Full-automatic powder aqueous solution separation equipment

Abstract

The invention relates to the technical field of sewage treatment equipment, and discloses full-automatic powder aqueous solution separation equipment which comprises a raw water pool, a filter, a gas storage tank, a vacuum pump, an air heater and a backwashing water tank, the filter comprises a shell, a hollow filter layer and a water outlet pipe, and a slag discharge valve is arranged at the lower end of the shell; a shell water inlet, a shell water outlet and a shell water blowing opening are formed in the lower portion of the shell, the water outlet end of the raw water pool is connected with the shell water inlet through a first pipeline, a first water pump is arranged on the first pipeline, the hollow filter layer and the water outlet pipe are arranged in the shell, and the water outlet end of the hollow filter layer is connected with the water outlet pipe. The water outlet pipe extends out of the shell and is connected with the water inlet end of the raw water tank through a second pipeline; the full-automatic powder aqueous solution separation equipment provided by the invention solves the problems that the recovered powder is not pure and the equipment is easy to damage due to the fact that chemical reagents need to be added in existing sewage treatment.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment equipment, and in particular to a fully automatic powder-water solution separation device. Background Art

[0002] Existing sewage treatment requires the addition of chemical reagents. After adding chemical reagents, if powder recovery is carried out, it will be mixed with chemical reagents and the recovery purity will be reduced. If chemical reagents (acidic substances) are added in an improper proportion, it will cause acid corrosion to the equipment and cause equipment damage. Summary of the invention

[0003] The object of the present invention is to provide a fully automatic powder-water solution separation device to solve at least one of the above problems existing in the prior art.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A fully automatic powder-water solution separation device comprises a raw water pool, a filter, an air storage tank, a vacuum pump, a hot air blower and a backwash water tank, wherein the filter comprises a shell, a hollow filter layer and a water outlet pipe, a slag discharge valve is arranged at the lower end of the shell, a shell water inlet, a shell water outlet and a shell water blowing port are arranged at the lower part of the shell, a water outlet end of the raw water pool is connected to the shell water inlet through a first pipe, a first water pump is arranged on the first pipe, the hollow filter layer and the water outlet pipe are arranged in the shell, a water outlet end of the hollow filter layer is connected to the water outlet pipe, and the water outlet pipe is connected to the water inlet end of the raw water pool through a second pipe after extending out of the shell;

[0006] The upper part of the shell is provided with a shell overflow port and a shell air inlet, the gas tank is connected to the shell air inlet through a third pipe, the gas tank is connected to the air inlet end of the water outlet pipe through a first branch pipe and a second branch pipe respectively, the gas tank is connected to the shell water blowing port through a fifth pipe, the vacuum pump is connected to the second pipe through a sixth pipe, the hot air blower is connected to the hot air outlet of the shell through a seventh pipe, the shell overflow port is connected to the first water inlet of the backwash water tank through an eighth pipe, the shell water outlet is connected to the second water inlet of the backwash water tank through a ninth pipe, the water outlet of the backwash water tank is connected to the first pipe through a tenth pipe, and a second water pump is provided on the tenth pipe;

[0007] The first branch pipe is provided with an aeration valve, the second branch pipe is provided with a backwash air blowing valve, the first pipe is provided with a water inlet valve, the second pipe is provided with a water outlet valve, the third pipe is provided with an air intake valve, the fifth pipe is provided with a residual water blowing valve, the sixth pipe is provided with a vacuum valve, the seventh pipe is provided with a hot air valve, the eighth pipe is provided with an overflow valve, the ninth pipe is provided with a drain valve, and the tenth pipe is provided with a backwash valve.

