Anti-blocking discharging repulping device

Abstract

The utility model discloses an anti-blocking discharging re-pulping device. A generating tower is connected with a filtering system, the filtering system is connected with a stock bin, the stock bin is connected with a re-pulping tank, the re-pulping tank is connected with a washing water storage tank through a re-pulping water storage tank and a lifting pump, the washing water storage tank is connected with the filtering system, and the filtering system is connected with a filtered water treatment pond. The stock bin is intensified, the slope angle of the stock bin is larger than the repose angle of silicon dioxide piling, dependence on the washing effect of slurry water during discharging is reduced, and therefore the blocking situation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of filter re-slurry, and particularly relates to a blocking-preventing unloading re-slurry device. BACKGROUND

[0002] A filter system is a commonly used device in chemical production and is mainly used for the separation of liquid phase and solid phase. In the production process of wet-process phosphoric acid, the filter system is needed to separate liquid-phase phosphoric acid from solid-phase phosphogypsum. In addition, due to the large amount of phosphogypsum, it is not easy to handle in the production plant area, and the phosphogypsum needs to be re-slurried with water and then transported over a long distance. After being transported to the phosphogypsum treatment area, the filter system is used for solid-liquid separation, and the liquid phase is returned to the wet-process phosphoric acid production area for reuse.

[0003] The solid phase separated by the filter system needs to be unloaded into a bin by manual operation and then subjected to re-slurry and other processes. Since the filter system is often composed of multiple filter machines, each filter machine is equipped with a bin for unloading. In order to transport the solid phase material to the re-slurry tank for treatment, the slope of some bins is relatively gentle. If the filter machine unloads too quickly, the bin is prone to be blocked, which seriously affects normal production, and also easily leads to material leakage, pollutes the environment, and brings safety risks.

[0004] Chinese patent CN117443068A discloses a filter machine tank body lower discharge port cone part unblocking device and unblocking method. The device includes a spray ring pipe arranged at the lower discharge tank cone part to realize uniform and comprehensive disturbance and dredging of the lower discharge tank cone part. One side of the spray ring pipe is connected to two unblocking working substances. One is industrial water, which can directly impact and flush the blocked foreign matter. The other is industrial gas, which is convenient for floating up by expansion when arching occurs at the upper part of the discharge port to achieve the purpose of slope bridging. An energy accumulator is arranged between the spray ring pipe and the two unblocking working substances to maintain the stability of the pressure of the working substance during unblocking operation. The filter machine tank body lower discharge port cone part unblocking device improves the reliability of the operation of the vacuum ceramic filter, greatly reduces the maintenance workload, and ensures the continuity and reliability of water treatment.

[0005] However, the existing unblocking device has a complex structure and can only solve the problem of pipeline blockage. The cleaning and anti-blocking of the filter machine interior are not concerned. SUMMARY

[0006] In view of the above technical problems, the utility model provides a blocking-preventing unloading re-slurry device, which integrates bins and makes the slope angle of the bin greater than the stacking rest angle of silicon dioxide, thereby reducing the dependence on the washing effect of re-slurry water during unloading and reducing the occurrence of blockage.

[0007] In order to achieve the above object, the utility model provides a kind of anti-blocking unloading and re-pulping device, tower is connected with filter system, filter system is connected with bunker, bunker is connected with re-pulping tank, re-pulping tank is connected with washing water storage tank through re-pulping water storage tank and lifting pump, washing water storage tank is connected with filter system, filter system is connected with filter water treatment pool.

[0008] Preferably, the filter system is composed of a first filter, a second filter and a third filter; the first filter, the second filter and the third filter are connected in series and in parallel.

[0009] Preferably, the bottom of the bunker is provided with a discharge port, and the top of the re-pulping tank is provided with a material inlet; the discharge port is connected with the material inlet by a pipeline.

[0010] Further preferably, the bottom of the material inlet is provided with a discharging pipe, which extends into the re-pulping tank, and the opening of the discharging pipe is below the normal liquid level of the re-pulping tank.

