CN208562090U - A kind of elution circuit removing Heavy Metals in Sludge - Google Patents

Abstract

The utility model discloses a kind of elution circuits for removing Heavy Metals in Sludge, including feedstock processing part, reactive moieties, filtration fraction and elution processing part.Feedstock processing part includes the sludge pump that the feed pump and input terminal of sludge agitation pond, the blender A being located in sludge agitation pond, output end and the connection of sludge agitation pond are connect with sludge agitation pond；Reactive moieties include reaction kettle and the blender B that is located in reaction kettle；Filtration fraction includes filtering ponds, the diaphragm plate being located in filtering ponds and the filler being deposited on diaphragm plate；Elution processing unit point includes adjustment pond, output end and adjusts the circulating pump and the filler device for being located at adjustment pond side that suction pump, the input terminal that pond is connect are connect with adjustment pond.The utility model is for sludge heavy-metal processing, and treatment effeciency is high, and low energy consumption, has very big market prospects.

Description

A kind of elution circuit removing Heavy Metals in Sludge

Technical field

The utility model relates to sludge treatment field, and in particular to a kind of elution circuit for removing Heavy Metals in Sludge.

Background technique

With stepping up for environmental requirement, the public also steps up the human-subject test of environmental pollution.It is more and more Pollution sources be included into treatment range, more and more new technologies are also applied in pollution control.

Soil leaching technology, which refers to, injects polluted soil for the chemical solvent that can promote soil pollutant dissolution or migration In, thus the technology that pollutant is dissolved from soil, separates and handled.Soil leaching and soil wash (soil Washing) different from.Soil washing is to be washed with clear water to contaminated soil, will be attached to having for soil particle surface Machine and inorganic pollution are transferred in aqueous solution, to achieve the purpose that washing and cleaning contaminated soil.

Soil leaching technology is a new technology of rising in recent years, because its treatment effeciency is high and to more environment-friendly, Start more and more to be applied in soil remediation.

Utility model content

The utility model is intended to provide a kind of elution circuit of higher removal Heavy Metals in Sludge for the treatment of effeciency.

The utility model adopts the following technical solution:

A kind of elution circuit removing Heavy Metals in Sludge, including feedstock processing part, reactive moieties, filtration fraction and leaching Wash processing part；

The feedstock processing part includes sludge agitation pond, the blender A, output end and the sludge that are located in sludge agitation pond The sludge pump that the feed pump and input terminal of stirring pool connection are connect with sludge agitation pond；

The reactive moieties include reaction kettle and the blender B that is located in reaction kettle；

The filtration fraction includes filtering ponds, the diaphragm plate being located in filtering ponds and the filler being deposited on diaphragm plate；

The elution processing unit point includes adjusting pond, the suction pump that output end is connect with adjustment pond, input terminal and adjustment pond The circulating pump of connection and the filler device for being located at adjustment pond side；

The output end of the sludge pump is connect with reaction kettle；

The output end of the reaction kettle is connect with filtering ponds；

The input terminal of the suction pump is connect with filtering ponds；

The input terminal of the circulating pump is connect with reaction kettle.

As further solution: the type of the blender A is anchor agitator.

As further solution: the blender B includes the bracket being fixed on reaction kettle inner wall, is mounted on branch Motor, the agitating shaft being connect with holder pivots on frame and the stirring wing being located on agitating shaft；

Erosion resistant coating is coated on the agitating shaft and stirring wing.

As further solution: the bottom of the reaction kettle is fixed with auxiliary positioning set；The agitating shaft from By covering matcoveredn on end；

The outer wall of the protective layer is contacted with the inner wall that auxiliary positioning covers.

As further solution: the material of the protective layer is polytetrafluoroethylene (PTFE).

As further solution: the filler is by the one of or several of stalk, sandstone, active carbon and leaf Kind is composed.

As further solution: the filler device includes being located at the hopper of adjustment pond side and connecting with hopper Constant displacement pump；

The output end of the constant displacement pump is connect with adjustment pond.

The good effect that the utility model generates is as follows:

The treatment effeciency of the utility model is higher.Sludge is sent in sludge agitation pond and adds water and stirs, and on the one hand dilutes, separately On the one hand the impurity in sludge can be removed, it is made to be deposited in sludge agitation bottom of pond.Then reaction kettle is sent to by sludge pump In.Eluent, which is added in adjustment pond and injects enough water, to be diluted, and is then injected into reaction kettle by circulating pump.The two It is reacted in reaction kettle, the heavy metal in sludge is transferred in eluent.The mixture that reaction is completed is sent into filtering ponds, mixture In sludge retained by filler, solution back to adjustment pond.According to content of beary metal and eluent concentration in adjustment pond, to solution Exchanged or supplemented eluent.It does not need to stop in treatment process, can run without interruption within 24 hours, sludge is drenched It washes.

