CN209619410U - The clean recovery unit of potassium ferrocyanide iron powder - Google Patents

Abstract

The utility model discloses a kind of clean recovery units of potassium ferrocyanide iron powder, belong to the chemical equipment technical field of potassium ferrocyanide iron powder recycling, dissolution kettle, expansion chamber, plate filter and acidification kettle including successively sequential communication；The top of the dissolution kettle is equipped with feed opening and filler, the inside of the expansion chamber is equipped with column plate, the bottom end of the expansion chamber is equipped with the first slag-drip opening for the insoluble impurity of big specific gravity to be discharged, filter structure is equipped in the plate filter, the bottom end of the plate filter is equipped with the second slag-drip opening, the side bottom end of the plate filter is equipped with leakage fluid dram, and the top of the acidification kettle is connected to hydrochloric acid tank.The utility model is able to solve the technical issues of iron powder pollution environment of discharge existing in the prior art, can reach the iron powder recycling and reusing to discharge, reduce solid waste to the technical effect of the pollution of environment.

Description

The clean recovery unit of potassium ferrocyanide iron powder

Technical field

The chemical equipment technical field that the utility model belongs to the recycling of potassium ferrocyanide iron powder is more specifically to be related to one kind The clean recovery unit of potassium ferrocyanide iron powder.

Background technique

Usually said potassium ferrocyanide refers to yellow sodium prussiate and yellow potassium prussiate, is a kind of important industrial chemicals.Produce yellow blood The prior art of salt is mainly Powder by Iron Powder, and due to being related to cyanide in reaction raw materials, cyanide belongs to hypertoxicity substance, so On the basis of being fed intake by cyanide when production feeds intake, it is excessive always that iron powder, which feeds intake,；And with the progress of reaction process, The surface area of iron powder gradually becomes smaller, and reaction rate is gradually slack-off, so reaction process is not influenced in order to guarantee reaction rate, it is raw It is needed during producing by the lesser iron powder discharge production system of surface area.Excessive iron powder and production system row in production process The smaller iron powder of surface area out certainly will cause very big pollution to environment, so how to be recycled to the waste of discharge Recycle the focal issue for becoming social concerns.

Utility model content

The purpose of this utility model is to provide a kind of clean recovery units of potassium ferrocyanide iron powder, to solve in the prior art The iron powder of existing discharge pollutes the technical issues of environment, can reach the iron powder recycling and reusing to discharge, reduction solid gives up Technical effect of the gurry to the pollution of environment.

In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of cleaning time of potassium ferrocyanide iron powder Receiving apparatus, dissolution kettle, expansion chamber, plate filter and acidification kettle including successively sequential communication；The top of the dissolution kettle Equipped with feed opening and filler, the inside of the expansion chamber is equipped with column plate, and the bottom end of the expansion chamber is equipped with for big ratio to be discharged First slag-drip opening of the insoluble impurity of weight, the plate filter is interior to be equipped with filter structure, and the bottom end of the plate filter is equipped with Second slag-drip opening, the side bottom end of the plate filter are equipped with leakage fluid dram, and the top of the acidification kettle is connected to hydrochloric acid tank.

Further, the quantity of the column plate is 4-10 layers, and the column plate is uniformly distributed along the longitudinal gap of the expansion chamber.

Further, the distance between the column plate is 300mm-500mm.

Further, the front end of the dissolution kettle is equipped with the feed bin for holding material and connects the feed bin and the feed opening The first conveying auger.

Further, the bottom of the plate filter be equipped with Material collecting box for harvesting, the Material collecting box for harvesting by the second conveying auger with The upper end connection of the acidification kettle.

Further, the pipeline that the dissolution kettle is connect with the expansion chamber is equipped with lysate delivery pump and flowmeter.

Further, stirring structure is equipped in the dissolution kettle.

Further, the stirring structure includes agitating shaft in the middle part of the dissolution kettle and is located at the agitating shaft bottom The agitator arm at end.

Further, agitator arm includes circular stirring ring and the 3-6 connection stirring ring and the agitating shaft Paddle, the paddle is uniformly distributed along the circumferential direction of the stirring ring, and the blade face of the paddle is curved surface.