[0008] In this technical solution, when sewage is in the raw water pool and starts working, the sewage in the raw water pool is transported to the filter through the first water pump and the first pipe. In the filter, the sewage is filtered through the hollow filter layer, and impurities (glass powder) remain outside the hollow filter layer. Clean water flows from the filter element of the hollow filter layer to the outlet pipe and flows back to the raw water pool through the second pipe. When a certain pressure is reached in the filter or the set time is reached, the impurities in the filter need to be cleaned. Specifically, the vacuum pump, vacuum valve and overflow valve are turned on, and the vacuum pump sucks water vapor in the filter. After a few minutes, the drain valve is opened. At the same time, the residual water valve and the air inlet valve are opened alternately to blow the residual water in the shell from the upper and lower parts of the shell respectively. The residual water in the shell is discharged through the filter. The air flows into the backwash water tank through the ninth pipe; when it is necessary to heat and dry the impurities, the hot air valve and the hot air blower are turned on for several minutes until the impurities are heated and dried; then aeration and slag discharge are carried out, the slag discharge valve is opened, and then the overflow valve is opened, the aeration valve is closed after opening for several seconds, the vacuum valve and the vacuum pump are opened, and then closed after several seconds, and the aeration valve and the vacuum valve vacuum pump are opened and closed alternately twice to achieve aeration and slag discharge; when backwashing is required, the overflow valve, the second water pump and the backwash valve are opened for several seconds, and then the first water pump and the water inlet valve are opened until the liquid level in the filter reaches the set value, and then the overflow valve, the second water pump, the backwash valve, the first water pump and the water inlet valve are closed, and then the backwash air valve is opened for several seconds and then all valves are closed to complete the backwashing operation.

[0009] In summary, this technical solution uses a hot air blower to deliver hot air to the filter, the impurities in the filter are heated and dried, the vacuum pump absorbs water vapor, and then the gas tank is instantly pressurized, and the dry powder impurities are discharged from the slag discharge valve at the lower end of the filter. Backwashing is automatically performed after the entire process is completed. After the entire filtration of the hollow filter layer is completed, there is still impurity mud, which is backwashed through the backwash water tank. The hollow filter layer adopts pure physical filtration without adding any chemical reagents, so there is no need to worry about the impact of the acidity and alkalinity caused by chemical reagents on the equipment. By using the principles of negative pressure and heating, anhydrous dry powder is finally obtained and the dry powder can be discharged, with high filtration efficiency. The water is directly pumped from the original water pool to the filter, and the clean water flows back to the original water pool. The sludge remains in the filter, continuously reducing the powder in the original water pool, eliminating the need for manual cleaning of sediment in the sewage pool, and facilitating powder recovery.

[0010] Furthermore, in order to detect the amount of water entering the housing, a liquid level switch is provided in the housing.

[0011] Furthermore, in order to improve the filtering efficiency, a plurality of hollow filter layers are provided in the shell, and the water outlet ends of the plurality of hollow filter layers are all connected to the water outlet pipe.

[0012] Furthermore, in order to detect the pressure in the filter, an electric contact pressure switch is provided on the top of the housing.

[0013] Furthermore, in order to improve the heating effect, the shell is connected to two seventh pipes, and the seventh pipes are connected to the hot air blower.

[0014] Furthermore, in order to detect the water flow rate, a flow meter is provided on the second pipe.

[0015] Furthermore, a drain detection device is provided on the shell below the water outlet pipe to detect whether the water in the shell is drained.

[0016] Furthermore, in order to detect the liquid level height, liquid level switches are provided in the raw water tank and the backwash water tank.

[0017] The beneficial effects of the present invention are as follows: in this technical solution, sewage is in the raw water pool. When the operation starts, the sewage in the raw water pool is transported to the filter through the first water pump and the first pipe. In the filter, the sewage is filtered through the hollow filter layer, and impurities (glass powder) remain outside the hollow filter layer. Clean water flows from the filter element of the hollow filter layer into the outlet pipe and flows back to the raw water pool through the second pipe. When a certain pressure is reached in the filter or a set time is reached, the impurities in the filter need to be cleaned. Specifically, the vacuum pump, the vacuum valve and the overflow valve are turned on. The vacuum pump sucks water vapor from the filter. After a few minutes, the drain valve is opened. At the same time, the residual water valve and the air inlet valve are opened alternately to blow the residual water in the outer shell from the upper and lower parts of the outer shell respectively. The residual water in the shell flows into the backwash water tank through the ninth pipe; when it is necessary to heat and dry the impurities, the hot air valve and the hot air blower are opened for several minutes until the impurities are heated and dried; then aeration and slag discharge are carried out, the slag discharge valve is opened, and then the overflow valve is opened, the aeration valve is opened for several seconds and then closed, the vacuum valve and the vacuum pump are opened and then closed after several seconds, and the aeration valve and the vacuum valve vacuum pump are opened and closed alternately twice to achieve aeration and slag discharge; when backwashing is required, the overflow valve, the second water pump and the backwash valve are opened for several seconds, and then the first water pump and the water inlet valve are opened until the liquid level in the filter reaches the set value, and then the overflow valve, the second water pump, the backwash valve, the first water pump and the water inlet valve are closed, and then the backwash air valve is opened for several seconds and then all valves are closed to complete the backwashing operation.

