes through the filter cloth, and then enters the discharge pipe 3 from the filter press body 1. When the fluid passes through the filter cloth, the pressure of the fluid is affected by the resistance of the filter cloth and will decrease, that is, the pressure of the fluid in the feed pipe 2 is higher than that of the fluid in the discharge pipe 3. Therefore, there is a pressure difference between the two pressures;

[0039] In this embodiment, two pressure transmitters 43 are respectively installed on the feed pipe 2 and the discharge pipe 3. The pressure transmitter 43 is a prior art, so its detection principle and operation principle will not be elaborated here. The two pressure transmitters 43 will respectively detect the pressures of the fluids in the feed pipe 2 and the discharge pipe 3. The more sludge impurities adhere to the filter cloth, the greater the pressure difference between the fluids in the feed pipe 2 and the discharge pipe 3. That is, when the pressure difference reaches a certain level, it means that too much sludge impurities adhere to the filter cloth and the filter cloth needs to be cleaned or replaced;

[0040] In the prior art, the pressure transmitter 43 is usually fixed to a special pipe by threads. The two ends of this pipe are fixed to the feed pipe 2 or the discharge pipe 3 by flanges. The installation method of the prior art requires the manufacturer to manufacture a special pipe that can be flange-connected and thread-connected at the same time;

[0041] Therefore, in this application, a connecting piece 42 and a connecting structure 5 are designed. The pressure transmitter 43 is installed on the connecting piece 42 by threads. The connecting piece 42 is fixed to the installation pipe 41 through the connecting structure 5. The installation pipe 41 is a common T-shaped pipe. In this application, the installation pipe 41 is a prior art standard pipe. Therefore, the manufacturer only needs to manufacture the connecting piece 42 and the connecting structure 5. Compared with manufacturing a larger special pipe, manufacturing the smaller connecting piece 42 and the connecting structure 5 undoubtedly has a lower production cost and higher profit for the manufacturer;

[0042] In this application, the connecting piece 42 is an annular structure with a T-shaped longitudinal section. Each connecting piece 42 is provided with a plurality of cylinders. The cylinders are hollow structures. Each cylinder is provided with a plurality of telescopic blocks 51. On the surface of the telescopic block 51 facing the cylinder, corresponding chutes are provided. On the side wall of the cylinder, there are sliders. The sliders are slidably connected to the chutes. It should be noted that the number of sliders and chutes corresponds one by one. And in order to ensure that the telescopic block 51 slides out smoothly without tilting, it is best to set the slider and the chute on the opposite sides of the telescopic block 51 respectively. The telescopic block 51 is slidably connected to the side wall of the cylinder. In actual use, the connecting piece 42 is closely attached to the installation pipe 41. The cylinder passes through the flange hole 6, and the telescopic block 51 also passes through the flange hole 6. At this time, the telescopic block 51 is extended from the cylinder, and the telescopic block 51 is closely attached to the installation pipe 41. The telescopic block 51 fixes the connecting piece 42 to the installation pipe 41;

[0043] In a preferred embodiment, the number of cylinders and the number of telescopic blocks 51 can be one or more. However, when multiple cylinders are distributed around the fitting surface of the connecting member 42 and the mounting pipe 41, it will undoubtedly make the connection between the connecting member 42 and the mounting pipe 41 closer. Multiple telescopic blocks 51 are arranged around the side wall of one cylinder, so that the multiple telescopic blocks 51 on this cylinder can share the pressure to be borne, and the service life of each telescopic block 51 can be improved.

