Desiliconized mud cake pretreatment device for iron oxide production
阅读说明：本技术 一种氧化铁生产用脱硅泥饼预处理装置 (Desiliconized mud cake pretreatment device for iron oxide production ) 是由 储茂德 张曼 于 2020-04-28 设计创作，主要内容包括：本发明涉及氧化铁生产设备技术领域,提供一种氧化铁生产用脱硅泥饼预处理装置,旨在解决脱硅泥饼含有大量的颗粒状杂质,需要先对脱硅泥饼进行预处理,保证脱硅泥饼的纯净度的问题,包括沿着处理流程依次排列的泥饼破碎机、打浆机构Ⅰ、漂洗过滤机构、打浆机构Ⅱ和离心机,泥饼破碎机的输出端通过泥浆管Ⅰ与打浆机构Ⅰ相连接,打浆机构Ⅰ的输出端通过泥浆管Ⅱ与漂洗过滤机构相连接,漂洗过滤机构的输出端通过泥浆管Ⅲ与打浆机构Ⅱ相连接,打浆机构Ⅱ的输出端通过泥浆管Ⅳ与离心机相连接；所述泥浆管Ⅰ的输出端上贯通安装有输水管Ⅰ。本发明尤其适用于脱硅泥饼的预处理,具有较高的社会使用价值和应用前景。(The invention relates to the technical field of iron oxide production equipment, and provides a desiliconized mud cake pretreatment device for producing iron oxide, aiming at solving the problems that desiliconized mud cakes contain a large amount of granular impurities and need to be pretreated firstly, and the purity of the desiliconized mud cakes is ensured; and a water delivery pipe I is arranged at the output end of the mud pipe I in a run-through manner. The method is particularly suitable for pretreatment of desiliconized mud cakes, and has higher social use value and application prospect.)
1. A desiliconized mud cake pretreatment device for producing ferric oxide is characterized by comprising a mud cake crusher, a pulping mechanism I, a rinsing and filtering mechanism, a pulping mechanism II and a centrifuge which are sequentially arranged along a treatment process, wherein the output end of the mud cake crusher is connected with the pulping mechanism I through a mud pipe I, the output end of the pulping mechanism I is connected with the rinsing and filtering mechanism through a mud pipe II, the output end of the rinsing and filtering mechanism is connected with the pulping mechanism II through a mud pipe III, and the output end of the pulping mechanism II is connected with the centrifuge through a mud pipe IV;
the output end of the mud pipe I is provided with a water delivery pipe I in a penetrating way, the other end of the water delivery pipe I is communicated with an external water source, and the water delivery pipe I is provided with a water delivery valve I;
the pulping mechanism I and the pulping mechanism II are of the same specification, the pulping mechanism I comprises a tank body, a main shaft is vertically arranged in an inner cavity of the tank body, a plurality of mixed pulp plate wheels are fixedly sleeved on the main shaft, the upper end of the main shaft penetrates through the top wall of the tank body and is installed at the output end of a driving motor I, the driving motor I is fixedly installed at the top end of a gear shell, the gear shell is fixedly installed on the top wall of the tank body, a driving gear is fixedly sleeved on a section, located in the inner cavity of the gear shell, of the main shaft, is meshed with a plurality of driven gears, a stirring rod is fixedly inserted in the middle of each driven gear, and the lower end of each stirring rod extends;
rinsing filtering mechanism includes the rinsing pond, and installs driving motor II on the diapire of rinsing pond, and installs the drive shaft on driving motor II's the output, the upper end of drive shaft extends to the inner chamber of rinsing pond, runs through the spiral arm of filtering the otter board and installing a plurality of annular array distributions, filters otter board horizontal installation on the inner wall of rinsing pond, and the lower side of spiral arm free end is passed through branch and is installed the shop board, and the shop board is with the up end sliding connection who filters the otter board.
2. The desiliconized mud cake pretreatment device for producing iron oxide according to claim 1, characterized in that: the mud pump I and the mud control valve I are installed on the mud pipe I, and the mud control valve I is arranged on one side, close to the input end, of the mud pipe I.
3. The desiliconized mud cake pretreatment device for producing iron oxide according to claim 1, characterized in that: and the output end of the centrifugal machine is provided with a drain pipe for draining rinsing water and a sludge discharge pipe for discharging slurry.
4. The desiliconized mud cake pretreatment device for producing iron oxide according to claim 1, characterized in that: and the mud control valve II and the mud pump II are arranged on the mud pipe II, the mud pipe III and the mud pipe IV, and the mud control valve II is arranged on one side of the mud pipe II, the mud pipe III and the mud pipe IV close to the input end.
5. The desiliconized mud cake pretreatment device for producing iron oxide according to claim 1, characterized in that: and a plurality of electric heating plates distributed along the inner wall in an annular array are arranged at the lower parts of the inner cavities of the tank bodies of the pulping mechanism I and the pulping mechanism II.
6. The desiliconized mud cake pretreatment device for producing iron oxide according to claim 1, characterized in that: it is a plurality of the setting of mixing thick liquid board wheel equidistance, and the quantity of mixing thick liquid board wheel more than or equal to four.