[0011] Preferably, the re-pulping tank is provided with a stirring device at the top and a re-pulping water inlet.

[0012] Preferably, the side of the re-pulping tank is provided with an overflow port, which is connected with a re-pulping water storage tank by a pipeline; the re-pulping water storage tank is connected with the re-pulping tank by a re-pulping water inlet.

[0013] Further preferably, the bottom of the re-pulping water storage tank is provided with a blowdown valve.

[0014] Preferably, the slope angle of the bunker is greater than the angle of repose of silicon.

[0015] The present application has the following advantages:

[0016] 1. Adjusting the structure and slope angle of the bunker, and replacing one bunker with one for each filter, can improve the intensity of the device, and adjusting the slope angle of the bunker to be greater than the angle of repose of silicon can make the solid material automatically fall into the re-pulping tank, reduce the dependence on re-pulping water, greatly reduce the blocking of the material, improve the production efficiency, and reduce the dependence on manual operation.

[0017] 2. Using the washing water in the washing water storage tank to wash the filter system can help dissolve the solid-phase material, further help unload the material, reduce the adhesion of the solid-phase material to the filter cloth in the filter, and improve the unloading effect.

[0018] 3. The utility model contains multiple filters, which can be connected in series and in parallel by pipelines, can be filtered multiple times to improve the separation effect, and the filters can be used as backups to avoid downtime for maintenance due to filter failure, which affects normal production. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The whole structure schematic view of the utility model, figure 1 is first filter, 2 is second filter, 3 is third filter, 4 is stock bin, 5 is discharge gate, 6 is re-slurry tank, 7 is stirring device, 8 is overflow, 9 is material inlet, 10 is re-slurry water inlet, 11 is re-slurry water storage tank, 12 is blowdown valve, 13 is washing water storage tank, 14 is filtered water treatment tank, 15 is booster pump, 16 is generation tower. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be further explained and described below in combination with the drawings and specific embodiments, and it is worth noting that the following embodiments are only preferred embodiments of the utility model and should not be understood as limiting the utility model, and the protection scope of the utility model should be subject to the content recorded in the claims. The modification and replacement of the technical scheme of the utility model made by the person skilled in the art without creative labor all fall within the protection scope of the utility model.

[0021] Embodiment 1

[0022] As Figure 1 shown, a kind of anti-blocking unloading re-slurry device, generation tower 16 is connected with filter system, filter system is connected with stock bin 4, stock bin 4 is connected with re-slurry tank 6, solid-liquid mixture generated in filter system is carried out solid-liquid separation by generation tower 16, solid phase is unloaded to stock bin 4, then is transported to re-slurry tank 6 in pipeline and carries out re-slurry again;Re-slurry tank 6 is connected with washing water storage tank 13 by re-slurry water storage tank 11 and booster pump 15, washing water storage tank 13 is connected with filter system, filter system is connected with filtered water treatment tank 14, the supernatant in re-slurry tank 6 is transported to washing water storage tank 13 by booster pump 15 and is stored, then is transported to filter system by pipeline and valve control, and the residual solid phase in filter system is dissolved, facilitating material emptying, to prevent filter system from being blocked.

[0023] Preferably, the filter system is composed of the first filter 1, the second filter 2 and the third filter 3; the first filter 1, the second filter 2 and the third filter 3 are connected in series and in parallel, which can simultaneously satisfy multiple filters to carry out solid-liquid separation on the material, and the filters connected in series can recycle the liquid phase after filtration, further reduce the solid content in the liquid phase, and improve the solid-liquid separation effect.

[0024] Preferably, the stock bin 4 is provided with the discharge gate 5 at the bottom, and the re-slurry tank 6 is provided with the material inlet 9 at the top, and the discharge gate 5 is connected with the material inlet 9 by pipeline, so as to transport the solid-phase material in the stock bin 4 to the re-slurry tank 6 for re-slurry.