[0018] In summary, this technical solution uses a hot air blower to deliver hot air to the filter, the impurities in the filter are heated and dried, the vacuum pump absorbs water vapor, and then the gas tank is instantly pressurized, and the dry powder impurities are discharged from the slag discharge valve at the lower end of the filter. Backwashing is automatically performed after the entire process is completed. After the entire filtration of the hollow filter layer is completed, there is still impurity mud, which is backwashed through the backwash water tank. The hollow filter layer adopts pure physical filtration without adding any chemical reagents, so there is no need to worry about the impact of the acidity and alkalinity caused by chemical reagents on the equipment. By using the principles of negative pressure and heating, anhydrous dry powder is finally obtained and the dry powder can be discharged, with high filtration efficiency. The water is directly pumped from the original water pool to the filter, and the clean water flows back to the original water pool. The sludge remains in the filter, continuously reducing the powder in the original water pool, eliminating the need for manual cleaning of sediment in the sewage pool, and facilitating powder recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the invention.

[0020] In the figure: raw water pool 1; gas storage tank 2; vacuum pump 3; hot air blower 4; backwash water tank 5; shell 6; hollow filter layer 7; water outlet pipe 8; slag discharge valve 9; shell water inlet 10; shell water outlet 11; shell water blowing port 12; first pipeline 13; first water pump 14; shell overflow port 15; shell air inlet 16; third pipeline 17; first branch pipe 18; second branch pipe 19; fifth pipeline 20; sixth pipeline 21; seventh pipeline 22; eighth pipeline 23; ninth pipeline 24; tenth pipeline 25; second water pump 26; aeration valve 27; backwash air blowing valve 28; water inlet valve 29; second pipeline 30; water outlet valve 31; air inlet valve 32; residual water blowing valve 33; vacuum valve 34; hot air valve 35; overflow valve 36; drain valve 37; backwash valve 38; liquid level switch 39; electric contact pressure switch 40; emptying detection device 41; flow meter 42. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0022] Embodiment 1:

[0023] like Figure 1As shown, this embodiment provides a fully automatic powder-water solution separation device, including a raw water tank 1, a filter, an air storage tank 2, a vacuum pump 3, a hot air blower 4 and a backwash water tank 5, the filter includes a shell 6, a hollow filter layer 7 and a water outlet pipe 8, a slag discharge valve 9 is provided at the lower end of the shell 6, a shell water inlet 10, a shell water outlet 11 and a shell water blowing port 12 are provided at the lower part of the shell 6, the water outlet end of the raw water tank 1 is connected to the shell water inlet 10 through a first pipe 13, a first water pump 14 is provided on the first pipe 13, the hollow filter layer 7 and the water outlet pipe 8 are arranged in the shell 6, the water outlet end of the hollow filter layer 7 is connected to the water outlet pipe 8, and the water outlet pipe 8 is connected to the water inlet end of the raw water tank 1 through a second pipe 30 after extending out of the shell 6;

