Front filtering device of muddy flow detector

Abstract

The utility model discloses a front filtering device of a muddy flow detector, which comprises a front filtering body, two filtering cavities which are oppositely arranged and mutually independent are arranged on the front filtering body, the lower end of the front filtering body is connected with a liquid inlet connector communicated with the filtering cavities, one side of the front filtering body is provided with a liquid outlet connector communicated with the filtering cavities, and the other side of the front filtering body is provided with a liquid outlet connector communicated with the filtering cavities. Liquid flows through the filtering cavity through the liquid inlet connector and then flows out of the liquid outlet connector, the cross section of the end, facing the liquid inlet connector, of the filtering cavity is in a cone shape shrinking towards the liquid inlet connector, a filtering structure is arranged in the filtering cavity, and a back flushing device is connected to the liquid outlet connector. The front filtering device has the beneficial effects that the back-flushing structure is matched with the conical filtering cavity, so that the interior of the front filtering device can be cleaned under the condition that the machine is not stopped, and the detection efficiency of equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of turbidity detectors, in particular to a front filtering device of a turbidity detector. Background Art

[0002] In the nickel electrolysis process, the purity of the cathode liquid directly affects the quality of the electrolytic nickel product. During the production process, the anode liquid containing copper, cobalt, iron, etc. undergoes a purification process to remove impurity elements and supplement nickel ions to become the cathode liquid. During the purification process, if the filter fails or the filter membrane ruptures, these impurities will enter the system and form turbidity. The turbid liquid enters the electrolytic cell, which will reduce the purity of the electrolytic nickel and affect the appearance of the electrolytic nickel. Therefore, the front end of the existing turbidity detector will be equipped with a pre-filter device to filter the liquid entering the turbidity detector in advance, but the existing pre-filter device directly filters through the filter screen, and the filter screen will continue to filter after being installed in the turbidity detector. It is difficult to disassemble and affects production efficiency during disassembly. Therefore, a large amount of impurities are easily accumulated on the surface of the filter screen. If the filter screen is cleaned repeatedly for a long time, the filtering effect of the filter screen will be greatly reduced, and even the filter screen will be blocked. It is necessary to improve this. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to address the deficiencies of the above-mentioned prior art.

[0004] Provided is a pre-filtering device of a turbidity detector capable of filtering electrolyte and cleaning the filtering device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a front filter device of a turbidity detector, including a front filter body, characterized in that: two filter chambers set opposite to each other and independent of each other are provided on the front filter body, the lower end of the front filter body is connected to a liquid inlet connector arranged in communication with the filter chamber, and a liquid outlet connector arranged in communication with the filter chamber is provided on one side of the front filter body. The liquid flows through the filter chamber through the liquid inlet connector and then flows out from the liquid outlet connector. The cross-section of one end of the filter chamber facing the liquid inlet connector is conical and shrinks toward the liquid inlet connector. A filtering structure is provided in the filter chamber, and a backflushing device is connected to the liquid outlet connector.

[0006] The filter element is connected to the filter housing through a filter element, and the filter element is connected to the filter housing through a filter element.

[0007] The front filter device of the above-mentioned turbidity detector can be further configured as follows: the filter structure includes a filter screen, the front filter body is provided with a connecting cavity connected to the filter body above the filter cavity, the connecting cavity is connected to a detachable filter body upper cover, an elastic structure is provided between the filter body upper cover and the filter screen, one end of the elastic structure is against the filter body upper cover and the other end is against the filter screen.

[0008] Adopting the above-mentioned technical solution, this setting has an elastic structure at one end of the filter away from the liquid inlet connector. When liquid passes through, the filter will be lifted up by one end, and when liquid does not pass through, the filter will fall down again under the action of the elastic structure. At the same time, the mixed crystals attached to the filter will fall out of the filter cavity when the filter vibrates, preventing the filter cavity from being blocked.

[0009] The front filter device of the above-mentioned turbidity detector can be further configured as follows: an internal thread is provided inside the connecting cavity, and the filter body upper cover is connected to the internal thread of the connecting cavity through an external thread.

[0010] By adopting the above technical solution, the filter cover is connected to the connecting cavity through threads, which is not only simple to connect, but also easy to disassemble the filter cover to repair and replace the internal filter and other devices during subsequent shutdown maintenance.

[0011] The front filter device of the above-mentioned muddy water detector can be further configured as follows: a "straight-shaped" handle is provided at the other end of the filter body upper cover opposite to the connecting cavity.