[0025] Further preferably, the material inlet 9 is provided with a discharge pipe which extends into the reslurry tank 6 and the discharge pipe opening is below the normal liquid level of the reslurry tank 6 to avoid the gas generated in the reslurry tank 6 from flowing back into the filter to affect the filtering effect, and the liquid contained in the discharge pipe can be added to the solid phase to dissolve and disperse the solid phase to prevent the solid phase from blocking the discharge pipe and affecting the discharging and reslurry effect.

[0026] Preferably, the reslurry tank 6 is provided with a stirring device 7 to mix the solid phase and the liquid phase sufficiently to improve the reslurry rate, and the top of the reslurry tank 6 is provided with a reslurry water inlet 10 to supplement the liquid phase into the reslurry tank 6.

[0027] Preferably, the reslurry tank 6 is provided with an overflow port 8 on the side, the overflow port 8 is connected with a reslurry water storage tank 11, and the reslurry water storage tank 11 is connected with the reslurry tank 6 through the reslurry water inlet 10 to overflow the clear liquid on the upper layer of the reslurry tank 6 out of the reslurry tank 6 and into the reslurry water storage tank 11 for liquid supplement of the reslurry tank 6.

[0028] Further preferably, the reslurry water storage tank 11 is provided with a blowdown valve 12 at the bottom to blow down regularly.

[0029] Preferably, the slope angle of the material bin 4 is greater than the pile rest angle of the silicon dioxide to prevent the solid phase material from piling up in the material bin to cause blocking.

[0030] Preferably, each filter is provided with an independent washing water pipeline and a control valve on the washing water pipeline, and the opening and closing of the valve can be controlled remotely to control whether the filter is washed and unloaded, which has a high degree of automation, and the washing water can dissolve the material to avoid subsequent blocking.

Claims

1. A de-clogging and re-slurry device, characterized in that: The occurrence tower (16) is connected with a filtering system, the filtering system is connected with a stock bin (4), the stock bin (4) is connected with a re-slurry tank (6), the re-slurry tank (6) is connected with a washing water storage tank (13) through a re-slurry water storage tank (11) and a lifting pump (15), the washing water storage tank (13) is connected with the filtering system, and the filtering system is connected with a filtering water treatment pool (14).

2. The anti-blocking and unloading re-slurry device according to claim 1, characterized in that: The filtering system is composed of a first filter (1), a second filter (2) and a third filter (3); the first filter (1), the second filter (2) and the third filter (3) are connected in series and in parallel.

3. The anti-blocking and unloading re-slurry device according to claim 1, characterized in that: The stock bin (4) is provided with a discharge port (5) at the bottom, and the re-slurry tank (6) is provided with a material inlet (9) at the top; the discharge port (5) is connected with the material inlet (9) through a pipeline.

4. The anti-blocking and unloading re-slurry device according to claim 3, characterized in that: The material inlet (9) is provided with a discharging pipe at the bottom, the discharging pipe extends into the re-slurry tank (6), and the discharging pipe opening is below the normal liquid level of the re-slurry tank (6).

5. The anti-blocking and unloading re-slurry device according to claim 1, characterized in that: The re-slurry tank (6) is provided with a stirring device (7) inside and a re-slurry water inlet (10) at the top.

6. The anti-blocking and unloading re-slurry device according to claim 1, characterized in that: The re-slurry tank (6) is provided with an overflow port (8) at the side, the overflow port (8) is connected with the re-slurry water storage tank (11) through a pipeline, and the re-slurry water storage tank (11) is connected with the re-slurry tank (6) through a pipeline at the re-slurry water inlet (10).

7. The anti-blocking and unloading re-slurry device according to claim 1 or 5, characterized in that: The re-slurry water storage tank (11) is provided with a blowdown valve (12) at the bottom.

8. The anti-blocking and unloading re-slurry device according to claim 1, characterized in that: The slope angle of the stock bin (4) is greater than the pile rest angle of silicon dioxide.

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