Disc filter with sampling device

Abstract

The utility model belongs to the technical field of disc type filters, and particularly relates to a disc type filter with a sampling device, which comprises a disc type filter and a main shaft arranged on the disc type filter, a mother liquor pipe and other pipelines are arranged in the main shaft, the sampling device is arranged in the main shaft, the sampling device comprises a sampler and a shunt pipe, a shutoff valve is arranged at the joint of the material collecting pipe and the flow dividing pipe, a discharging valve is further arranged at one end of the material collecting pipe, when mother liquor passes through the mother liquor pipe, part of the mother liquor flows into the flow dividing pipe, the flow dividing pipe is connected with the sampling device and extends out of the bottom of the main shaft, and a closing assembly is arranged on the flow dividing pipe. When sampling is needed, the shutoff valve is closed, part of mother liquor is left in the material collecting pipe, the mother liquor can be taken out for detection by opening the discharging valve, and the phenomenon that sampling cannot be conducted due to the fact that negative pressure is generated in the mother liquor pipe is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of disk filters, and particularly relates to a disk filter with a sampling device. Background Technique

[0002] A disk filter is a negative pressure filtration device. The filtrate produced by the disk filter enters the mother liquor tank through the mother liquor pipe, which is collectively called the mother liquor of the seed mother liquor. In production, the index of the mother liquor of the seed mother liquor is related to the control of production costs. Therefore, it is necessary to regularly sample and monitor the mother liquor index. However, in actual production, the mother liquor samples are the comprehensive samples of the filtrates of multiple disk filters. When the index exceeds the control range, we need to analyze and confirm which filtrate exceeds the standard.

[0003] The existing judgment method is to open the sampling valve. However, the inside of the mother liquor pipe is in a negative pressure state. When the normal sampling valve is opened, it will only suck in air and no sample can be taken. Only by observing the situation of the disk filter can we indirectly judge whether the mother liquor index of this unit is high or low. We cannot clearly find out the index of the filtrate of a single disk filter. This process can only be obtained by experienced workers, and the result cannot be directly obtained, and it cannot be guaranteed that each result is correct. It is not convenient to adjust the production data in time. Moreover, there are often two mother liquor pipes in the disk filter. Sampling directly in the mother liquor pipe will affect the flow of other pipes. Content of the Utility Model

[0004] Aiming at the technical problems existing in the background technique, the purpose of the utility model is to provide a disk filter with a sampling device, which can solve the negative pressure situation in the mother liquor pipe and can obtain a suitable mother liquor sample on each disk filter.

[0005] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0006] A disk filter with a sampling device includes a disk filter and a main shaft arranged on the disk filter. A mother liquor pipe and other pipes are arranged inside the main shaft. The sampling device is arranged inside the main shaft. The sampling device includes a sampler and a shunt pipe. The mother liquor pipe extends into the sampler. The shunt pipe is connected to the sampler and extends out from the bottom of the main shaft. A closing assembly is arranged on the shunt pipe.

[0007] Preferably, the sampler is of an annular structure and is hollow inside. A connection hole is arranged on the sampler, and the connection hole penetrates through both ends of the sampler.

[0008] Preferably, there are at least two closing assemblies. One of the closing assemblies is arranged at the end of the shunt pipe. An aggregate pipe is also arranged on the closing assembly, and both ends of the aggregate pipe are connected with the closing assembly.

[0009] Preferably, a branch pipe is provided at one end of the sampler. An opening is provided on the branch pipe. A support is provided at one end of the branch pipe. The support is fixedly connected to the main shaft.

[0010] Preferably, a cavity is provided between the branch pipe, the support and the main shaft. The connecting hole is provided at the position of the cavity.

[0011] Preferably, a locking assembly is further provided on the sampler. The locking assembly includes a lock plate and a slider. One end of the lock plate is arc-shaped. The slider is provided at the lower end of the lock plate.

[0012] Preferably, chutes are provided on both sides of the connecting hole. The chutes are provided at one end away from the branch pipe. A threaded hole I is further provided on the sampler. The threaded hole I is provided below the lock plate. A threaded hole II is provided on the lock plate. The threaded hole II penetrates through the lock plate.