[0044] The connection structure 5 further includes a pressing block 52;

[0045] The pressing block 52 is slidably connected to the connecting member 42. The sliding direction of the pressing block 52 is perpendicular to the sliding direction of the telescopic block 51. The size of the cross-section of the telescopic block 51 gradually increases along its extending direction, and the pressing block 52 is in close contact with the telescopic block 51;

[0046] A synchronous ring 44 is arranged on several pressing blocks 52 of the same connecting member 42, and the synchronous ring 44 is connected to the pressing block 52;

[0047] In the present application, the position and number of the connection structure 5 correspond to the position and number of the cylinders. Multiple pressing grooves are formed on the connecting member 42 according to the number and position of the connection structure 5. The pressing block 52 is slidably connected in the pressing groove. When the pressing block 52 presses the telescopic block 51 downward, the telescopic block 51 extends out of the cylinder, and multiple telescopic blocks 51 on one cylinder are controlled to extend out of the cylinder by one pressing block 52;

[0048] The synchronous ring 44 is arranged on multiple pressing blocks 52, so that controlling the synchronous ring 44 can control the movement of multiple pressing blocks 52, thereby realizing the control of all telescopic blocks 51 by the synchronous ring 44, and further realizing the fixation of the connecting member 42 and the mounting pipe 41 by the synchronous ring 44. The fixation method of the connecting member 42 and the mounting pipe 41 is further simplified by the pressing block 52 and the synchronous ring 44.

[0049] The connection structure 5 further includes several first springs 53;

[0050] The first springs 53 are respectively connected to the pressing block 52 and the connecting member 42;

[0051] The connection structure 5 further includes several second springs 54;

[0052] Several second springs 54 correspond to several telescopic blocks 51 one by one, and the second springs 54 are respectively connected to the telescopic blocks 51 and the connecting member 42;

[0053] The number of the first springs 53 is the same as and corresponds to the number of the pressing blocks 52. The first springs 53 are arranged in the pressing grooves. One end of the first spring 53 abuts against the inner wall of the pressing groove, and the other end of the first spring 53 abuts against the pressing block 52. The first spring 53 continuously provides a force to press the telescopic block 51 for the pressing block 52, so that the pressing block 52 can press the telescopic block 51 to extend out of the cylinder;

[0054] The number of the second springs 54 is the same as and corresponds one by one to the number of the sliders of the telescopic block 51. The second springs 54 are arranged in the chute. One end of each second spring 54 abuts against the inner wall of the chute, and the other end abuts against the slider. The second springs 54 continuously provide a force for the telescopic block 51 to contract into the cylinder, so that the telescopic block 51 and the pressing block 52 are always kept in close contact. And when the telescopic block 51 is not subjected to the force of the second springs 54, the telescopic block 51 will contract into the cylinder;

[0055] The elastic force of the first spring 53 is greater than that of the second spring 54. When the connecting structure 5 is not interfered by external forces, the first spring 53 will drive the pressing block 52 to squeeze the telescopic block 51, and the telescopic block 51 extends out of the cylinder, that is, the telescopic block 51 will always be in the state of extending out of the cylinder. In this state, the cylinder cannot pass through the flange hole. Therefore, it is necessary to pull the pressing block 52 through the synchronous ring 44, so that the pressing block 52 squeezes the first spring 53. In this process, the second spring 54 will drive the telescopic block 51 to contract into the cylinder. When the telescopic block 51 is completely contracted into the cylinder, the cylinder can pass through the flange hole 6. After the cylinder passes through the flange hole 6, the control of the synchronous ring 44 is abandoned. At this time, the first spring 53 will pop the telescopic block 51 out of the cylinder, so as to fix the connecting piece 42 and the installation pipe 51. In this way, when fixing the connecting piece 42, it is only necessary to first control the telescopic block 51 to contract into the cylinder through the synchronous ring 44, and after the cylinder passes through the flange hole 6, loosen the synchronous ring 44 to complete the installation, which greatly improves the efficiency of fixing the connecting piece 42.