Further, Weighing module is equipped on the dissolution kettle and acidification kettle.

A kind of beneficial effect of the clean recovery unit of potassium ferrocyanide iron powder provided by the utility model is: the utility model The clean recovery unit of potassium ferrocyanide iron powder be added in dissolution kettle by the iron powder waste that will be discharged in normal production system, A certain amount of water is added to stir evenly, is then separated by expansion chamber, heavy material is trapped expansion chamber Lower layer, be then inserted in normal production system, the small material of specific gravity was carried out by the discharge port of expansion chamber through plate filter Filter, filtrate carry out back set by leakage fluid dram, and filter residue is added in acidification kettle by the second slag-drip opening, is added with by hydrochloric acid tank Hydrochloric acid carry out reacting synthesizing chlorinated ferrous iron solution, this solution of ferrous chloride is used to use the absorbing liquid of Cyanuric Chloride tail gas. The clean recovery unit of this potassium ferrocyanide iron powder solves the technical issues of iron powder pollution environment of discharge existing in the prior art, uses It in the recycling to potassium ferrocyanide iron powder, can turn waste into wealth, realize the recycling and reusing of iron powder, the iron not only reduced in production is former Material consumption, and reduce pollution of the solid waste to environment.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is a kind of structural schematic diagram of the clean recovery unit of potassium ferrocyanide iron powder provided by the embodiment of the utility model；

Fig. 2 is the structural schematic diagram of the stirring structure in Fig. 1.

Wherein, each appended drawing reference in figure:

1-feed bin, the 2-the first conveying auger, 3-dissolution kettles, 4-lysate delivery pumps, 5-expansion chambers, 6-sheet frame mistakes Filter, 7-Material collecting box for harvesting, the 8-the second conveying auger, 9-acidification kettles, 10-column plates, 11-flowmeters, 12-stirring structures, 12- 1-motor, 12-2-agitating shaft, 12-2-agitating shaft, 12-3-auxiliary mixing arm, 12-4-agitator arm, 12-4-1-are stirred Mix ring, 12-4-2-paddle, 13-hydrochloric acid tanks.

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

It please refers to shown in Fig. 1, the clean recovery unit of the potassium ferrocyanide iron powder of the utility model, including successively sequential communication Dissolution kettle 3, expansion chamber 5, plate filter 6 and acidification kettle 9；The top of the dissolution kettle 3 is equipped with feed opening and filler, institute The inside for stating expansion chamber 5 is equipped with column plate 10, and the bottom end of the expansion chamber 5 is equipped with the first row for the insoluble impurity of big specific gravity to be discharged Cinder notch, it is mainly impurity not soluble in water that big specific gravity, which does not allow impurity, the big iron powder of the surface area after referring to sedimentation, the sheet frame Filter structure is equipped in filter 6, the bottom end of the plate filter 6 is equipped with the second slag-drip opening, the side of the plate filter 6 Portion bottom end is equipped with leakage fluid dram, and the slag charge of the first slag-drip opening discharge of the feed liquid and expansion chamber of leakage fluid dram output is mixed into life Production system is applied, and the top of the acidification kettle 9 is connected to hydrochloric acid tank；Plate filter uses van-type plate filter press, mistake Filter structure includes that filter plate, filter frame, filter cloth and the rack compressed to filter structure form；Hydraulic power unit, motor and electric appliance Control cabinet is attached separately in oil cylinder seat and fuel tank body, and fuselage, electric appliance, hydraulic three parts is made to combine together, after machine installation and debugging, Only it need to power on and can come into operation；Plate filter, which uses, has alternately arranged filter plate and filter frame to constitute one group of filter chamber, There is a groove on the surface of filter plate, and protruding parts have through-hole on the corner of filter cloth and filter frame, constituted after assembling to supporting filter cloth Whole channel can be passed through feed liquid, washing water and draw filtrate, and feed liquid is flowed into from filter cloth side, under a certain pressure, passed through by filter cloth Filter plate surface grooves and filter frame corner through-hole draw feed liquid.

