Solid-liquid separation washing device

Abstract

The utility model relates to a solid-liquid separation device, in particular to a solid-liquid separation washing device, which comprises a material storage device connected with a quantitative sampling device through a discharge port valve; the quantitative sampling device comprises a first-stage quantitative sampling tank, and the bottom of the first-stage quantitative sampling tank is connected with a filtering and washing device through a material transfer valve; a PLC automatic control cabinet; according to the quantitative sampling device, materials are conveyed into the first-stage quantitative sampling tank through the sampling assembly by utilizing the pressure of the material storage equipment, the liquid level of the materials is detected by utilizing a plurality of liquid level switches, and the sampling valve is controlled to be closed when the set liquid level is reached, so that quantitative sampling is realized; materials are conveyed into the filtering bin through gravity, after it is detected that the materials reach the standard position through the second liquid level switch, the material transferring valve is closed, pressurized gas is introduced through the second pressure control valve, and pressurized filtering is achieved. In the whole process, opening and closing of each valve are controlled through the PLC automatic control cabinet, manual control is not needed, sampling is convenient, and meanwhile potential safety hazards caused by material occurrence can be reduced.

Description

Technical Field

[0001] The utility model relates to a solid-liquid separation device, in particular to a solid-liquid separation washing device. Background Art

[0002] In the production process of chemical industry, sewage treatment, food production, etc., it is an indispensable process to separate the solid and liquid of the slurry in the storage equipment in small quantities and batches, remove the filtrate, collect the solid material, and wash and dry the material. The common solid-liquid separation method is to use a vacuum pump to connect the Buchner funnel and the suction bottle, place a filter membrane or filter paper in the Buchner funnel, and use the vacuum pump to draw negative pressure to achieve solid-liquid separation of the slurry, then add several times of eluent to achieve the washing of the material, and finally put the material into the oven to dry the material.

[0003] If the experimenter fails to replenish the liquid in time during the elution process, the filter cake may crack, causing the eluent to flow directly from the cracks of the filter cake, resulting in insufficient filter cake washing, which may cause errors in the subsequent operation process. When parallel experiments are required, differences in the timing and amount of liquid replenishment may also cause different degrees of filter cake elution, thereby affecting the experimental results. During the sampling process, the evolution of materials will also affect the health of operators. Utility Model Content

[0004] The main purpose of the utility model is to provide a solid-liquid separation and washing device to solve the problems proposed in the related art that the sampling process is cumbersome, the operation error is large, and the material will be released during the sampling process.

[0005] In order to achieve the above object, according to one aspect of the utility model, a solid-liquid separation washing device is provided, comprising:

[0006] A material storage device, the material storage device is used to store materials, a discharge port valve is provided on the top of the material storage device, and the discharge port valve is connected to a quantitative sampling device through a pipeline;

[0007] The quantitative sampling device comprises a primary quantitative sampling tank, which is connected to the material storage device through a sampling assembly, and a plurality of liquid level switches are evenly arranged on the side of the primary quantitative sampling tank, and the liquid level switches are used to detect the liquid level in the primary quantitative sampling tank, and the bottom of the primary quantitative sampling tank is connected to a filtering and washing device through a material transfer valve;

[0008] The filtering and washing device comprises a secondary filtering and washing tank, which is connected to the material transfer valve through a pipeline, and comprises a filtering bin, a filtrate bin is installed below the filtering bin through a quick release buckle, a filtering device is arranged between the filtering bin and the filtrate bin, and a second drain valve is arranged in the middle of the bottom surface of the filtrate bin;

[0009] A PLC automatic control cabinet is connected with the quantitative sampling device and the filtering and washing device through a wire.

[0010] Furthermore, the sampling assembly includes a sampling tube, a sampling valve is connected to the left end of the sampling tube, and a sampling tube flushing valve is provided on the right side of the sampling valve and in the middle of the sampling tube.

