A leaching equipment for treating heavy metals in sludge

Abstract

The present invention discloses a rinsing device for treating heavy metals in sludge, comprising a rinsing arm, which is composed of one or more sections of spraying components; an adjusting device, which is used to adjust the height of the rinsing arm to achieve control of the spraying range of the rinsing liquid; and a water supply device, which is used to provide rinsing liquid to the rinsing arm and has a certain liquid pressure so that the rinsing liquid is sprayed through the spraying component. In this rinsing device for treating heavy metals in sludge, the rinsing arm is composed of one or more sections of spraying components, and the spraying range of the rinsing liquid can be adjusted according to usage requirements. The control of the spraying range of the rinsing liquid is achieved through the adjusting device. When the number of nozzles in the spraying component is large and the rinsing arm is long, the height of the rinsing arm can be increased so that the rinsing liquid sprayed from the nozzle covers a larger area.

Description

Technical Field

[0001] The invention relates to the technical field of sludge treatment, in particular to a leaching device for treating heavy metals in sludge. Background Art

[0002] Chemical leaching technology can quickly remove heavy metals from sludge with stable effects and relatively low costs. It is the most common soil heavy metal remediation technology currently in practical application.

[0003] Chemical leaching technology utilizes chemical solvents that promote the dissolution or migration of pollutants in the soil environment. Leaching fluid is injected into the contaminated soil layer under the action of gravity or hydraulic pressure. The liquid containing pollutants is then extracted from the soil layer for separation and wastewater treatment. Existing technology uses spraying equipment to apply the leaching fluid to the sludge to be treated. However, most existing spraying equipment is fixed and cannot control the leaching range based on the sludge distribution area, resulting in waste of leaching fluid. Therefore, we propose a leaching device for treating heavy metals in sludge. Summary of the Invention

[0004] The object of the present invention is to provide a leaching device for treating heavy metals in sludge to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rinsing device for treating heavy metals in sludge, comprising a rinsing arm, which is composed of one or more spraying assemblies; an adjusting device, which is used to adjust the height of the rinsing arm to achieve control of the spraying range of the rinsing liquid; a water supply device, which is used to provide rinsing liquid to the rinsing arm and has a certain liquid pressure so that the rinsing liquid is sprayed out through the spraying assembly.

[0006] Preferably, the adjusting device includes a water pipe and a driving device, the water pipe is connected to the shower arm and the water supply device respectively, and the shower arm is fixed on the water pipe, and the driving device is used to raise and lower the height of the water pipe, thereby realizing the adjustment of the height of the shower arm.

[0007] Preferably, the spray assembly includes a water spray pipe, a nozzle and a splicing assembly. The water spray pipe on the spray assembly located at one end of the shower arm is connected to the water supply pipe and fixed on the water supply pipe. Multiple groups of water spray pipes on the spray assemblies are connected at one time through the splicing assembly. The nozzle is fixed on the water spray pipe and connected to the water spray pipe.

[0008] Preferably, the rinsing arms are provided in multiple groups, and the multiple groups of rinsing arms are located on the same horizontal plane and distributed at equal angles on the outside of the water pipe.

[0009] Preferably, the splicing assembly includes a sealing member and an opening member, and the sealing member and the opening member are respectively fixed to the ends of the water spray pipes on two adjacent spray assemblies, and the sealing member includes a fixing plate, a sealing spring, a limiting rod, a sealing plate and a sealing ring. The fixing plate is fixed to the inner wall of the water spray pipe, and a plurality of first water leakage holes are provided on the fixing plate. One end of the sealing spring is fixed to the fixing plate, and the other end is fixed to the sealing plate. The diameter of the sealing plate is smaller than the inner diameter of the water spray pipe. The sealing ring is fixed to the end of the water spray pipe, and the sealing ring is fixed to the end of the water spray pipe. The diameter is larger than the inner diameter of the sealing ring, one end of the limit rod is fixed to the sealing plate, and the other end passes through the fixed plate and is slidably connected to the fixed plate. The opening part includes a leakage pipe and a connecting pipe. The diameter of the leakage pipe is smaller than the inner diameter of the water spray pipe. A second leakage hole is provided on the leakage pipe. One end of the leakage pipe is fixed to the connecting pipe and communicated with the connecting pipe. One end of the connecting pipe is provided with an external thread, and the inner side of the sealing ring is provided with an internal thread. The connecting pipe is threadedly connected to the sealing ring, and one end of the connecting pipe is fixed to the adjacent water spray pipe.