[0024] The upper part of the shell 6 is provided with a shell overflow port 15 and a shell air inlet 16, the gas storage tank 2 is connected to the shell air inlet 16 through a third pipe 17, the gas storage tank 2 is connected to the air inlet end of the water outlet pipe 8 through a first branch pipe 18 and a second branch pipe 19 respectively, the gas storage tank 2 is connected to the shell water blowing port 12 through a fifth pipe 20, the vacuum pump 3 is connected to the second pipe 30 through a sixth pipe 21, the hot air blower 4 is connected to the hot air outlet of the shell 6 through a seventh pipe 22, the shell overflow port 15 is connected to the first water inlet of the backwash water tank 5 through an eighth pipe 23, the shell water outlet 11 is connected to the second water inlet of the backwash water tank 5 through a ninth pipe 24, the water outlet of the backwash water tank 5 is connected to the first pipe 13 through a tenth pipe 25, and a second water pump 26 is provided on the tenth pipe 25;

[0025] The first branch pipe 18 is provided with an aeration valve 27, the second branch pipe 19 is provided with a backwash air blowing valve 28, the first pipe 13 is provided with a water inlet valve 29, the second pipe 30 is provided with a water outlet valve 31, the third pipe 17 is provided with an air intake valve 32, the fifth pipe 20 is provided with a residual water blowing valve 33, the sixth pipe 21 is provided with a vacuum valve 34, the seventh pipe 22 is provided with a hot air valve 35, the eighth pipe 23 is provided with an overflow valve 36, the ninth pipe 24 is provided with a drain valve 37, and the tenth pipe 25 is provided with a backwash valve 38.

[0026] In the technical solution, the sewage is in the raw water pool. When the operation starts, the sewage in the raw water pool 1 is transported to the filter through the first water pump 14 and the first pipe 13. In the filter, the sewage is filtered through the hollow filter layer 7, and the impurities (glass powder) remain outside the hollow filter layer 7. Clean water flows from the filter element of the hollow filter layer 7 to the outlet pipe 8, and flows back to the raw water pool 1 through the second pipe 30. When a certain pressure is reached in the filter or a set time is reached, the impurities in the filter need to be cleaned. Specifically, the vacuum pump 3, the vacuum valve 34 and the overflow valve 36 are turned on. The vacuum pump 3 sucks water vapor from the filter. After a few minutes, the drain valve 37 is opened. At the same time, the residual water valve 33 and the air inlet valve 32 are opened alternately to blow the residual water in the shell 6 from the upper and lower parts of the shell 6 respectively. The residual water in the shell 6 is discharged through the ninth pipe 24. Flows into the backwash water tank 5; when it is necessary to heat and dry the impurities, the hot air valve 35 and the hot air blower 4 are opened for several minutes until the impurities are heated and dried; then aeration and slag discharge are carried out, the slag discharge valve 9 is opened, and then the overflow valve 36 is opened, the aeration valve 27 is opened for several seconds and then closed, the vacuum valve 34 and the vacuum pump 3 are opened and then closed after several seconds, and the aeration valve 27 and the vacuum valve 34 and the vacuum pump 3 are opened and closed alternately twice to achieve aeration and slag discharge; when backwashing is required, the overflow valve 36, the second water pump 26 and the backwash valve 38 are opened for several seconds, and then the first water pump 14 and the water inlet valve 29 are opened until the liquid level in the filter reaches the set value, and then the overflow valve 36, the second water pump 26, the backwash valve 38, the first water pump 14 and the water inlet valve 29 are closed, and then the backwash air valve 28 is opened for several seconds and then all valves are closed to complete the backwashing operation.

[0027] In summary, the technical solution uses a hot air blower 4 to deliver hot air to the filter, the impurities in the filter are heated and dried, the vacuum pump 3 absorbs water vapor, and then the gas tank 2 is instantly pressurized, and the dry powder impurities are discharged from the slag discharge valve 9 at the lower end of the filter. Backwashing is automatically performed after the entire process is completed. After the entire filtration of the hollow filter layer 7 is completed, there is still impurity mud, which is backwashed through the backwash water tank 5. The hollow filter layer 7 adopts pure physical filtration without adding any chemical reagents, so there is no need to worry about the impact of the acidity and alkalinity caused by chemical reagents on the equipment. By using the negative pressure and heating principles, anhydrous dry powder is finally obtained and the dry powder can be discharged. The filtration efficiency is high and more than 95% of the powder can be filtered. The filter is directly pumped from the original water pool 1, and the clean water flows back to the original water pool 1. The sludge remains in the filter, continuously reducing the powder in the original water pool 1, eliminating the need for manual cleaning of sediment in the sewage pool, and facilitating powder recovery.