[0011] Furthermore, the top of the first-level quantitative sampling tank is provided with a sampling tank flushing valve, a sampling tank emptying valve and a standby valve from left to right. The sampling tank flushing valve is used to connect to an external water source, the sampling tank emptying valve is used to discharge the air in the first-level quantitative sampling tank, and the standby valve is used to connect to a negative pressure device.

[0012] Furthermore, a drain valve is provided at the bottom of the first-level quantitative sampling tank, and the drain valve is used to discharge residual materials inside the first-level quantitative sampling tank. The height of the drain valve is lower than the material transfer valve.

[0013] Furthermore, the liquid level switch, sampling valve, sampling tube flushing valve, sampling tank flushing valve, sampling tank drain valve, standby valve, drain valve and material transfer valve are all connected to the PLC automatic control cabinet through wires.

[0014] Furthermore, a second drain valve, a second pressure control valve and a second automatic washing valve are provided on the top of the filter bin, the second drain valve is used to discharge the internal gas of the secondary filter washing tank, the second pressure control valve is used to connect the pressurizing equipment, and the second automatic washing valve is used to connect the external water source.

[0015] Furthermore, a second liquid level switch is provided on the left side of the filter bin, and the second liquid level switch is used to detect whether the liquid level inside the secondary filter washing tank meets the standard.

[0016] Furthermore, the second liquid level switch, the second drain valve, the second pressure control valve, the second automatic washing valve and the second drain valve are connected to the PLC automatic control cabinet through wires.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model controls the switch of each valve through a PLC automatic control cabinet, uses the pressure of the storage equipment or uses a spare valve to connect a negative pressure device to make the first-level quantitative sampling tank in a negative pressure state, and transports the material to the first-level quantitative sampling tank through a sampling component, and uses multiple liquid level switches to detect the material level. When the material level reaches the set level, the PLC automatic control cabinet controls the sampling valve to close to achieve quantitative sampling; by controlling the switch of the transfer valve, the material is transported to the filter bin by gravity, and after the second liquid level switch is used to detect that the material reaches the standard position, the transfer valve is closed, and the pressurized gas is introduced through the second pressure control valve to achieve pressurized filtration. The whole process does not require manual control, and sampling is convenient, while reducing the potential safety hazards caused by material leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the material storage equipment of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the quantitative sampling device of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the quantitative sampling device of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the filtering and washing device of the utility model;

[0024] Figure 6 It is a schematic diagram of the cross-sectional structure of the filtering and washing device of the utility model.

[0025] Illustration Description:

[0026] 1. Material storage equipment; 11. Material outlet valve; 12. Material pressing pipe;

[0027] 2. Quantitative sampling device; 21. Primary quantitative sampling tank; 211. Sampling tank observation port; 212. Liquid level switch; 22. Sampling assembly; 221. Sampling tube; 222. Sampling valve; 223. Sampling tube flushing valve; 23. Sampling tank flushing valve; 24. Sampling tank spray ball; 25. Sampling tank drain valve; 26. Spare valve; 27. Drain valve; 28. Transfer valve;

[0028] 3. Filtering and washing device; 31. Secondary filtering and washing tank; 311. Filtering chamber; 312. Filtrate chamber; 313. Quick release buckle; 314. Second liquid level switch; 315. Second observation port; 32. Second drain valve; 33. Second pressure control valve; 34. Second automatic washing valve; 35. Second spray ball; 36. Filter plate; 37. Filter membrane; 38. Second drain valve;

[0029] 4. PLC automatic control cabinet. DETAILED DESCRIPTION

[0030] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0031] See also Figures 1 to 6 , this embodiment provides a solid-liquid separation washing device, comprising:

[0032] The material storage device 1 is used for storing materials. A discharge port valve 11 is fixedly installed on the top of the material storage device 1 by bolts. The discharge port valve 11 is connected to a quantitative sampling device 2 through a pipeline.

[0033] The discharge port valve 11 is a manual valve, and the discharge port valve 11 is kept in a normally open state. The material storage device 1 is internally threaded with a pressing pipe 12, which is connected to the discharge port valve 11. The material can enter the discharge port valve 11 from the pressing pipe 12.

