Anti-blocking automatic dredging structure for outlet of filter pressing residue size mixing tank

Abstract

The utility model discloses an anti-blocking automatic dredging structure for an outlet of a filter-press residue size mixing tank, which comprises the filter-press residue size mixing tank, a filter-press residue inlet and a residue slurry outlet are arranged on the filter-press residue size mixing tank, the residue slurry outlet is arranged at the bottom of the filter-press residue size mixing tank, a first valve is mounted at the residue slurry outlet, and a second valve is mounted at the bottom of the filter-press residue size mixing tank. The first valve is connected with an inlet of a filter-press residue slurry conveying pump through a first pipeline, a third valve is mounted at an outlet of the filter-press residue slurry conveying pump, the first pipeline is connected with a second pipeline, a second valve is mounted on the second pipeline, and an inlet of the second valve is a liquid inlet. According to the utility model, the slurry outlet can be prevented from being blocked and can be automatically dredged after being blocked.

Description

Technical Field

[0001] The utility model relates to a filter press residue slurry mixing and conveying device for a filter press, in particular to an anti-blocking and automatic dredging structure for a filter press residue slurry mixing tank outlet. Background Art

[0002] In the wet smelting production using a filter press, some workstations need to use electrolytic waste liquid or acid-containing liquid to slurry the filter press residue in the filter press residue slurry mixing tank. At present, slurry mixing is generally carried out by inputting electrolytic waste liquid or acid-containing liquid from the upper part of the filter press residue slurry mixing tank. When the liquid level in the filter press residue slurry mixing tank reaches the required level, the liquid input is stopped. After the filter press is completed, the plate is pulled down to the filter press residue slurry mixing tank. After the slurry is lowered, the slurry is stirred and slurried. After the slurry mixing is completed, the filter press residue slurry mixing liquid is transported out through the outlet pipe of the filter press residue slurry mixing tank and the filter press residue slurry delivery pump. The outlet pipe of the filter press residue slurry mixing tank is easily blocked during the transportation of the filter press residue slurry mixing liquid, and the outlet pipe can only be cleaned manually after being blocked, which is very troublesome to operate. In addition, when the outlet pipe of the filter press residue slurry mixing tank is blocked, it cannot be automatically judged, automatically processed, and prevented in advance. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the problem that the outlet pipe of the filter press slurry mixing tank is easy to be blocked, the utility model provides an anti-blocking automatic dredging structure of the filter press slurry mixing tank outlet which can prevent blockage and automatically dredge blockage.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A filter press residue slurry mixing tank outlet anti-clogging automatic dredging structure comprises a filter press residue slurry mixing tank, wherein a filter press residue inlet and a slurry outlet are arranged on the filter press residue slurry mixing tank, the slurry outlet is arranged at the bottom of the filter press residue slurry mixing tank, a first valve is installed at the slurry outlet, the first valve is connected to the inlet of a filter press residue slurry delivery pump via a first pipeline, a third valve is installed at the outlet of the filter press residue slurry delivery pump, the first pipeline is connected to a second pipeline, a second valve is installed on the second pipeline, and the inlet of the second valve is arranged as a liquid inlet.

[0006] The utility model installs a first valve and a second valve at the slurry outlet of the filter press slurry mixing tank, and installs a third valve at the outlet of the filter press slurry delivery pump, and the inlet of the second valve is set as a liquid inlet for inputting electrolytic waste liquid or acid-containing liquid, so that the slurry outlet of the filter press slurry mixing tank can be flushed with the liquid inlet, which plays a role in preventing blockage. When the slurry outlet is blocked, the slurry outlet can also be flushed by starting the liquid inlet, thereby realizing automatic dredging of the slurry outlet.

[0007] Furthermore, the anti-blocking and automatic dredging structure for the outlet of the filter press residue slurry mixing tank also includes a control cabinet, the first valve, the second valve, and the third valve are pneumatic valves, and the first valve, the second valve, the third valve, and the filter press residue slurry delivery pump are respectively connected to the control cabinet. In this way, the first valve, the second valve, the third valve, and the filter press residue slurry delivery pump can be automatically controlled by the control cabinet to achieve automatic dredging control of the residue slurry outlet.

[0008] Furthermore, a current detection device is connected to the control circuit of the filter press slurry delivery pump, so that whether the slurry outlet is blocked can be determined by detecting whether the operating current of the filter press slurry delivery pump is less than or equal to the blocking current.

[0009] Furthermore, the filter press residue inlet is connected to the residue discharge port of the filter press, so as to facilitate the filter press residue of the filter press to directly enter the filter press residue slurry mixing tank.