The clean recovery unit of above-mentioned potassium ferrocyanide iron powder is added by the iron powder waste that will be discharged in normal production system Into dissolution kettle 3, a certain amount of water is added and stirs evenly, is then separated by expansion chamber 5, heavy material quilt It is trapped into the lower layer of expansion chamber 5, is then inserted in normal production system, the small material of specific gravity is by the discharge port of expansion chamber 5 through plate Frame filter 6 is filtered, and filtrate carries out back set by leakage fluid dram, and filter residue is added in acidification kettle 8 by the second slag-drip opening, with The hydrochloric acid being added by hydrochloric acid tank 13 carries out reacting synthesizing chlorinated ferrous iron solution, this solution of ferrous chloride is used for Cyanuric Chloride The absorbing liquid of tail gas uses.The clean recovery unit of this potassium ferrocyanide iron powder solves the iron powder pollution of discharge existing in the prior art The technical issues of environment, can turn waste into wealth for the recycling to potassium ferrocyanide iron powder, realize the recycling and reusing of iron powder, not only The iron material consumption in production is reduced, and reduces pollution of the solid waste to environment.

It please refers to shown in Fig. 1, one kind of the clean recovery unit as potassium ferrocyanide iron powder provided by the utility model is specific Embodiment, the column plate 10 is using with porose plectane, and quantity is 4-10 layers, and the column plate 10 is along the vertical of the expansion chamber 5 To uniformly at intervals；Distance between the column plate 10 is 300mm-500mm, when lysate passes through expansion chamber 5, heavy material Small material can be effectively separated by column plate 10 with specific gravity, and heavy material enters production system and applied, than The small material of weight is filtered post-processing, all operation airtightness operations, first is that distributing for smell is reduced, but feed separation Continuous operation is realized, it is time saving and energy saving, simplify the operation of worker.

It please refers to shown in Fig. 1, one kind of the clean recovery unit as potassium ferrocyanide iron powder provided by the utility model is specific Embodiment, the front end of the dissolution kettle 3 are equipped with the feed bin 1 for holding material and connect the of the feed bin 1 and the feed opening One conveying auger 2；The discharge port of feed bin 1 is connect with the feed inlet of the first conveying auger 2, the discharge port point of the first conveying auger 2 It is not connect with the feed inlet of dissolution kettle 3.The iron powder waste that production system is discharged is added in feed bin 1, the first conveying is passed through Auger 2 is added in dissolution kettle 3, reduces the manipulation strength of worker, and the cleaning at aspect scene reduces distributing for smell.

A kind of specific embodiment of clean recovery unit as potassium ferrocyanide iron powder provided by the utility model, the plate The bottom of frame filter 6 is equipped with Material collecting box for harvesting 7, and the Material collecting box for harvesting 7 is connected by the upper end of the second conveying auger 8 and the acidification kettle 9 It connects.The discharge port of above-mentioned Material collecting box for harvesting 7 is connect with the feed inlet of the second conveying auger 8, the discharge port of the second conveying auger 8 respectively with It is acidified the feed inlet connection of kettle 9.The iron powder slag charge that plate filter 6 is discharged is collected into Material collecting box for harvesting 7, is twisted by the second conveying Dragon 8 is added in acidification kettle 9, reduces the manipulation strength of worker, the cleaning at aspect scene reduces distributing for smell.

A kind of specific embodiment of clean recovery unit as potassium ferrocyanide iron powder provided by the utility model, it is described molten The pipeline that solution kettle 3 is connect with the expansion chamber 5 is equipped with lysate delivery pump 4 and flowmeter 11.Lysate delivery pump 4 is added, So that the import of lysate delivery pump 4 is connect with the discharge port of dissolution kettle 3, the outlet of lysate delivery pump 4 and expansion chamber 5 into Material mouth connection, realizes the closed Automatic Conveying of material, and when needing to convey material, opening valve opening lysate delivery pump 4 is Can, reduce the labor intensity of worker.