[0034] The quantitative sampling device 2 includes a first-level quantitative sampling tank 21, which is connected to the storage device 1 through a sampling assembly 22. Four liquid level switches 212 are evenly fixed on the side of the first-level quantitative sampling tank 21 by bolts. The liquid level switch 212 is used to detect the liquid level in the first-level quantitative sampling tank 21. The bottom of the first-level quantitative sampling tank 21 is connected to a filtering and washing device 3 through a transfer valve 28.

[0035] The liquid level switch 212 is a tuning fork liquid level switch, and the spacing between the liquid level switches 212 is equal. When the liquid level switch 212 contacts the liquid, a signal is sent. A sampling tank observation port 211 is provided through the front of the primary quantitative sampling tank 21 for observing the internal situation of the primary quantitative sampling tank 21.

[0036] The sampling assembly 22 includes a sampling tube 221 , a sampling valve 222 is threadedly connected to the left end of the sampling tube 221 , and a sampling tube flushing valve 223 is threadedly connected to the right side of the sampling valve 222 and located in the middle of the sampling tube 221 .

[0037] The left end of the sampling tube 221 is welded to the primary quantitative sampling tank 21, and the sampling tube 221 is a three-way tube. The sampling valve 222 and the sampling tube flushing valve 223 use electromagnetic valves with manual switches. The left end of the sampling valve 222 is connected to the discharge port valve 11 through a pipeline. The top of the sampling tube flushing valve 223 is connected to a water source through a pipeline, and the water source can use a well-known water outlet tank and other equipment.

[0038] The top of the primary quantitative sampling tank 21 is threadedly installed with a sampling tank flushing valve 23, a sampling tank emptying valve 25 and a standby valve 26 from left to right. The sampling tank flushing valve 23 is used to connect to an external water source, the sampling tank emptying valve 25 is used to exhaust the air in the primary quantitative sampling tank 21, and the standby valve 26 is used to connect to a negative pressure device.

[0039] The negative pressure device adopts a known vacuum pump or other air extraction device, and the external water source can adopt a known water outlet tank or other equipment. The sampling tank flushing valve 23, the sampling tank emptying valve 25 and the standby valve 26 adopt electromagnetic valves with manual switches.

[0040] A sampling tank spray ball 24 is installed on the internal thread of the primary quantitative sampling tank 21 , and the sampling tank spray ball 24 is connected to the sampling tank flushing valve 23 .

[0041] A drain valve 27 is also provided at the bottom of the primary quantitative sampling tank 21 . The drain valve 27 is used to discharge the residual material inside the primary quantitative sampling tank 21 . The height of the drain valve 27 is lower than the material transfer valve 28 .

[0042] The primary quantitative sampling tank 21, the drain valve 27 and the material transfer valve 28 are connected by a three-way pipe. The drain valve 27 and the material transfer valve 28 are electromagnetic valves with manual switches.

[0043] The filtering and washing device 3 includes a secondary filtering and washing tank 31, which is connected to the material transfer valve 28 through a pipeline. The secondary filtering and washing tank 31 includes a filtering bin 311, and a filtrate bin 312 is installed below the filtering bin 311 through a quick-release buckle 313. A filtering device is provided between the filtering bin 311 and the filtrate bin 312, and a second drain valve 38 is provided in the middle of the bottom surface of the filtrate bin 312.

[0044] The top of the secondary filtering and washing tank 31 is lower than the bottom of the primary quantitative sampling tank 21. The second drain valve 38 adopts a solenoid valve with a manual switch.

[0045] The filtering device includes a filter plate 36 , and a filter membrane 37 is wrapped around the outside of the filter plate 36 . The filter plate 36 and the filter membrane 37 are clamped by the filter chamber 311 and the filtrate chamber 312 .

[0046] A second observation port 315 is provided through the front side of the secondary filtering and washing tank 31 . The second observation port 315 is used to observe the internal situation of the secondary filtering and washing tank 31 .