[0010] Furthermore, a level meter and a stirrer are installed in the filter press residue slurry mixing tank. The level meter is used to detect the liquid level of the filter press residue slurry mixing tank, and the stirrer is used for stirring operation in the filter press residue slurry mixing tank.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model feeds liquid from the bottom of the filter press slurry mixing tank. Each time the liquid is fed in, the first and second pipes and the slurry outlet can be automatically flushed, actively preventing blockage and greatly reducing the probability of blockage;

[0013] 2. After the filter press slurry delivery pump of the utility model completes the pumping, the delivery pipeline is automatically flushed by switching the first, second and third valves to prevent excessive slurry and scaling from remaining in the delivery pipeline and prevent blockage;

[0014] 3. The utility model detects whether the operating current i of the filter press slurry delivery pump is less than or equal to the blocking current i d It can automatically judge whether the slurry outlet is blocked, and automatically clear the blockage through the control cabinet's control of the first, second and third valves, avoiding manual cleaning of the blockage, improving production efficiency and reducing labor costs;

[0015] 4. The utility model automatically switches the first, second and third valves and automatically determines the blockage situation according to parameters such as the liquid level of the filter press slurry mixing tank and the operating current of the filter press slurry delivery pump. The entire system runs automatically, which greatly reduces the labor intensity of workers and ensures continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model of an anti-blocking and automatic dredging structure for the outlet of a filter press residue slurry mixing tank. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, 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; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1 An embodiment of the utility model of the anti-blocking automatic dredging structure of the filter press residue slurry mixing tank outlet includes a first valve F1, a second valve F2, a third valve F3, a liquid level meter 1, a current detection device (not shown in the figure), a filter press 2, a filter press residue slurry mixing tank 3, a mixer 4, a filter press residue slurry delivery pump 5, a filter press liquid storage tank 6 and a control cabinet 7, etc.

[0022] The filter press residue slurry adjusting tank 3 is provided with a filter press residue inlet 31 and a slurry outlet 32, and a liquid level meter 1 and a mixer 4 are installed in the filter press residue slurry adjusting tank 3. The filter press residue inlet 31 is connected to the residue discharge port of the filter press 2, and is used to input the filter press residue. The slurry outlet 32 ​​is arranged at the bottom of the filter press residue slurry adjusting tank 3, and is used to input slurry. The slurry outlet 32 ​​is installed with a first valve F1, and the first valve F1 is connected to the inlet of the filter press residue slurry delivery pump 5 through the first pipeline 8, and the outlet of the filter press residue slurry delivery pump 5 is installed with a third valve F3, the first pipeline 8 is connected to the second pipeline 9, and the second pipeline 9 is installed with a second valve F2, and the inlet of the second valve F2 is set as a liquid inlet for inputting electrolytic waste liquid or acid-containing liquid.

[0023] The first valve F1, the second valve F2, and the third valve F3 are pneumatic valves, and the first valve F1, the second valve F2, the third valve F3, and the filter press slurry delivery pump 5 are respectively connected to the control cabinet 7, and the first valve F1, the second valve F2, the third valve F3, and the filter press slurry delivery pump 5 are automatically controlled by the control cabinet 7.

[0024] A current detection device is connected to the control circuit of the filter press slurry delivery pump 5, so that whether the slurry outlet 32 ​​and the pipeline are blocked can be determined by detecting whether the operating current of the filter press slurry delivery pump 5 is less than or equal to the blocking current.

[0025] The specific working process of the utility model is:

[0026] 1. When the filter press residue slurry mixing tank 3 starts to flow in, the control cabinet 7 automatically controls the first valve F1 to open, the second valve F2 to open, and the third valve F3 to close, and the electrolytic waste liquid or acid-containing liquid enters the filter press residue slurry mixing tank 3 through the opened second valve F2, the first valve F1 and the slurry outlet 32;

[0027] 2. The liquid level of the filter press slurry mixing tank begins to rise. When the actual liquid level of the filter press slurry mixing tank is ≥ the stirring start-stop liquid level, the agitator 4 of the filter press slurry mixing tank starts to run; when the actual liquid level of the filter press slurry mixing tank is ≥ the mixing liquid level, the second valve F2 and the first valve F1 are automatically closed to complete the liquid inflow of the filter press slurry mixing tank 3;

[0028] 3. After the filter press 2 is finished filtering, the plate is pulled to discharge the residue. After the residue is discharged, the filter press residue slurry mixing tank 3 is stirred and slurried;