A kind of specific embodiment of clean recovery unit as potassium ferrocyanide iron powder provided by the utility model, it is described molten It solves and is equipped with stirring structure 12 in kettle 3；The stirring structure 12 includes being located at the agitating shaft 12-2 at 3 middle part of dissolution kettle and being located at The agitator arm 12-4 of the bottom end the agitating shaft 12-2；Agitator arm 12-4 includes circular stirring ring 12-4-1 and 3-6 company The paddle 12-4-2 of the stirring ring 12-4-1 and agitating shaft 12-2 is met, the paddle 12-4-2 is along the stirring ring The circumferential direction of 12-4-1 is uniformly distributed, and the blade face of the paddle 12-4-2 is curved surface；The agitating shaft 12-2 is driven by motor 12-1.

A kind of specific embodiment of clean recovery unit as potassium ferrocyanide iron powder provided by the utility model, described 3-6 auxiliary mixing arm 12-3 is additionally provided in the middle part of agitating shaft 12-2, above-mentioned auxiliary mixing arm 12-3 is plate-like, with the stirring Axis 12-2 is vertically fixed, and is assisted uniformly distributed along the circumferential direction of the agitating shaft 12-2 between mixing arm 12-3.

A kind of specific embodiment of clean recovery unit as potassium ferrocyanide iron powder provided by the utility model, it is described molten It is equipped with Weighing module on solution kettle 3 and acidification kettle 9, the effect of Weighing module is the waste iron powder that can accurately weigh addition With the quality of hydrochloric acid, prevents from causing dissolution kettle 3 and be acidified the flash of kettle 9 and the waste of resource, above-mentioned design is involved in charging All steps realize the accurate metering of material, ensure that the accuracy to feed intake；The institute being connect with dissolution kettle 3 and acidification kettle 9 There is pipeline to be all made of to be flexible coupling.

Embodiment 1

3 volume of dissolution kettle is 1000L, is equipped with 4 layers of column plate in expansion chamber 5, and the distance between column plate is 300mm, is acidified kettle 9 Volume is 1000L.

The positive waste iron powder 300kg for producing production system discharge is poured into feed bin 1, is added to by closed auger 2 molten It solves in kettle 3, according to the waste iron powder charged material weight that dissolution kettle 3 is shown, the 3 of waste iron powder weight is added into dissolution kettle 3 A water again after being sufficiently mixed uniformly, starts to feed to expansion chamber 5, heavy material passes through column plate with lysate delivery pump 4 Sedimentation is intercepted, the small material of specific gravity is filtered by expansion chamber upper outlet through plate filter 6, filter residue residual to sheet frame mistake In filter 6, the sediment in filtrate and expansion chamber 5 enters production system together and is applied, and the filter residue in plate filter 6 is logical It crosses auger 8 to be added in acidification kettle 9, according to the weight that acidification kettle 9 is shown, 2.5 times of molar ratio of hydrochloric acid is added thereto and carries out Acidification, in case Cyanuric Chloride tail gas absorption liquid is stand-by.Final data shows that 175kg, the rate of recovery is always obtained in sedimentation iron powder 58.33%, acidifying solution obtains 803kg, wherein FeCl₂Content 35.3%, acidity calculate 5.07% with hydrochloric acid.It is other three Under the premise of useless generation, the recycling of potassium ferrocyanide iron powder waste is completed.

Embodiment 2

Dissolution kettle volume is 1000L, is equipped with 6 layers of column plate in expansion chamber, and the distance between column plate is 300mm, and acidification kettle holds Product is 1000L.