[0013] The utility model has the following advantages and beneficial effects:

[0014] First, in the utility model, a shut-off valve is provided at the connection between the aggregate pipe and the shunt pipe. A discharge valve is further provided at one end of the aggregate pipe. When the mother liquor passes through the mother liquor pipe, part of the mother liquor flows into the shunt pipe. When sampling is required, the shut-off valve is closed, and part of the mother liquor remains in the aggregate pipe. The discharge valve is opened to take out the mother liquor for detection, solving the problem that negative pressure will be generated in the mother liquor pipe, resulting in the inability to sample.

[0015] Second, in the utility model, because negative pressure will be generated in the mother liquor pipe, the mother liquor pipe at the end entering the sampler is directly connected to the sampler, and the mother liquor pipe at the outlet end is fixed through the locking assembly to prevent it from falling off and strengthen the connection.

[0016] Third, in the utility model, the structure is simple, the operation is convenient, the disassembly and assembly are convenient, the sampling is convenient, and the working efficiency is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of a disk filter with a sampling device provided by the utility model;

[0018] Figure 2 is an internal connection schematic diagram of a disk filter with a sampling device provided by the utility model;

[0019] Figure 3 is a structural schematic diagram of a sampler of a disk filter with a sampling device provided by the utility model;

[0020] Figure 4 is a schematic diagram of the chute position of a disk filter with a sampling device provided by the utility model;

[0021] Figure 5Locking plate connection diagram of a disk filter with a sampling device provided by the present utility model;

[0022] Figure 6 Schematic diagram of the cavity position of a disk filter with a sampling device provided by the present utility model;

[0023] Icon: 1 - main shaft, 2 - distributor, 21 - opening, 22 - support, 23 - cavity, 3 - sampler, 31 - connection hole, 32 - chute, 33 - threaded hole I, 34 - locking plate, 35 - threaded hole II, 4 - shunt pipe, 5 - shut-off valve, 6 - collecting pipe, 7 - discharging valve. Detailed implementation manners

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0025] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment

[0027] As Figure 1-6 shown, a disk filter with a sampling device includes a disk filter and a main shaft 1 provided on the disk filter. A mother liquor pipe and other pipes are provided inside the main shaft 1. The sampling device is provided inside the main shaft 1. The sampling device includes a sampler 3 and a shunt pipe 4. The mother liquor pipe extends into the sampler 3. The shunt pipe 4 is connected to the sampler 3 and extends out from the bottom of the main shaft 1. A closing assembly is provided on the shunt pipe 4. The closing assembly includes a shut-off valve 5 and a discharging valve 7.

[0028] As Figure 1-5 shown, the sampler 3 is of an annular structure and is hollow inside. A connection hole 31 is provided on the sampler 3. The connection hole 31 penetrates through both ends of the sampler 3. The outer wall of the sampler 3 and the inner wall of the main shaft 1 are fixedly provided. The connection holes 31 are symmetrically arranged on the sampler 3, and just two mother liquor pipes are connected into the sampler 3 through the connection holes 31. The shunt pipe 4 is arranged at the bottom of the sampler 3 and is simultaneously connected to the inside of the sampler 3. The mother liquor flowing in the sampler 3 will enter the shunt pipe 4.

[0029] As Figure 1-6As shown, the shut-off valve 5 is arranged at the end of the shunt pipe 4, and the other end of the shut-off valve 5 is connected to the collecting pipe 6, and the collecting pipe 6 is also provided with a discharge valve 7. When the shut-off valve 5 is closed, the mother liquid in the shunt pipe 4 is left in the collecting pipe 6, thus solving the problem that the mother liquid pipe will generate negative pressure and thus the sample cannot be taken out. The mother liquid in the collecting pipe 6 can be taken out for testing by opening the discharge valve 7. The diameter of the collecting pipe 6 is smaller than that of the shunt pipe 4, and the mother liquid stored in the collecting pipe 6 is suitable for the measurement of sampling and testing, so as to avoid excessive mother liquid being wasted.