7. The desiliconized mud cake pretreatment device for producing iron oxide according to claim 1, characterized in that: the number of the stirring rods is more than or equal to three, and the lengths of the three stirring rods extending into the tank body are sequentially decreased progressively.
8. The desiliconized mud cake pretreatment device for producing iron oxide according to claim 1, characterized in that: and a section of the driving shaft, which is positioned at the lower end of the filter screen plate, is fixedly sleeved with a plurality of rinsing impellers.
9. The desiliconized mud cake pretreatment device for producing iron oxide according to claim 1, characterized in that: the slurry-water separation device is characterized by also comprising a control component for controlling the mud cake crusher to crush desilicated mud cakes, controlling the beating mechanism I to carry out coarse beating, controlling the rinsing and filtering mechanism to rinse and filter slurry, controlling the beating mechanism II to carry out fine beating and controlling the centrifuge to carry out slurry-water separation, wherein the control component is an industrial personal computer.
Technical Field
The invention relates to the technical field of iron oxide production equipment, in particular to a desiliconized mud cake pretreatment device for iron oxide production.
Background
Iron oxide, of the chemical formula Fe2O3, is also known as burnt limonite, burnt ocher, red iron oxide, red iron powder, etc. The red brown powder is a low-grade pigment, is industrially called iron oxide red, can be used in the industries of paint, printing ink, rubber and the like, can be used as a catalyst, and can be used as a polishing agent for glass, jewels and metal and can be used as an iron-making raw material.
The desiliconization mud cake is the filtering waste material produced by a desiliconization device when the waste acid after steel plate pickling is used for producing magnetic iron oxide red. The strip steel pickling is an indispensable procedure on a cold rolling production line, a large amount of pickling waste liquid is generated after the strip steel pickling, the main components of the pickling waste liquid are ferrous chloride and a small amount of residual hydrochloric acid, the common recovery method is to regenerate the pickling waste liquid to generate regenerated hydrochloric acid, the regenerated hydrochloric acid is returned to a pickling section for continuous application, meanwhile, iron in the pickling waste liquid is changed into iron oxide powder which is a main raw material of ferrite magnetic materials, and desiliconized mud cakes are formed after the iron oxide powder is removed.
The dry desiliconized mud cake is in a block shape, yellowish red and mud block shape, the total iron content is 50-65% after drying at 100 ℃, the screen residue is less than or equal to 0.2%, the grain fineness of the mud cake is good, the main components of the mud cake are Fe (OH)3, Fe (OH)2 and water, and the mud cake also contains about 1% of SiO2 and FeO.
The existing technology for preparing iron oxide by adopting desiliconized mud cakes needs to pretreat the desiliconized mud cakes firstly because the desiliconized mud cakes contain a large amount of granular impurities, so that the purity of the desiliconized mud cakes is ensured, and a special desiliconized mud cake pretreatment device does not appear in the market.
Therefore, we propose a desiliconized mud cake pretreatment device for producing iron oxide.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a desiliconized mud cake pretreatment device for producing iron oxide, which overcomes the defects of the prior art, has reasonable design and compact structure and aims to solve the problems that desiliconized mud cakes contain a large amount of granular impurities and need to be pretreated at first to ensure the purity of the desiliconized mud cakes.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a desiliconized mud cake pretreatment device for producing iron oxide comprises a mud cake crusher, a pulping mechanism I, a rinsing filtering mechanism, a pulping mechanism II and a centrifugal machine which are sequentially arranged along a treatment process, wherein the output end of the mud cake crusher is connected with the pulping mechanism I through a mud pipe I, the output end of the pulping mechanism I is connected with the rinsing filtering mechanism through a mud pipe II, the output end of the rinsing filtering mechanism is connected with the pulping mechanism II through a mud pipe III, and the output end of the pulping mechanism II is connected with the centrifugal machine through a mud pipe IV;
the output end of the mud pipe I is provided with a water delivery pipe I in a penetrating way, the other end of the water delivery pipe I is communicated with an external water source, and the water delivery pipe I is provided with a water delivery valve I;
the pulping mechanism I and the pulping mechanism II are of the same specification, the pulping mechanism I comprises a tank body, a main shaft is vertically arranged in an inner cavity of the tank body, a plurality of mixed pulp plate wheels are fixedly sleeved on the main shaft, the upper end of the main shaft penetrates through the top wall of the tank body and is installed at the output end of a driving motor I, the driving motor I is fixedly installed at the top end of a gear shell, the gear shell is fixedly installed on the top wall of the tank body, a driving gear is fixedly sleeved on a section, located in the inner cavity of the gear shell, of the main shaft, is meshed with a plurality of driven gears, a stirring rod is fixedly inserted in the middle of each driven gear, and the lower end of each stirring rod extends;
rinsing filtering mechanism includes the rinsing pond, and installs driving motor II on the diapire of rinsing pond, and installs the drive shaft on driving motor II's the output, the upper end of drive shaft extends to the inner chamber of rinsing pond, runs through the spiral arm of filtering the otter board and installing a plurality of annular array distributions, filters otter board horizontal installation on the inner wall of rinsing pond, and the lower side of spiral arm free end is passed through branch and is installed the shop board, and the shop board is with the up end sliding connection who filters the otter board.