The positive waste iron powder 300kg for producing production system discharge is poured into feed bin 1, is added to by closed auger 2 molten It solves in kettle 3, according to the waste iron powder weight that dissolution kettle 3 is shown, 3 times one of waste iron powder weight is added into dissolution kettle 3 Secondary water after being sufficiently mixed uniformly, starts to feed to expansion chamber 5, heavy material is intercepted by column plate with lysate delivery pump 4 Sedimentation, the small material of specific gravity are filtered by expansion chamber upper outlet through plate filter 6, filter residue residual to plate filter In 6, the sediment in filtrate and expansion chamber 5 enters production system together and is applied, and the filter residue in plate filter 6 passes through strand Dragon 8 is added in acidification kettle 9, according to the weight that acidification kettle 9 is shown, 2.5 times of molar ratio of hydrochloric acid is added thereto and is acidified Processing, in case the processing of Cyanuric Chloride tail gas absorption liquid is stand-by.Final data shows that 200kg, the rate of recovery is always obtained in sedimentation iron powder 66.67%, acidifying solution obtains 643kg, wherein FeCl₂Content 35.26%, acidity calculate 4.93% with hydrochloric acid.There is no other Under the premise of the three wastes generate, the recycling of potassium ferrocyanide iron powder waste is completed.

The clean recovery unit of potassium ferrocyanide iron powder provided by the utility model, can turn waste into wealth, and realize the recycling of iron powder It recycles, not only reduces the iron material consumption in production, and reduce pollution of the solid waste to environment.The device knot Structure is simple, and operating procedure is brief, without the generation of other three wastes.

Specific case used herein is expounded the principles of the present invention and embodiment, above embodiments Explanation be merely used to help understand the method and its core concept of the utility model.It should be pointed out that for the art For those of ordinary skill, without departing from the principle of this utility model, several change can also be carried out to the utility model Into and modification, modifications and modifications also fall within the protection scope of the claims of the utility model.

Claims (10)

1. the clean recovery unit of potassium ferrocyanide iron powder, it is characterised in that: dissolution kettle, expansion chamber including successively sequential communication, plate Frame filter and acidification kettle；The top of the dissolution kettle is equipped with feed opening and filler, and the inside of the expansion chamber is equipped with tower Plate, the bottom end of the expansion chamber are equipped with the first slag-drip opening for the insoluble impurity of big specific gravity to be discharged, set in the plate filter There is filter structure, the bottom end of the plate filter is equipped with the second slag-drip opening, and the side bottom end of the plate filter is equipped with row The top of liquid mouth, the acidification kettle is connected to hydrochloric acid tank.

2. the clean recovery unit of potassium ferrocyanide iron powder according to claim 1, it is characterised in that: the quantity of the column plate is 4-10 layers, the column plate is uniformly distributed along the longitudinal gap of the expansion chamber.

3. the clean recovery unit of potassium ferrocyanide iron powder according to claim 2, it is characterised in that: the distance between the column plate For 300mm-500mm.

4. the clean recovery unit of potassium ferrocyanide iron powder according to claim 1-3, it is characterised in that: the dissolution The front end of kettle is equipped with the first conveying auger of the feed bin for holding material and the connection feed bin and the feed opening.

5. the clean recovery unit of potassium ferrocyanide iron powder according to claim 4, it is characterised in that: the plate filter Bottom is equipped with Material collecting box for harvesting, and the Material collecting box for harvesting is connect by the second conveying auger with the upper end of the acidification kettle.

6. the clean recovery unit of potassium ferrocyanide iron powder according to claim 1, it is characterised in that: the dissolution kettle with it is described The pipeline of expansion chamber connection is equipped with lysate delivery pump and flowmeter.

7. the clean recovery unit of potassium ferrocyanide iron powder according to claim 1, it is characterised in that: be equipped in the dissolution kettle Stirring structure.

8. the clean recovery unit of potassium ferrocyanide iron powder according to claim 7, it is characterised in that: the stirring structure includes Agitating shaft in the middle part of the dissolution kettle and the agitator arm positioned at the agitating shaft bottom end.

9. the clean recovery unit of potassium ferrocyanide iron powder according to claim 8, it is characterised in that: the agitator arm includes The paddle of circular stirring ring and the 3-6 connection stirring ring and the agitating shaft, the paddle is along the stirring ring Circumferential direction it is uniformly distributed, the blade face of the paddle is curved surface.

10. the clean recovery unit of potassium ferrocyanide iron powder according to claim 1, it is characterised in that: the dissolution kettle and acid The bottom for changing kettle is equipped with Weighing module.