[0012] By adopting the above technical solution, a straight-line handle is provided at the end of the filter cover away from the connecting cavity, so as to facilitate the installation and removal of the filter cover.

[0013] The front filter device of the above-mentioned turbidity detector can be further configured as: the filtering structure includes a first filter screen and a second filter screen arranged at intervals, and the first filter screen and the second filter screen are connected by fasteners. After the fasteners connect the first filter screen and the second filter screen, they extend to the upper cover of the filter body and are installed with a handle. The upper cover of the filter body facing the filter cavity is provided with a ring body extending toward the filter cavity and abutting against the filter cavity. The handle is located in the middle of the ring body, and a plurality of flow holes are opened circumferentially on the ring body, and the flow holes are connected to the liquid outlet connector.

[0014] By adopting the above technical solution, a cavity is formed inside the ring body, and a certain gap is left between the outer wall of the ring body and the inner wall of the filter chamber for storing water. Both can store a certain amount of liquid. When the liquid level in these two spaces reaches a certain height, it is discharged into the filter chamber through the flow hole. This can ensure that the sampling device in the external turbidity detector will not directly drain the water in the entire filter chamber during the extraction work, causing internal air pressure difference and affecting subsequent work.

[0015] The front filter device of the above-mentioned turbidity detector can be further configured as follows: the backflushing device is a backflushing tube connected to the liquid outlet connector.

[0016] By adopting the above technical solution, when large-scale turbidity occurs, water is directly poured into the filter chamber along the liquid outlet connector through the backflush pipe, and the turbid liquid is flushed back into the external pipe. During backflush, not only the filter structure can be cleaned, but also a blockage prevention function is played. Although the backflush pipe and the liquid outlet pipe are both connected to the liquid outlet connector, they are not the same pipe and can be connected by a tee pipe.

[0017] The beneficial effects of the utility model are as follows: the backflushing structure is coordinated with the conical filter cavity so that the interior of the front filter device can be cleaned without stopping the machine, thereby ensuring the detection efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the top view of the structure of an embodiment of the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the AA part;

[0021] Figure 4 This is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of an enlarged structure of the elastic structure in an embodiment of the present utility model; DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 5 As shown: A front filter device of a turbidity detector includes a front filter body 1, which has two relatively independent filter chambers 11 arranged on the front filter body 1. The lower end of the front filter body 1 is connected to a liquid inlet connector 2 arranged in communication with the filter chamber 11, and one side of the front filter body 1 is provided with a liquid outlet connector 3 in communication with the filter chamber 2. The liquid flows through the filter chamber 11 through the liquid inlet connector 2 and then flows out from the liquid outlet connector 3. The cross-section of one end of the filter chamber 11 facing the liquid inlet connector 2 is conical and shrinks toward the liquid inlet connector 2. A filtering structure 4 is provided in the filter chamber 11, and a backflushing device is connected to the liquid outlet connector 3.

[0024] The filter element of the present invention is to be connected with the filter element of the present invention, and the filter element of the present invention is to be connected with the filter element of the present invention.

[0025] The filter structure 4 includes a filter screen 41. The front filter body 1 is provided with a connecting cavity 12 above the filter cavity 11 and connected to the filter body 1. The connecting cavity 12 is connected to a detachable filter body cover 5. An elastic structure 6 is provided between the filter body cover 5 and the filter screen 41. One end of the elastic structure 6 abuts against the filter body cover 5 and the other end abuts against the filter screen 41.

[0026] In this arrangement, the end of the filter screen away from the liquid inlet connector abuts against the elastic structure. When liquid passes through, the filter screen will be lifted up by one end. When liquid does not pass through, the filter screen will fall down again under the action of the elastic structure. As the filter screen falls, the runaway crystals attached to the filter screen will fall out of the filter cavity when the filter screen vibrates, preventing the filter cavity from being blocked.