Preferably, a mud pump I and a mud control valve I are installed on the mud pipe I, and the mud control valve I is arranged on one side, close to the input end, of the mud pipe I.
Preferably, the output end of the centrifuge is provided with a drain pipe for discharging rinsing water and a sludge discharge pipe for discharging sludge.
Preferably, a slurry control valve II and a slurry pump II are arranged on the slurry pipe II, the slurry pipe III and the slurry pipe IV, and the slurry control valve II is arranged on one side, close to the input end, of the slurry pipe II, the slurry pipe III and the slurry pipe IV.
Preferably, a plurality of electric heating plates distributed along the inner wall in an annular array are arranged at the lower parts of the inner cavities of the tank bodies of the pulping mechanism I and the pulping mechanism II.
Preferably, a plurality of the mixing paddle wheels are arranged at equal intervals, and the number of the mixing paddle wheels is more than or equal to four.
Preferably, the number of the stirring rods is more than or equal to three, and the lengths of the three stirring rods extending into the tank body are sequentially and progressively reduced.
Preferably, a section of the driving shaft positioned at the lower end of the filter screen plate is fixedly sleeved with a plurality of rinsing impellers.
Preferably, the device also comprises a control component for controlling the mud cake crusher to crush desilicated mud cakes, controlling the pulping mechanism I to carry out coarse pulping, controlling the rinsing and filtering mechanism to rinse and filter mud, controlling the pulping mechanism II to carry out fine pulping and controlling the centrifuge to carry out slurry-water separation, wherein the control component is an industrial personal computer.
(III) advantageous effects
The embodiment of the invention provides a desiliconized mud cake pretreatment device for producing iron oxide, which has the following beneficial effects:
1. through the integrated configuration of mud cake breaker and mud pipe I, the mud cake breaker is smashed dry mud cake, is convenient for mix with water and forms mud, combines mud pipe I to be leading-in with external water source, combines slush pump I to mix and drive the mud cake after the breakage and pass through mud pipe I input making beating mechanism I, guarantee the transmission and the subsequent processing of mud cake, guarantee the preliminary treatment quality of desiliconization mud cake.
2. Through the combined structure of the pulping mechanism I and the rinsing and filtering mechanism, crushed mud cake mixed water enters the tank body through the mud pipe I, the driving motor I drives the plurality of mixed mud plate wheels at the lower end of the main shaft to rotate, and the mud plates of the mixed mud plate wheels continuously flap agglomerated mud cakes, so that the mud cakes are fully mixed with the water to form mud and the compactness of the mud is ensured; the filter screen plate in the rinsing pool is combined, the spreading plate rotates to spread the desiliconized slurry, the desiliconized slurry filters fine slurry through meshes on the filter screen plate, impurities of coarse particles remain on the filter screen plate, and the purity of the slurry is guaranteed.
3. Through the combined structure of the pulping mechanism I, the rinsing and filtering mechanism and the pulping mechanism II, the pulping mechanism I performs coarse pulping to enable mud cakes to be mixed with water to form slurry, the slurry is input into the rinsing and filtering mechanism to be rinsed and filtered, impurities in the slurry are removed, and the purity of the desiliconized slurry is ensured; the pure desiliconized slurry enters a pulping mechanism II for fine pulping again, and the full pretreatment of the desiliconized slurry is ensured.
4. Through centrifuge's setting, the drain pipe is used for the rinsing water to discharge on centrifuge to and the mud pipe is used for the mud to discharge, realizes the separation of mud and water, and desiliconization mud cake after the preliminary treatment, its density and purity all obtain promoting by a wide margin, can guarantee the use of follow-up iron oxide production, improve the iron oxide quality of preparing.
Drawings
The above characteristics, technical features, advantages and means of realisation of a desilicated cake pretreatment device for iron oxide production will be further described in the following description of preferred embodiments in a clearly understandable manner with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the combination structure of a mud cake crusher and a mud pipe I in the invention;
FIG. 3 is a schematic structural view of a beating mechanism according to the present invention;
FIG. 4 is a schematic view of the combination structure of the stirring rod and the stirring impeller in the present invention;
FIG. 5 is a schematic view of the combination structure of the main shaft and the mixing paddle in the present invention;
FIG. 6 is a schematic view of the structure of the rinsing and filtering mechanism according to the present invention;
FIG. 7 is a schematic view of the structure of the centrifuge of the present invention.
In the figure: the mud cake crusher comprises a mud cake crusher 1, a feeding hopper 101, a mud pipe I2, a mud pump I201, a water conveying pipe I202, a water conveying valve I203, a mud control valve I204, a pulping mechanism I3, a
Detailed Description
The invention will be further illustrated with reference to the following figures 1 to 7 and examples:
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