[0010] Preferably, a limiting ring is fixedly sleeved on the connecting pipe, and a first sealing gasket is fixed on a side of the limiting ring close to the sealing ring.

[0011] Preferably, a second sealing gasket is fixed to a side of the sealing plate close to the sealing ring.

[0012] Preferably, the driving device includes an adjusting cylinder, an adjusting block, a base, a bearing seat, a limiting tube and a power assembly. The adjusting cylinder is sleeved on the outside of the water pipe, and the bottom end is rotatably connected to the base through the bearing seat. The adjusting block is fixed to the bottom end of the water pipe. The outside of the adjusting block is provided with an external thread, and the inside of the adjusting cylinder is provided with an internal thread. The adjusting block is threadedly connected to the adjusting cylinder, and at least one plane is provided on the outside of the limiting tube. The limiting tube passes through the adjusting block and the base, and is slidably connected to the adjusting block and fixedly connected to the base. The top of the limiting tube is connected to the inside of the water pipe, and the bottom end is connected to the water supply device. The power assembly is used to drive the adjusting cylinder to rotate.

[0013] Preferably, a sealing sleeve is fixed at the connection between the adjusting block and the limiting tube.

[0014] Preferably, the power assembly includes a motor, a first pulley, a second pulley and a V-belt, the motor is fixed on the base, the first pulley is fixed on the output shaft of the motor, and the first pulley is connected to the second pulley through a V-belt, and the second pulley is fixedly sleeved on the adjusting cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The shower arm of the present invention is composed of one or more spraying components. The spraying range of the shower liquid can be adjusted according to usage requirements. The spraying range of the shower liquid is controlled by an adjusting device. When the number of nozzles in the spraying assembly is large and the shower arm is long, the height of the shower arm can be increased so that the shower liquid sprayed from the nozzle covers a larger area, thereby reducing the waste of the shower liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic structural diagram of the regulating device of the present invention;

[0019] Figure 3 This is a schematic diagram of the spray assembly structure of the present invention;

[0020] Figure 4 for Figure 1 Enlarged view of area A in the middle;

[0021] Figure 5 for Figure 2 Enlarged view of area B in the middle;

[0022] Figure 6 for Figure 3 Enlarged view of area C in the middle;

[0023] Figure 7 for Figure 6 Enlarged view of area D in the middle.

[0024] In the figure: 1-rinsing arm; 2-spraying assembly; 3-adjusting device; 5-water supply pipe; 6-driving device; 7-water spraying pipe; 8-spraying head; 9-splicing assembly; 10-sealing member; 11-opening member; 12-fixing plate; 13-sealing spring; 14-limiting rod; 15-sealing plate; 16-sealing ring; 17-first water leakage hole; 18-water leakage pipe; 19-connecting pipe; 20-second water leakage hole; 21-limiting ring; 22-first sealing gasket; 23-second sealing gasket; 24-adjusting cylinder; 25-adjusting block; 26-base; 27-bearing seat; 28-limiting pipe; 29-power assembly; 30-motor; 31-first pulley; 32-second pulley; 33-V-belt. Implementation Method

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0026] See also Figure 1 , this embodiment provides a technical solution: a leaching device for treating heavy metals in sludge, comprising a leaching arm 1, wherein the leaching arm 1 is composed of one or more spraying assemblies 2, and the spraying range of the leaching liquid can be adjusted according to the use requirements;