The utility model water consumption is lower, can be effectively reduced water consumption and operating cost.It is used in circulating treatment procedure Water reaction kettle and adjustment pond between recycle, do not need to supplement, realize the recycling of water, can be effectively reduced water consumption Amount.It is also to be noted that the water consumption of industrial water is huge, water price is being dropped also above urbanite water consumption price, cycling use of water It can be greatly lowered while low water consumption with water cost.

Blender B in the utility model reaction kettle passes through special designing, can adapt to continuous intensive work.Stirring The agitating shaft of device B is generally made using Q235, and this material is not corrosion-resistant.It is stirred containing corrosion cost in sludge and eluent Mixing axis cannot work long hours in the present context.And in order to improve working efficiency, the volume of reaction kettle must increase, and correspondence is stirred Mixing shaft length can significantly be promoted.Easily there is phenomena such as shaking, unstability during the work time in long agitating shaft, causes equipment damage. The utility model increases erosion resistant coating on agitating shaft and stirring wing, can be avoided it and is corroded, improves service life.It stirs simultaneously It mixes and is cased with protective case on the free end of axis, protective case is located in auxiliary positioning set, and the both ends of such agitating shaft are positioned, effectively Avoid the shaking of agitating shaft.Protective case and auxiliary positioning set contact, avoid the abrasion of erosion resistant coating in rotation process.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the coating schematic diagram of erosion resistant coating；

Wherein: 11 sludge agitation ponds, 12 blender A, 13 feed pumps, 14 sludge pumps, 21 reaction kettles, 31 filtering ponds, 32 cross Partition, 33 fillers, 41 adjustment ponds, 42 suction pumps, 43 circulating pumps, 51 brackets, 52 motors, 53 agitating shafts, 54 stirring wings, 55 anti-corrosions Layer, 61 auxiliary positioning sets, 62 protective layers, 71 hoppers, 72 constant displacement pumps.

Specific embodiment

The utility model is further described below with reference to Fig. 1-2.

The utility model adopts the following technical solution:

A kind of elution circuit removing Heavy Metals in Sludge, including feedstock processing part, reactive moieties, filtration fraction and leaching Wash processing part；

The feedstock processing part includes sludge agitation pond 11, the blender A12, the output end that are located in sludge agitation pond 11 The sludge pump 14 that the feed pump 13 and input terminal connecting with sludge agitation pond 11 are connect with sludge agitation pond 11；

The reactive moieties include reaction kettle 21 and the blender B that is located in reaction kettle 21；

The filtration fraction includes filtering ponds 31, the diaphragm plate being located in filtering ponds 31 32 and is deposited on diaphragm plate 32 Filler 33；

The elution processing unit point include adjustment pond 41, output end connect with adjustment pond 41 suction pump 42, input terminal and The circulating pump 43 and be located at the filler device for adjusting 41 side of pond that adjustment pond 41 connects；

The output end of the sludge pump 14 is connect with reaction kettle 21；

The output end of the reaction kettle 21 is connect with filtering ponds 31；

The input terminal of the suction pump 42 is connect with filtering ponds 31；

The input terminal of the circulating pump 43 is connect with reaction kettle 21.

As further solution: the type of the blender A12 is anchor agitator.

As further solution: the blender B includes the bracket 51 being fixed on 21 inner wall of reaction kettle, installation In motor 52, the agitating shaft 53 that is rotatablely connected with bracket 51 and the stirring wing 54 that is located on agitating shaft 53 on bracket 51；

Erosion resistant coating 55 is coated on the agitating shaft 53 and stirring wing 54.

As further solution: the bottom of the reaction kettle 21 is fixed with auxiliary positioning set 61；The agitating shaft Matcoveredn 62 is covered on 53 free end；

The outer wall of the protective layer 62 is contacted with the inner wall of auxiliary positioning set 61.

As further solution: the material of the protective layer 62 is polytetrafluoroethylene (PTFE).

As further solution: the filler 33 by stalk, sandstone, active carbon and leaf one of which or It is several to be composed.