[0030] If Figure 1 、 2 As shown in Figure 6, a manifold 2 is provided at one end of the sampler 3, and an opening 21 is provided on the manifold 2. A support 22 is provided at one end of the manifold 2, and the support 22 is fixedly connected to the main shaft 1. The manifold 2 is supported inside the main shaft 1 by the support 22. A cavity 23 is provided between the manifold 2, the support 22 and the main shaft 1. A connecting hole 31 is provided at the position of the cavity 23. The remaining pipes are all placed in the opening 21. Two mother liquid pipes pass through the connecting hole 31 and pass out from the other end to reconnect with the remaining pipes. The mother liquid pipe and the remaining pipes are separated at a distance and then reunited. This will not have a significant impact on the circulation of the entire pipe, while satisfying the sampling of the mother liquid pipe.

[0031] If Figure 1-6 As shown, the sampler 3 is also provided with a locking assembly, which is arranged at the position of the connecting hole 31. The locking assembly includes a locking plate 34, one end of which is arc-shaped, and a slider is arranged at the lower end of the locking plate 34. Slide grooves 32 are arranged on both sides of the connecting hole 31, and the locking plate 34 slides in the slide grooves 32. The sampler 3 is also provided with a threaded hole Ⅰ33, which is arranged below the locking plate 34. The locking plate 34 is provided with a threaded hole Ⅱ35, which penetrates the locking plate 34, and the slide groove 32 is arranged at the end away from the manifold 2. Because there is negative pressure in the mother liquid pipe, the mother liquid pipe at the outlet end is subjected to reverse thrust and is easy to slide out of the connecting hole 31. When the threaded hole Ⅰ33 and the threaded hole Ⅱ35 are aligned, the bolt is screwed in. At this time, the locking plate 34 moves toward the center of the connecting hole 31 and clamps the mother liquid pipe to stabilize it in the connecting hole 31.

[0032] Working principle: the mother liquid pipe is cut off, and the remaining pipes are placed on the pipe divider 2 and passed through the opening 21. The mother liquid pipe at one end extends into the cavity 23 and is connected to the connecting hole 31. The mother liquid pipe at the other end extends into the connecting hole 31 provided with one end of the locking assembly. When the disc filter is working normally, the shut-off valve 5 is opened and the discharge valve 7 is closed, and the mother liquid will gather in the collecting pipe 6. When sampling and testing are required, the shut-off valve 5 is closed and the discharge valve 7 is opened to discharge the mother liquid for testing.

[0033] ​​The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A disc filter with a sampling device, comprising a disc filter and a main shaft arranged on the disc filter, wherein a mother liquid pipe and other pipes are arranged in the main shaft, characterized in that: The sampling device is arranged in the main shaft, and the sampling device includes a sampler and a shunt tube. The sampler is an annular structure and is hollow inside. A connecting hole is arranged on the sampler, and the connecting hole passes through both ends of the sampler. The mother liquid tube extends into the connecting hole in the sampler. The shunt tube is connected to the sampler and extends out from the bottom of the main shaft. A closing component is arranged on the shunt tube.

2. A disc filter with a sampling device according to claim 1, characterized in that: There are at least two closing components, one of which is arranged at the end of the shunt pipe, and a collecting pipe is also arranged on the closing component, and both ends of the collecting pipe are connected with the closing components.

3. A disc filter with a sampling device according to claim 2, characterized in that: A manifold is arranged at one end of the sampler, an opening is arranged on the manifold, a support is arranged at one end of the manifold, and the support is fixedly connected to the main shaft.

4. A disc filter with a sampling device according to claim 3, characterized in that: A cavity is arranged between the manifold, the support and the main shaft, and the connecting hole is arranged at the position of the cavity.

5. The disc filter with a sampling device according to claim 4, characterized in that: The sampler is also provided with a locking assembly, which includes a locking plate and a sliding block. One end of the locking plate is arc-shaped, and the sliding block is arranged at the lower end of the locking plate.

6. The disc filter with a sampling device according to claim 5, characterized in that: Slide grooves are arranged on both sides of the connecting hole, and the slide grooves are arranged at an end away from the distributor. The sampler is also provided with a threaded hole I, and the threaded hole I is arranged below the locking plate. The locking plate is provided with a threaded hole II, and the threaded hole II passes through the locking plate.

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