[0027] The adjusting device 3 is used to adjust the height of the elution arm 1 to control the spray range of the eluent. When the number of nozzles 8 in the spray assembly 2 is large and the elution arm 1 is long, the height of the elution arm 1 can be raised so that the eluent sprayed from the nozzles 8 covers a larger area;

[0028] The water supply device is used to provide eluent to the eluent arm 1 and has a certain liquid pressure so that the eluent is sprayed out through the spray assembly 2. The water supply device adopts an existing pump assembly to realize the function of providing eluent. Example 2

[0029] See also Figure 3 、 Figure 6 and Figure 7 This embodiment discloses a spray assembly, wherein the spray assembly 2 includes a water spray pipe 7, a nozzle 8 and a splicing assembly 9. The water spray pipe 7 on the spray assembly 2 located at one end of the shower arm 1 is connected to the water supply pipe 5 and fixed on the water supply pipe 5. Multiple groups of water spray pipes 7 on the spray assembly 2 are connected at one time through the splicing assembly 9. The nozzle 8 is fixed on the water spray pipe 7 and connected to the water spray pipe 7.

[0030] The rinsing arms 1 are provided in multiple groups, and the multiple groups of rinsing arms 1 are located on the same horizontal plane and distributed at equal angles on the outside of the water pipe 5, so that the rinsing equipment covers a wider area.

[0031] The splicing assembly 9 includes a sealing member 10 and an opening member 11, and the sealing member 10 and the opening member 11 are respectively fixed to the ends of the water spray pipes 7 on the two adjacent spray assemblies 2, and the sealing member 10 includes a fixing plate 12, a sealing spring 13, a limiting rod 14, a sealing plate 15 and a sealing ring 16. The fixing plate 12 is fixed to the inner wall of the water spray pipe 7, and a plurality of first water leakage holes 17 are provided on the fixing plate 12. One end of the sealing spring 13 is fixed to the fixing plate 12, and the other end is fixed to the sealing plate 15. The diameter of the sealing plate 15 is smaller than the inner diameter of the water spray pipe 7. The sealing ring 16 is fixed to the end of the water spray pipe 7, and the sealing ring 16 is The diameter is larger than the inner diameter of the sealing ring 16, one end of the limit rod 14 is fixed to the sealing plate 15, and the other end passes through the fixed plate 12 and is slidably connected to the fixed plate 12. The opening member 11 includes a leakage pipe 18 and a connecting pipe 19. The diameter of the leakage pipe 18 is smaller than the inner diameter of the water spray pipe 7. The leakage pipe 18 is provided with a second leakage hole 20. One end of the leakage pipe 18 is fixed to the connecting pipe 19 and communicates with the connecting pipe 19. One end of the connecting pipe 19 is provided with an external thread, and the inner side of the sealing ring 16 is provided with an internal thread. The connecting pipe 19 is threadedly connected to the sealing ring 16, and one end of the connecting pipe 19 is fixed to the adjacent water spray pipe 7.

[0032] During splicing, the leakage pipe 18 is passed through the sealing ring 16 and abutted against the sealing plate 15, and pressure is applied to the sealing plate 15 to separate the sealing plate 15 from the sealing ring 16. After the leakage pipe 18 is pushed a certain distance into the water spray pipe 7, the connecting pipe 19 is rotated to make it threadedly connected to the sealing ring 16, and the splicing of adjacent water spray pipes 7 can be achieved. At this time, the eluent can flow between the adjacent water spray pipes 7 through the first leakage hole 17 and the second leakage hole 20.

[0033] When the water spray pipe 7 at the end does not need to be further spliced, the sealing plate 15 abuts against the sealing ring 16 under the elastic force of the sealing spring 13 to achieve sealing of the water spray pipe 7 at the end of the rinsing arm 1 .

[0034] A limiting ring 21 is fixedly sleeved on the connecting pipe 19 , and a first sealing gasket 22 is fixed on a side of the limiting ring 21 close to the sealing ring 16 , thereby improving the sealing performance of the connection between the connecting pipe 19 and the sealing ring 16 .