[0027] The connection cavity 12 is provided with an internal thread 121, and the filter body cover 5 is connected to the internal thread 121 of the connection cavity 12 via an external thread 51;

[0028] The filter cover 5 is connected to the connection chamber 12 by a threaded connection, which is not only simple to connect, but also easy to disassemble the filter cover to repair and replace the internal filter screen and other devices during subsequent shutdown maintenance;

[0029] The other end of the filter cover 5 that is connected to the connecting cavity 12 is provided with a "straight" handle 52;

[0030] A straight handle 52 is provided at one end of the filter cover 5 away from the connecting cavity 12 to facilitate installation and removal of the filter cover 5;

[0031] A fastener 7 is passed through the middle of the filter screen 41, and one end of the fastener 7 passes through the filter screen 41 and is connected to the elastic structure 6. The elastic structure 6 is a cover body made of rubber material, and a fastener connecting cavity 61 is provided at one end thereof facing the fastener 7. One end of the fastener 6 penetrates into the fastener connecting cavity 61, and the other end of the elastic structure 6 is a horizontally arranged abutting plane 62. The elastic structure 6 abuts against the filter body upper cover through the abutting plane 62. It should be noted that the depth of the fastener connecting cavity 61 is greater than the length of the fastener 7. Only in this way can the normal operation of the elastic structure be ensured. An annular body 53 extending toward the filter cavity 11 and abutting against the filter cavity 11 is provided at one end of the filter body upper cover 5 facing the filter cavity 11. The elastic structure 6 is located in the middle of the annular body 53, and a plurality of flow holes 54 are circumferentially provided on the annular body 53. The flow holes 54 are connected to the liquid outlet connector 3.

[0032] A cavity is formed inside the ring body, and a certain gap is left between the outer wall of the ring body and the inner wall of the filter chamber for storing water. Both can store a certain amount of liquid. When the liquid level in these two spaces reaches a certain height, it is discharged into the filter chamber through the flow hole. This can ensure that the sampling device in the external turbidity detector will not directly drain the water in the entire filter chamber completely during the extraction work, causing internal pressure difference and affecting subsequent work. In order to ensure the sealing of the filter chamber, a sealing ring 521 is provided between the connecting cavity 11 and the filter body cover.

[0033] The backflushing device is a backflushing pipe connected to the liquid outlet connector 3;

[0034] When a large area of turbidity occurs, water is poured directly into the filter cavity along the liquid outlet connector through the backflush pipe to flush the turbid liquid back into the external pipe. During backflush, it not only cleans the filter structure but also prevents clogging. Although the backflush pipe and the liquid outlet pipe are both connected to the liquid outlet connector, they are not the same pipe. They can be connected by a tee pipe.

[0035] The beneficial effects of the utility model are as follows: the backflushing structure is coordinated with the conical filter cavity so that the interior of the front filter device can be cleaned without stopping the machine, thereby ensuring the detection efficiency of the equipment.

Claims

1. A pre-filter device for a turbidity detector, comprising a pre-filter body, characterized in that: The front filter body is provided with two filter chambers which are arranged opposite to each other and are independent of each other. The lower end of the front filter body is connected to a liquid inlet connector which is connected to the filter chamber. One side of the front filter body is provided with a liquid outlet connector which is connected to the filter chamber. The liquid flows through the filter chamber through the liquid inlet connector and then flows out from the liquid outlet connector. The cross section of one end of the filter chamber facing the liquid inlet connector is conical and shrinks toward the liquid inlet connector. A filtering structure is provided in the filter chamber, and a backflushing device is connected to the liquid outlet connector.

2. The pre-filter device of the turbidity detector according to claim 1, characterized in that: The filtering structure includes a filter screen, and the front filter body is provided with a connecting cavity above the filter cavity, which is connected to the filter body. The connecting cavity is connected to a detachable filter body upper cover, and an elastic structure is provided between the filter body upper cover and the filter screen. One end of the elastic structure is against the filter body upper cover and the other end is against the filter screen.

3. The pre-filter device of the turbidity detector according to claim 2, characterized in that: An internal thread is provided inside the connecting cavity, and the filter body upper cover is connected to the internal thread of the connecting cavity through an external thread.

4. A pre-filter device for a turbidity detector according to claim 2 or 3, characterized in that: The other end of the filter body upper cover opposite to the connecting cavity is provided with a "straight" handle.

5. The pre-filter device of the turbidity detector according to claim 4, characterized in that: The filtering structure includes a first filter screen and a second filter screen arranged at intervals, and the first filter screen and the second filter screen are connected by fasteners. After the fasteners connect the first filter screen and the second filter screen, they extend to the upper cover of the filter body and are installed with a handle. The upper cover of the filter body facing the filter cavity is provided with a ring body extending toward the filter cavity and abutting the filter cavity. The handle is located in the middle of the ring body. A plurality of flow holes are opened circumferentially on the ring body, and the flow holes are connected to the liquid outlet connector.

6. The pre-filter device of the turbidity detector according to claim 5, characterized in that: The backflushing device is a backflushing pipe connected to the liquid outlet connector.

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