[0056] The working principle of the present application is as follows:

[0057] When the present application is installed, first, the two installation pipes 41 are respectively fixedly installed on the feeding pipe 2 and the discharging pipe 3 through flanges. Each installation pipe 41 corresponds to a connecting piece 42. When the connecting piece 42 is installed on the installation pipe 41, first, the pressing block 52 is controlled to be pulled up through the synchronous ring 44. In this process, the telescopic block 51 will be affected by the second spring 54. As the pressing block 52 is pulled up, the telescopic block 51 gradually contracts into the hollow cylinder. During the contraction of the telescopic block 51, the pressing block 52 will squeeze the first spring 53. When the telescopic block 51 is completely contracted into the cylinder, the connecting piece 42 is closely attached to the installation pipe 41. At the same time, the cylinder passes through the flange hole 6 on the installation pipe 41. Then, the synchronous ring 44 is no longer controlled. At this time, the first spring 53 drives the pressing block 52 to squeeze the telescopic block 51, and the size of the cross-section of the telescopic block 51 gradually becomes larger along its extending direction. Since the elastic force of the first spring 53 is greater than that of the second spring 54, the pressing block 52 will squeeze the telescopic block 51 to extend out of the cylinder, and the telescopic block 51 is closely attached to the installation pipe 41, fixing the connecting piece 42 and the installation pipe 41. Finally, the pressure transmitter 43 is directly installed on the connecting piece 42 through threads;

[0058] When this application is in use, the fluid passes through the filter press body 1 from the feed pipe 2 and then flows out from the discharge pipe 3. Therefore, it is only necessary to directly observe the difference in the values detected by the pressure transmitters 43 on the feed pipe 2 and the discharge pipe 3. If the pressure difference between the feed pipe 2 and the discharge pipe 3 is detected to exceed a certain range, then the filter cloth needs to be replaced or cleaned.

[0059] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0061] The above description is only the specific implementation manners of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A filter cloth detection device for a filter press, characterized in that: include: A filter press body (1), wherein the filter press body (1) is provided with an inlet pipe (2) and an outlet pipe (3); Two pressure measuring structures (4), the pressure measuring structures (4) comprising: - a mounting pipe (41), the mounting pipe (41) being connected to the feed pipe (2) or the discharge pipe (3); - a connecting member (42), wherein the connecting member (42) is provided with a plurality of connecting structures (5), wherein the connecting structures (5) include a plurality of telescopic blocks (51), wherein the telescopic blocks (51) are slidably connected to the connecting member (42), and the telescopic blocks (51) can extend from the connecting member (42), and when the plurality of telescopic blocks (51) are extended, the connecting member (42) is fixed to the mounting tube (41); - A pressure transmitter (43), the pressure transmitter (43) being threadedly connected to the connecting piece (42).

2. The filter cloth detection device for a filter press according to claim 1, characterized in that: The connection structure (5) further comprises a pressing block (52); The pressing block (52) is slidably connected to the connecting member (42); the sliding direction of the pressing block (52) is perpendicular to the sliding direction of the telescopic block (51); the size of the cross-section of the telescopic block (51) gradually increases along its extension direction; and the pressing block (52) is tightly attached to the telescopic block (51).

3. The filter cloth detection device for a filter press according to claim 2, characterized in that: The connecting structure (5) further comprises a plurality of first springs (53); The first spring (53) is respectively connected to the pressing block (52) and the connecting member (42).

4. The filter cloth detection device for a filter press according to claim 2, characterized in that: A synchronization ring (44) is provided on a plurality of the pressing blocks (52) of the same connecting member (42), and the synchronization ring (44) is connected to the pressing block (52).

5. The filter cloth detection device for a filter press according to claim 1, characterized in that: The connecting structure (5) further comprises a plurality of second springs (54); The plurality of second springs (54) correspond one-to-one to the plurality of telescopic blocks (51), and the second springs (54) are respectively connected to the telescopic blocks (51) and the connecting member (42).

6. The filter cloth detection device for a filter press according to claim 1, characterized in that: A plurality of flange holes (6) are provided on the contact end between the mounting tube (41) and the connecting member (42); the connecting member (42) extends toward the plurality of flange holes (6) and passes through the flange holes (6) to form a plurality of cylinders; the plurality of cylinders correspond to the plurality of connecting structures (5) one by one; and the telescopic block (51) is arranged on the cylinder.

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