Fly ash washing liquid heavy metal filtering and precipitating device

Abstract

The utility model relates to the technical field of incineration fly ash water washing liquid, and discloses a fly ash water washing liquid heavy metal filtering and precipitating device which comprises a precipitating bin and supporting legs, the two supporting legs are fixed to the bottom of the precipitating bin, and an ash inlet is formed in the end, away from the vertical central axis of the precipitating bin, of the left side of the top of the precipitating bin. A water inlet is formed in the end, close to the vertical central axis of the precipitation bin, of the right side of the top of the precipitation bin, a discharging pipe is arranged on the outer side of the precipitation bin, a water pump is fixed to the outer side of the precipitation bin, an upper circulating pipe is arranged at the output end of the water pump, and a lower circulating pipe is installed at the input end of the water pump; a detachable filter is arranged in the middle of the lower circulating pipe, and a cleaning assembly is mounted in the precipitation bin. The heavy metal filtering and precipitating device for the fly ash washing liquid can be used for regularly brushing and cleaning impurities left after precipitation in the device, and meanwhile, a circulating precipitation function can be realized during precipitation, so that the precipitation effect is relatively well improved.

Description

Technical Field

[0001] The utility model relates to the field of incineration fly ash water washing liquid, in particular to a fly ash water washing liquid heavy metal filtering and precipitation device. Background Art

[0002] Waste incineration fly ash is the capture of the flue gas purification system during the incineration of municipal domestic waste and the bottom ash settled at the bottom of the flue and chimney. These fine particles mainly come from the gasification process of organic matter in the flue gas, and also include the residues of substances such as limestone or activated carbon added during the flue gas purification process.

[0003] In the prior art, the fly ash treatment process adopts a method of landfilling after pretreatment with a solidifying agent, but this method wastes land resources, and improper treatment may lead to the dissolution of heavy metal substances and harm the environment. In order to solve the above problems, the prior art adopts a fly ash water washing sedimentation device and a high-temperature melting treatment method to treat the fly ash, wherein the fly ash water washing sedimentation device is used to precipitate and separate the sludge in the fly ash water washing liquid. However, long-term fly ash water washing will cause more impurities to accumulate inside the device, which will gradually affect the subsequent precipitation effect. Therefore, a fly ash water washing liquid heavy metal filtration and precipitation device is proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a fly ash water washing liquid heavy metal filtering and sedimentation device, which can regularly scrub and clean the impurities left over from the internal sedimentation, and at the same time can perform a circulating sedimentation function during sedimentation, thereby greatly improving the sedimentation effect.

[0006] Technical Solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A fly ash washing liquid heavy metal filtering and sedimentation device comprises a sedimentation bin and supporting legs, two sets of supporting legs are fixed to the bottom of the sedimentation bin, an ash inlet is arranged at one end of the top left side of the sedimentation bin away from the vertical central axis of the sedimentation bin, and a liquid medicine inlet is installed at one end of the top left side of the sedimentation bin close to the vertical central axis of the sedimentation bin, a water inlet is arranged at one end of the top right side of the sedimentation bin close to the vertical central axis of the sedimentation bin, and a discharge pipe is arranged on the outside of the sedimentation bin, and also comprises:

[0009] A water pump is fixed on the outside of the sedimentation bin, an upper circulation pipe is arranged at the output end of the water pump, a lower circulation pipe is installed at the input end of the water pump, a detachable filter is arranged in the middle of the lower circulation pipe, and a cleaning assembly is installed inside the sedimentation bin.

[0010] As a preferred technical solution of the utility model, a driving motor is arranged on the top of the sedimentation bin, and a connecting rod is arranged at the output end of the driving motor, fixing rods are arranged on both sides of the connecting rod, and both ends of the fixing rods are fixedly connected to the sedimentation bin.

[0011] As a preferred technical solution of the utility model, the cleaning assembly includes a cleaning plate arranged on the outside of the connecting rod, four groups of cleaning racks are fixed on the outside of the cleaning plate, and cleaning brushes are arranged on the outside of the four groups of cleaning racks.

[0012] As a preferred technical solution of the utility model, the connecting rod is threadedly connected to the cleaning plate, and the cleaning plate is slidably connected to the two sets of fixing rods respectively.

[0013] As a preferred technical solution of the utility model, the cleaning racks are arranged in four groups in a circular array based on the outer side of the cleaning plate.

[0014] As a preferred technical solution of the utility model, the cleaning brush is in contact with the inner surface of the sedimentation bin.

[0015] Beneficial Effects

[0016] Compared with the prior art, the utility model provides a fly ash water washing liquid heavy metal filtering and precipitation device, which has the following beneficial effects:

[0017] The fly ash water washing liquid heavy metal filtering and precipitation device passes through. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the top view of the cross-sectional structure of the connection between the sedimentation bin and the cleaning brush of the utility model;

[0020] Figure 3 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. sedimentation bin; 2. supporting legs; 3. ash inlet; 4. liquid medicine inlet; 5. water inlet; 6. discharge pipe; 7. water pump; 8. upper circulation pipe; 9. lower circulation pipe; 10. filter; 11. driving motor; 12. connecting rod; 13. fixing rod; 141. cleaning plate; 142. cleaning rack; 143. cleaning brush. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] In this example, see Figure 1 The utility model provides a technical solution: including a sedimentation bin 1 and support legs 2, wherein the sedimentation bin 1 is the shell of the existing production line equipment, and two groups of support legs 2 are fixed to the bottom of the sedimentation bin 1, and the support legs 2 are used to provide support for the sedimentation bin 1, and the number of support legs 2 can be increased in groups according to actual conditions;