[0047] A second drain valve 32, a second pressure control valve 33 and a second automatic washing valve 34 are provided on the top of the filter chamber 311. The second drain valve 32 is used to discharge the internal gas of the secondary filter washing tank 31, the second pressure control valve 33 is used to connect the pressurizing equipment, and the second automatic washing valve 34 is used to connect the external water source.

[0048] The pressurizing device adopts a known air compressor or a nitrogen gas storage tank. The second exhaust valve 32, the second pressure control valve 33 and the second automatic washing valve 34 adopt electromagnetic valves with manual switches.

[0049] A second spray ball 35 is threadedly installed on the right side of the filter chamber 311 , and the second spray ball 35 is connected to the second automatic washing valve 34 .

[0050] A second liquid level switch 314 is disposed on the left side of the filter chamber 311 , and the second liquid level switch 314 is used to detect whether the liquid level inside the secondary filter washing tank 31 meets the standard.

[0051] The second liquid level switch 314 is a tuning fork liquid level switch, and will send out a signal when the second liquid level switch 314 contacts the liquid.

[0052] The PLC automatic control cabinet 4 is connected with the quantitative sampling device 2 and the filtering and washing device 3 through a wire.

[0053] The liquid level switch 212, the sampling valve 222, the sampling tube flushing valve 223, the sampling tank flushing valve 23, the sampling tank emptying valve 25, the standby valve 26, the drain valve 27 and the material transfer valve 28 are all connected to the PLC automatic control cabinet 4 through wires. The second liquid level switch 314, the second drain valve 32, the second pressure control valve 33, the second automatic washing valve 34 and the second drain valve 38 are connected to the PLC automatic control cabinet 4 through wires.

[0054] The PLC automatic control cabinet 4 is used to receive signals from the liquid level switch 212 and the second liquid level switch 314 and control the opening and closing of each valve.

[0055] Working principle:

[0056] Start the PLC automatic control cabinet 4, open the sampling tank emptying valve 25, wait for a certain period of time, open the sampling valve 222, rely on the internal pressure of the storage device 1 to press the material into the pressure pipe 12, then enter the sampling pipe 221 through the outlet valve 11, and finally enter the primary quantitative sampling tank 21.

[0057] If the internal pressure of the material storage device 1 is insufficient, close the sampling tank drain valve 25, open the standby valve 26, and use the negative pressure device to make the internal pressure of the primary quantitative sampling tank 21 lower than that of the material storage device 1, and use the negative pressure to absorb the material.

[0058] The material level in the primary quantitative sampling tank 21 rises, the liquid level switch 212 contacts the material level, the sampling valve 222 is closed, the drain valve 27 is opened, the material is discharged for the first time, and after a certain period of time the material is drained, the drain valve 27 is closed, and the sampling valve 222 is opened again for the second sampling, thereby avoiding material contamination.

[0059] After the secondary sampling is completed, the material transfer valve 28 and the second drain valve 32 are opened, and the material is sent into the filter bin 311 by utilizing the height difference between the primary quantitative sampling tank 21 and the secondary filtering and washing tank 31. When the second liquid level switch 314 contacts the material liquid surface, the material transfer valve 28 and the second drain valve 32 are closed to complete the material transfer.

[0060] Open the second drain valve 38 and the second pressure control valve 33 to perform pressurized filtration using compressed air. After waiting for a while, close the second pressure control valve 33 and open the second automatic washing valve 34 to fill the liquid. When the second liquid level switch 314 contacts the material liquid surface, open the second pressure control valve 33 and close the second automatic washing valve 34. Repeat this process three times.

[0061] After the filtration is completed, the quick release buckle 313 is opened, the material and the filter membrane 37 are taken out, the filter plate 36 is put back to its original position, and the quick release buckle 313 is reset.

[0062] The sampling tube flushing valve 223 , the sampling tank flushing valve 23 , the drain valve 27 , the second automatic washing valve 34 and the second drain valve 38 are started to clean the primary quantitative sampling tank 21 , the sampling tube 221 , the secondary filter washing tank 31 and the filter plate 36 .