[0029] 4. After the slurry adjustment is completed, the first valve F1 is closed, the second valve F2 is opened, the third valve F3 is opened, the filter press slurry delivery pump 5 is started, and the electrolytic waste liquid or acid-containing liquid is used to flush the filter press slurry delivery pump 5 and the delivery pipeline to start pipe washing;

[0030] 5. After the delay setting of the pipe washing time, the filter press slurry delivery pump 5 stops, the first valve F1 opens, the second valve F2 opens, and the third valve F3 closes, and the electrolytic waste liquid or acid-containing liquid washes the slurry outlet 32 ​​to prevent the slurry outlet 32 ​​of the filter press slurry mixing tank 3 from being blocked, thereby achieving early prevention;

[0031] 6. After the delay setting of the flushing slurry outlet time, the third valve F3 is opened, the filter press slurry delivery pump 5 is started again, the second valve F2 is closed, and the filter press slurry mixing liquid is transported outward through the pipeline;

[0032] 7. The liquid level of the filter press residue slurry mixing tank 3 begins to drop. When the actual liquid level of the filter press residue slurry mixing tank is ≤ the stirring start-stop liquid level, the agitator 4 of the filter press residue slurry mixing tank 3 stops running; when the actual liquid level of the filter press residue slurry mixing tank is ≤ the pump stop liquid level, the second valve F2 is opened and the first valve F1 is closed, and the filter press residue slurry delivery pump 5 and the delivery pipeline are automatically cleaned with electrolytic waste liquid or acid-containing liquid, and the pipeline is washed after the filter press residue slurry delivery is completed;

[0033] 8. After the delay setting of the pipe washing time, the filter press slurry delivery pump 5 stops running, the first valve F1 is opened, and the third valve F3 is closed, and the electrolytic waste liquid or acid-containing liquid enters the filter press slurry mixing tank 3 through the opened second valve F2, the first valve F1 and the slurry outlet 32 ​​of the filter press slurry mixing tank 3, and starts to feed liquid again, returning to step 1 to start the next cycle;

[0034] 9. When the filter press slurry delivery pump 5 starts running, the control system automatically detects the operating current of the filter press slurry delivery pump 5. When the operating current is ≤ the blocking current, it automatically determines that the slurry outlet 32 ​​and the pipeline are blocked, returns to step 4 to start running, flushes the delivery pipeline and the slurry outlet 32 ​​again, and automatically clears the blockage.

[0035] The slurry adjustment level, stirring start and stop level, pump stop level, blocking current, pipe washing time, and pre-embedded opening flushing time involved in the utility model are all system-settable parameters and can be flexibly adjusted according to actual operating conditions.

[0036] The above is only a specific implementation scheme of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the field can make many possible changes and modifications to the technical scheme of the utility model by using the technical content disclosed above without departing from the scope of the technical scheme of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical scheme of the utility model shall fall within the protection scope of the technical scheme of the utility model.

Claims

1. An anti-blocking and automatic dredging structure for the outlet of a filter press residue slurry mixing tank, comprising a filter press residue slurry mixing tank, wherein a filter press residue inlet and a slurry outlet are arranged on the filter press residue slurry mixing tank, and the slurry outlet is arranged at the bottom of the filter press residue slurry mixing tank, characterized in that: A first valve is installed at the slurry outlet, and the first valve is connected to the inlet of the filter press slurry delivery pump via a first pipeline. A third valve is installed at the outlet of the filter press slurry delivery pump, and the first pipeline is connected to the second pipeline. A second valve is installed on the second pipeline, and the inlet of the second valve is set as a liquid inlet.

2. The anti-blocking and automatic dredging structure for the outlet of the filter press residue slurry mixing tank according to claim 1 is characterized in that: It also includes a control cabinet, wherein the first valve, the second valve, and the third valve are pneumatic valves, and the first valve, the second valve, the third valve, and the filter press slurry delivery pump are respectively connected to the control cabinet.

3. The anti-blocking and automatic dredging structure for the outlet of the filter press residue slurry mixing tank according to claim 1 or 2, characterized in that: A current detection device is connected to the control circuit of the filter press slurry delivery pump.

4. The anti-blocking and automatic dredging structure for the outlet of the filter press residue slurry mixing tank according to claim 1 or 2, characterized in that: The filter press residue inlet is connected to the residue discharge port of the filter press.

5. The anti-blocking and automatic dredging structure for the outlet of the filter press residue slurry mixing tank according to claim 1 or 2, characterized in that: A liquid level meter and a stirrer are installed in the filter press residue slurry mixing tank.

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