[0025] An ash inlet 3 is provided at one end of the top left side of the sedimentation bin 1 away from the vertical center axis of the sedimentation bin 1, and the ash inlet 3 is used to discharge the fly ash from the outside into the interior of the sedimentation bin 1. A drug inlet 4 is installed at one end of the top left side of the sedimentation bin 1 close to the vertical center axis of the sedimentation bin 1, and the drug inlet 4 is used to inject the drug that reacts with the fly ash into the interior of the sedimentation bin 1;

[0026] A water inlet 5 is provided at one end of the top right side of the sedimentation bin 1 close to the vertical center axis of the sedimentation bin 1. The water inlet 5 is used to inject clean water from the outside into the interior of the sedimentation bin 1. A discharge pipe 6 is provided on the outside of the sedimentation bin 1. The discharge pipe 6 is used to discharge the processed impurities inside the sedimentation bin 1. The sedimentation bin 1 and the supporting legs 2 are both existing sedimentation equipment shells and supporting feet. The ash inlet 3, the liquid medicine inlet 4, the water inlet 5 and the discharge pipe 6 are all existing external pipes and drainage pipes. They can be installed according to the diagram using the existing fixing method. The above are all existing equipment and will not be elaborated on again.

[0027] For further information, see Figure 1A water pump 7 is fixed on the outside of the sedimentation bin 1. The water pump 7 is an existing water pump, and an upper circulation pipe 8 is provided at the output end of the water pump 7, and a lower circulation pipe 9 is installed at the input end of the water pump 7, so that the water pump 7 can extract the sewage inside the sedimentation bin 1 through the lower circulation pipe 9, and then discharge the filtered water source into the interior of the sedimentation bin 1 from the upper circulation pipe 8;

[0028] A detachable filter 10 is provided in the middle of the lower circulation pipe 9. The filter 10 is an existing filtering device, which is detachably connected to the lower circulation pipe 9, so that the filter 10 can be regularly inspected and replaced.

[0029] For further information, see Figure 1 and Figure 2 A driving motor 11 is disposed on the top of the sedimentation bin 1, and a connecting rod 12 is disposed at the output end of the driving motor 11, wherein the driving motor 11 is an existing driving motor, which is used to drive the connecting rod 12 to rotate;

[0030] Fixed rods 13 are provided on both sides of the connecting rod 12 , and both ends of the fixed rod 13 are fixedly connected to the sedimentation bin 1 , wherein the fixed rod 13 is used to provide a limiting function for the cleaning assembly outside the connecting rod 12 .

[0031] For further information, see Figure 1 , Figure 2 and Figure 3 A cleaning plate 141 is provided on the outside of the connecting rod 12, and four groups of cleaning racks 142 are fixed on the outside of the cleaning plate 141, and cleaning brushes 143 are provided on the outside of the four groups of cleaning racks 142, wherein the cleaning plate 141 is connected to the connecting rod 12 by threads, and the fixing rod 13 provides a limiting function for the cleaning plate 141, so that the cleaning plate 141 can be lifted and moved, and the cleaning plate 141 forms an integrated structure with the cleaning brush 143 through the four groups of cleaning racks 142, and the cleaning rack 142 is cross-shaped to provide a better fixing function for the cleaning brush 143, so that the cleaning brush 143 can be lifted and moved, so that the cleaning brush 143 can clean and scrub the inside of the sedimentation bin 1.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fly ash washing liquid heavy metal filtering and sedimentation device, comprising a sedimentation bin (1) and supporting legs (2), wherein two groups of supporting legs (2) are fixed to the bottom of the sedimentation bin (1), and an ash inlet (3) is provided at one end of the top left side of the sedimentation bin (1) away from the vertical center axis of the sedimentation bin (1), and a liquid medicine inlet (4) is installed at one end of the top left side of the sedimentation bin (1) close to the vertical center axis of the sedimentation bin (1), a water inlet (5) is provided at one end of the top right side of the sedimentation bin (1) close to the vertical center axis of the sedimentation bin (1), and a discharge pipe (6) is provided on the outside of the sedimentation bin (1), characterized in that: Also includes: A water pump (7) is fixed on the outside of the sedimentation bin (1), and an upper circulation pipe (8) is arranged at the output end of the water pump (7), and a lower circulation pipe (9) is installed at the input end of the water pump (7), and a detachable filter (10) is arranged in the middle of the lower circulation pipe (9), and a cleaning component is installed inside the sedimentation bin (1).

2. A fly ash water washing liquid heavy metal filtering and precipitation device according to claim 1, characterized in that: A driving motor (11) is arranged on the top of the sedimentation bin (1), and a connecting rod (12) is arranged at the output end of the driving motor (11), fixing rods (13) are arranged on both sides of the connecting rod (12), and both ends of the fixing rod (13) are fixedly connected to the sedimentation bin (1).

3. A fly ash water washing liquid heavy metal filtering and precipitation device according to claim 1, characterized in that: The cleaning assembly comprises a cleaning plate (141) arranged outside the connecting rod (12), four groups of cleaning racks (142) are fixed outside the cleaning plate (141), and cleaning brushes (143) are arranged outside the four groups of cleaning racks (142).

4. A fly ash water washing liquid heavy metal filtering and precipitation device according to claim 2, characterized in that: The connecting rod (12) is threadedly connected to the cleaning plate (141), and the cleaning plate (141) is slidably connected to the two sets of fixing rods (13) respectively.

5. A fly ash washing liquid heavy metal filtering and precipitation device according to claim 3, characterized in that: The cleaning racks (142) are arranged in four groups in a circular array based on the outer side of the cleaning plate (141).

6. A fly ash water washing liquid heavy metal filtering and precipitation device according to claim 3, characterized in that: The cleaning brush (143) is in contact with the inner surface of the sedimentation bin (1).

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