[0063] After cleaning, open the quick release buckle 313, take out the filter plate 36, wrap the filter membrane 37, put it back to its original position, and reset the quick release buckle 313 for next use.

[0064] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A solid-liquid separation washing device, It is characterized in that include: A material storage device (1), the material storage device (1) is used to store materials, a material outlet valve (11) is provided on the top of the material storage device (1), and the material outlet valve (11) is connected to a quantitative sampling device (2) via a pipeline; The quantitative sampling device (2) comprises a primary quantitative sampling tank (21), the primary quantitative sampling tank (21) being connected to the material storage device (1) via a sampling assembly (22), a plurality of liquid level switches (212) being evenly arranged on the side of the primary quantitative sampling tank (21), the liquid level switches (212) being used to detect the liquid level in the primary quantitative sampling tank (21), and the bottom of the primary quantitative sampling tank (21) being connected to a filtering and washing device (3) via a material transfer valve (28); The filtering and washing device (3) comprises a secondary filtering and washing tank (31), the secondary filtering and washing tank (31) being connected to the material transfer valve (28) via a pipeline, the secondary filtering and washing tank (31) comprising a filtering bin (311), a filtrate bin (312) being installed below the filtering bin (311) via a quick release buckle (313), a filtering device being arranged between the filtering bin (311) and the filtrate bin (312), and a second drain valve (38) being arranged in the middle of the bottom surface of the filtrate bin (312); A PLC automatic control cabinet (4) is connected to the quantitative sampling device (2) and the filtering and washing device (3) via a wire.

2. The solid-liquid separation washing device according to claim 1, It is characterized in that The sampling assembly (22) comprises a sampling tube (221), the left end of the sampling tube (221) is connected to a sampling valve (222), and a sampling tube flushing valve (223) is provided on the right side of the sampling valve (222) and located in the middle of the sampling tube (221).

3. The solid-liquid separation washing device according to claim 2, It is characterized in that A sampling tank flushing valve (23), a sampling tank emptying valve (25) and a standby valve (26) are respectively arranged on the top of the primary quantitative sampling tank (21) from left to right. The sampling tank flushing valve (23) is used to connect to an external water source, the sampling tank emptying valve (25) is used to discharge the air in the primary quantitative sampling tank (21), and the standby valve (26) is used to connect to a negative pressure device.

4. The solid-liquid separation washing device according to claim 3, It is characterized in that A drain valve (27) is also provided at the bottom of the primary quantitative sampling tank (21). The drain valve (27) is used to discharge residual materials inside the primary quantitative sampling tank (21). The height of the drain valve (27) is lower than the material transfer valve (28).

5. The solid-liquid separation washing device according to claim 4, It is characterized in that The liquid level switch (212), the sampling valve (222), the sampling tube flushing valve (223), the sampling tank flushing valve (23), the sampling tank emptying valve (25), the standby valve (26), the drain valve (27) and the material transfer valve (28) are all connected to the PLC automatic control cabinet (4) via wires.

6. The solid-liquid separation washing device according to claim 1, It is characterized in that The top of the filter chamber (311) is provided with a second drain valve (32), a second pressure control valve (33) and a second automatic washing valve (34); the second drain valve (32) is used to discharge the internal gas of the secondary filter washing tank (31); the second pressure control valve (33) is used to connect to a pressurizing device; and the second automatic washing valve (34) is used to connect to an external water source.

7. The solid-liquid separation washing device according to claim 6, It is characterized in that A second liquid level switch (314) is provided on the left side of the filtering bin (311), and the second liquid level switch (314) is used to detect whether the liquid level inside the secondary filtering washing tank (31) meets the standard.

8. The solid-liquid separation washing device according to claim 7, It is characterized in that The second liquid level switch (314), the second drain valve (32), the second pressure control valve (33), the second automatic washing valve (34) and the second drain valve (38) are connected to the PLC automatic control cabinet (4) via wires.

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