[0028] Embodiment 2:

[0029] This embodiment is optimized based on the above-mentioned embodiment 1.

[0030] In order to detect the amount of water entering the housing 6 , a liquid level switch 39 is provided in the housing 6 .

[0031] Embodiment 3:

[0032] This embodiment is optimized based on the above-mentioned embodiment 1.

[0033] In order to improve the filtering efficiency, a plurality of hollow filter layers 7 are provided in the outer shell 6 , and the water outlet ends of the plurality of hollow filter layers 7 are all connected to the water outlet pipe 8 .

[0034] Embodiment 4:

[0035] This embodiment is optimized based on the above-mentioned embodiment 1.

[0036] In order to detect the pressure in the filter, an electric contact pressure switch 40 is provided on the top of the housing 6 .

[0037] Embodiment 5:

[0038] This embodiment is optimized based on the above-mentioned embodiment 1.

[0039] In order to improve the heating effect, the outer shell 6 is connected to two seventh pipes 22 , and the seventh pipes 22 are connected to the hot air blower 4 .

[0040] Embodiment 6:

[0041] This embodiment is optimized based on the above-mentioned embodiment 1.

[0042] In order to detect the water flow rate, a flow meter 42 is provided on the second pipe 30 .

[0043] Embodiment 7:

[0044] This embodiment is optimized based on the above-mentioned embodiment 1.

[0045] An emptying detection device 41 is provided on the housing 6 below the water outlet pipe 8 for detecting whether the water in the housing 6 is empty.

[0046] Embodiment 8:

[0047] This embodiment is optimized based on the above-mentioned embodiment 1.

[0048] In order to detect the liquid level, a liquid level switch 39 is provided in both the raw water tank 1 and the backwash water tank 5 .

[0049] Workflow:

[0050] 1. Start-up work:

[0051] The first water pump 14, the water inlet valve 29, the water outlet valve 31 and the overflow valve 36 are turned on, and the overflow valve 36 is closed after the liquid level switch 39 senses that the water is full, and the water outlet flow is observed through the flow meter 42 to ensure that the water outlet flow reaches the set requirement and continues to work.

[0052] 2. The first water pump 14 pumps water:

[0053] The first water pump 14 is a variable frequency water pump, and the speed of the variable frequency water pump is adjusted according to the flow rate to ensure a stable water output.

[0054] 3. Two ways to end a loop:

[0055] After the electric contact pressure switch 40 reaches the set upper pressure limit, the equipment is shut down and all valves are closed.

[0056] Time control (automatically shuts down after the set minutes have passed) The equipment shuts down and all valves are closed.

[0057] 4. Drainage:

[0058] After the air inlet valve 32, the water outlet valve 31 and the drain valve 37 are opened for a set time, the residual water valve 33 and the air inlet valve 32 are opened alternately for a set time, the emptying detection device 41 performs emptying detection confirmation, and all valves are closed.

[0059] 5. Vacuum pump 3 absorbs water vapor and heats and dries:

[0060] After the vacuum pump 3, vacuum valve 34, and breathing valve (overflow valve 36) are opened for a set time, the drain valve 37 is opened, the residual water valve 33 and the air intake valve 32 are alternately opened for a set time, and then the residual water valve 33, the air intake valve 32, and the drain valve 37 are closed. The first group of hot air valves 35 and the hot air blower 4 are opened for a set time, and then the second group of hot air valves 35 and the hot air blower 4 are opened for a set time. Both groups of hot air valves 35 and the hot air blower 4 are closed, waiting for the set time, and all equipment shutdown valves are closed.

[0061] 6. Aeration and slag removal:

[0062] After the slag discharge valve 9 is opened for 2 seconds, the breathing valve (relief valve 36) is opened. The aeration valve 27 is opened for a set time and then closed. The vacuum valve 34 and the vacuum pump 3 are opened for a set time and then closed. The cycle is repeated twice, and all equipment shutdown valves are closed.