As further solution: the filler device includes the hopper 71 and and hopper for being located at adjustment 41 side of pond The constant displacement pump 72 of 71 connections；

The output end of the constant displacement pump 72 is connect with adjustment pond 41.

The utility model is further described below with reference to the actual course of work.

Sludge directly pours into sludge agitation pond 11, and feed pump 13 injects enough clear water, and then blender A12 starts, It is adequately stirred, is on the one hand dissolved in water sludge adequately, mud is formed, on the other hand makes miscellaneous in sludge Matter precipitating.

Enough clear water are injected into adjustment pond 41 simultaneously and are adjusted the eluent injection in hopper 71 by constant displacement pump 72 Whole pond 41 forms leacheate.

Then sludge pump 14 and circulating pump 43 work at the same time, and mud and leacheate are injected into reaction kettle 21 respectively.Electricity Machine 52 drives 54 high-speed rotation of stirring wing by agitating shaft 53, and mud and leacheate are sufficiently mixed.During being somebody's turn to do, in mud Heavy metal is transferred in leacheate.

After the completion of stirring, the mixture of formation is transferred in filtering ponds 31, the filler 33 on diaphragm plate 32 is by mixture In sludge retention, solution pass through filler 33, be transferred to the lower section of diaphragm plate 32.

Solution in filtering ponds 31 is sent in adjustment pond 41 by suction pump 42.Staff is periodically to molten in adjustment pond 41 Liquid is detected, and emphasis detects heavy metal concentration and eluent concentration the two numerical value.When heavy metal concentration is excessively high, taking-up portion Divide solution and clear water is added, eluent is added when relatively low in eluent concentration.

Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations, Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that, It can still modify to technical solution documented by previous embodiment, or be equal to part of technical characteristic Replacement, and these are modified or replaceed, the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution Spirit and scope.

Claims (6)

1. a kind of elution circuit for removing Heavy Metals in Sludge, it is characterised in that: including feedstock processing part, reactive moieties, mistake Filter part and elution processing part；

The blender A(12 that the feedstock processing part includes sludge agitation pond (11), is located in sludge agitation pond (11)), output The sludge pump (14) for holding the feed pump (13) connecting with sludge agitation pond (11) and input terminal to connect with sludge agitation pond (11)；

The reactive moieties include reaction kettle (21) and the blender B that is located in reaction kettle (21)；

The filtration fraction includes filtering ponds (31), the diaphragm plate (32) being located in filtering ponds (31) and is deposited in diaphragm plate (32) On filler (33)；

Suction pump (42), the input terminal that the elution processing unit point is connect including adjustment pond (41), output end with adjustment pond (41) The filler device of pond (41) side is adjusted with adjustment pond (41) circulating pump (43) that connect and being located at；

The output end of the sludge pump (14) is connect with reaction kettle (21)；

The output end of the reaction kettle (21) is connect with filtering ponds (31)；

The input terminal of the suction pump (42) is connect with filtering ponds (31)；

The input terminal of the circulating pump (43) is connect with reaction kettle (21).

2. a kind of elution circuit for removing Heavy Metals in Sludge according to claim 1, it is characterised in that: the blender A(12 type) is anchor agitator.

3. a kind of elution circuit for removing Heavy Metals in Sludge according to claim 1, it is characterised in that: the blender B includes that the bracket (51) being fixed on reaction kettle (21) inner wall, the motor (52) being mounted on bracket (51) and bracket (51) turn The agitating shaft (53) of dynamic connection and the stirring wing (54) being located on agitating shaft (53)；

Erosion resistant coating (55) are coated on the agitating shaft (53) and stirring wing (54).

4. a kind of elution circuit for removing Heavy Metals in Sludge according to claim 3, it is characterised in that: the reaction kettle (21) bottom is fixed with auxiliary positioning set (61)；Matcoveredn (62) are covered on the free end of the agitating shaft (53)；

The outer wall of the protective layer (62) is contacted with the inner wall of auxiliary positioning set (61).

5. a kind of elution circuit for removing Heavy Metals in Sludge according to claim 4, it is characterised in that: the protective layer (62) material is polytetrafluoroethylene (PTFE).

6. a kind of elution circuit for removing Heavy Metals in Sludge according to claim 1, it is characterised in that: the filler dress The constant displacement pump (72) setting the hopper (71) including being located at adjustment pond (41) side and being connect with hopper (71)；

The output end of the constant displacement pump (72) is connect with adjustment pond (41).