[0035] A second sealing gasket 23 is fixed to one side of the sealing plate 15 close to the sealing ring 16, thereby improving the sealing performance of the connection between the sealing plate 15 and the sealing ring 16. Example 3

[0036] See also Figure 2 、 Figure 4 and Figure 5This embodiment discloses an adjusting device, wherein the adjusting device 3 includes a water pipe 5 and a driving device 6. The water pipe 5 is connected to the rinsing arm 1 and the water supply device respectively, and the rinsing arm 1 is fixed on the water pipe 5. The driving device 6 is used to raise and lower the height of the water pipe 5, thereby realizing the adjustment of the height of the rinsing arm 1.

[0037] The driving device 6 includes an adjusting cylinder 24, an adjusting block 25, a base 26, a bearing seat 27, a limiting tube 28 and a power assembly 29. The adjusting cylinder 24 is sleeved on the outside of the water pipe 5, and the bottom end is rotatably connected to the base 26 through the bearing seat 27. The adjusting block 25 is fixed to the bottom end of the water pipe 5. The outer side of the adjusting block 25 is provided with an external thread, and the inner side of the adjusting cylinder 24 is provided with an internal thread. The adjusting block 25 is threadedly connected to the adjusting cylinder 24. At least one plane is provided on the outer side of the limiting tube 28. The limiting tube 28 passes through the adjusting block 25 and the base 26, and is slidably connected to the adjusting block 25 and fixedly connected to the base 26. The top of the limiting tube 28 is connected to the inside of the water pipe 5, and the bottom end is connected to the water supply device. The power assembly 29 is used to drive the adjusting cylinder 24 to rotate.

[0038] The power device drives the adjustment cylinder 24 to rotate. The adjustment block 25 and the water supply pipe 5 do not rotate with the adjustment cylinder 24 due to the limiting effect of the limiting pipe 28. Because the adjustment block 25 is threadedly connected to the adjustment cylinder 24, the rotation of the adjustment cylinder 24 drives the adjustment block 25 to rise or fall, thereby adjusting the height of the rinse arm 1. A sealing sleeve is fixed at the connection between the adjustment block 25 and the limiting pipe 28, which improves the sealing of the connection between the limiting pipe 28 and the adjustment block 25.