[0063] 7. Backwash:

[0064] After the overflow valve 36, the second water pump 26 and the backwash valve 38 are opened for a set time, the first water pump 14 and the water inlet valve 29 are opened. After the liquid level switch 39 senses that the water is full, the first water pump 14, the water inlet valve 29, the overflow valve 36, the second water pump 26 and the backwash valve 38 are closed. Then, the backwash air valve 28 is opened for a set time and all valves are closed.

[0065] This technical solution uses a purely physical method to separate powder and water, and can process impurities into pure dry powder. The powder can be recycled or landfilled as garbage, and the filtered water can be reused. No chemical agents are required, which saves costs, is not doped with chemical reagents, and can be recycled. Vacuum negative pressure heating for 35 minutes, at least 6Kg of dry powder can be processed at a time, and one control system can be used with two filtration systems to achieve uninterrupted continuous working mode, and the dry powder processing capacity is >6Kg / h. Preferably, the housing 6 of the filter is made of 304# stainless steel and sealed and welded.

[0066] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fully automatic powder-water solution separation device, characterized in that: It includes a raw water pool, a filter, an air storage tank, a vacuum pump, a hot air blower and a backwash water tank, wherein the filter includes a shell, a hollow filter layer and a water outlet pipe, the lower end of the shell is provided with a slag discharge valve, the lower part of the shell is provided with a shell water inlet, a shell water outlet and a shell water blowing port, the water outlet end of the raw water pool is connected with the shell water inlet through a first pipe, the first pipe is provided with a first water pump, the hollow filter layer and the water outlet pipe are arranged in the shell, the water outlet end of the hollow filter layer is connected with the water outlet pipe, and the water outlet pipe is connected with the water inlet end of the raw water pool through a second pipe after extending out of the shell; The upper part of the shell is provided with a shell overflow port and a shell air inlet, the gas tank is connected to the shell air inlet through a third pipe, the gas tank is connected to the air inlet end of the water outlet pipe through a first branch pipe and a second branch pipe respectively, the gas tank is connected to the shell water blowing port through a fifth pipe, the vacuum pump is connected to the second pipe through a sixth pipe, the hot air blower is connected to the hot air outlet of the shell through a seventh pipe, the shell overflow port is connected to the first water inlet of the backwash water tank through an eighth pipe, the shell water outlet is connected to the second water inlet of the backwash water tank through a ninth pipe, the water outlet of the backwash water tank is connected to the first pipe through a tenth pipe, and a second water pump is provided on the tenth pipe; The first branch pipe is provided with an aeration valve, the second branch pipe is provided with a backwash air blowing valve, the first pipe is provided with a water inlet valve, the second pipe is provided with a water outlet valve, the third pipe is provided with an air intake valve, the fifth pipe is provided with a residual water blowing valve, the sixth pipe is provided with a vacuum valve, the seventh pipe is provided with a hot air valve, the eighth pipe is provided with an overflow valve, the ninth pipe is provided with a drain valve, and the tenth pipe is provided with a backwash valve.

2. The fully automatic powder-water solution separation equipment according to claim 1, characterized in that: A liquid level switch is arranged in the shell.

3. The fully automatic powder-water solution separation equipment according to claim 1, characterized in that: A plurality of hollow filter layers are arranged in the shell, and the water outlet ends of the plurality of hollow filter layers are all connected to the water outlet pipe.

4. The fully automatic powder-water solution separation equipment according to claim 1, characterized in that: An electric contact pressure switch is arranged on the top of the shell.

5. The fully automatic powder-water solution separation equipment according to claim 1, characterized in that: The shell is connected with two seventh pipes, and the seventh pipes are connected with the hot air blower.

6. The fully automatic powder-water solution separation equipment according to claim 1, characterized in that: The second pipeline is provided with a flow meter.

7. The fully automatic powder-water solution separation equipment according to claim 1, characterized in that: An emptying detection device is provided on the shell below the water outlet pipe.

8. The fully automatic powder-water solution separation equipment according to claim 1, characterized in that: Liquid level switches are provided in the raw water tank and the backwash water tank.

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