[0039] The power assembly 29 includes a motor 30, a first pulley 31, a second pulley 32 and a V-belt 33. The motor 30 is fixed on the base 26. The first pulley 31 is fixed on the output shaft of the motor 30, and the first pulley 31 is connected to the second pulley 32 through the V-belt 33. The second pulley 32 is fixedly sleeved on the adjusting cylinder 24. The rotation of the output shaft of the motor 30 can drive the rotation of the first pulley 31. The first pulley 31 drives the rotation of the second pulley 32 through the V-belt 33, thereby driving the rotation of the adjusting cylinder 24.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A leaching device for treating heavy metals in sludge, characterized by: include: A rinsing arm (1), wherein the rinsing arm (1) is composed of one or more spraying assemblies (2) spliced ​​together; An adjusting device (3), wherein the adjusting device (3) is used to adjust the height of the elution arm (1) to achieve control over the spraying range of the elution liquid; A water supply device, the water supply device is used to provide eluent to the rinsing arm (1), and has a certain liquid pressure so that the eluent is sprayed out through the spray assembly (2); the regulating device (3) includes a water pipe (5) and a driving device (6), the water pipe (5) is connected to the rinsing arm (1) and the water supply device respectively, and the rinsing arm (1) is fixed on the water pipe (5), and the driving device (6) is used to raise and lower the height of the water pipe (5), thereby achieving adjustment of the height of the rinsing arm (1); the spray assembly (2) includes a water spray pipe (7), a nozzle (8) and a splicing assembly (9), and the nozzle on the spray assembly (2) at one end of the rinsing arm (1) is connected to the water supply device. The water pipe (7) is connected to the water pipe (5) and fixed on the water pipe (5). The water pipes (7) on the multiple groups of the spraying assemblies (2) are connected at one time through the splicing assembly (9). The nozzle (8) is fixed on the water pipe (7) and connected to the water pipe (7). The shower arm (1) is provided with multiple groups. The multiple groups of shower arms (1) are located on the same horizontal plane and are distributed at equal angles on the outside of the water pipe (5). The splicing assembly (9) includes a sealing member (10) and an opening member (11). The sealing member (10) and the opening member (11) are respectively fixed to the ends of the water pipes (7) on two adjacent spraying assemblies (2). The sealing member (10) The invention comprises a fixing plate (12), a sealing spring (13), a limiting rod (14), a sealing plate (15) and a sealing ring (16), wherein the fixing plate (12) is fixed on the inner wall of the water spray pipe (7), and a plurality of first water leakage holes (17) are provided on the fixing plate (12), one end of the sealing spring (13) is fixed to the fixing plate (12), and the other end is fixed to the sealing plate (15), the diameter of the sealing plate (15) is smaller than the inner diameter of the water spray pipe (7), the sealing ring (16) is fixed to the end of the water spray pipe (7), and the diameter of the sealing ring (16) is larger than the inner diameter of the sealing ring (16), and one end of the limiting rod (14) is fixed to the sealing plate (15). , the other end passes through the fixed plate (12) and is slidably connected to the fixed plate (12), the opening member (11) includes a leakage pipe (18) and a connecting pipe (19), the diameter of the leakage pipe (18) is smaller than the inner diameter of the water spray pipe (7), the leakage pipe (18) is provided with a second leakage hole (20), one end of the leakage pipe (18) is fixed to the connecting pipe (19) and communicates with the connecting pipe (19), one end of the connecting pipe (19) is provided with an external thread, the inner side of the sealing ring (16) is provided with an internal thread, the connecting pipe (19) is threadedly connected to the sealing ring (16), and one end of the connecting pipe (19) is fixed to the adjacent water spray pipe (7).

2. The leaching equipment for treating heavy metals in sludge according to claim 1, characterized in that: A limiting ring (21) is fixedly sleeved on the connecting pipe (19), and a first sealing gasket (22) is fixed on a side of the limiting ring (21) close to the sealing ring (16).

3. The leaching equipment for treating heavy metals in sludge according to claim 2, characterized in that: A second sealing gasket (23) is fixed to one side of the sealing plate (15) close to the sealing ring (16).

4. The leaching equipment for treating heavy metals in sludge according to claim 3, characterized in that: The driving device (6) comprises an adjusting cylinder (24), an adjusting block (25), a base (26), a bearing seat (27), a limiting tube (28) and a power assembly (29). The adjusting cylinder (24) is sleeved on the outside of the water pipe (5), and the bottom end is rotatably connected to the base (26) through the bearing seat (27). The adjusting block (25) is fixed to the bottom end of the water pipe (5). The outer side of the adjusting block (25) is provided with an external thread, and the inner side of the adjusting cylinder (24) is provided with an internal thread. The adjusting block (25) is threadedly connected to the adjusting cylinder (24). At least one plane is provided on the outer side of the limiting tube (28). The limiting tube (28) passes through the adjusting block (25) and the base (26), and is slidably connected to the adjusting block (25) and fixedly connected to the base (26). The top end of the limiting tube (28) is communicated with the inside of the water pipe (5), and the bottom end is communicated with the water supply device. The power assembly (29) is used to drive the adjusting cylinder (24) to rotate.

5. The leaching equipment for treating heavy metals in sludge according to claim 4, characterized in that: A sealing sleeve is fixed at the connection between the regulating block (25) and the limiting tube (28).

6. The leaching equipment for treating heavy metals in sludge according to claim 5, characterized in that: The power assembly (29) includes a motor (30), a first pulley (31), a second pulley (32) and a V-belt (33), wherein the motor (30) is fixed on the base (26), the first pulley (31) is fixed on the output shaft of the motor (30), and the first pulley (31) is connected to the second pulley (32) through the V-belt (33), and the second pulley (32) is fixedly sleeved on the adjustment cylinder (24).

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