WO2023115430A1 - 一种石灰乳防沉降工艺及其处理装置 - Google Patents
一种石灰乳防沉降工艺及其处理装置 Download PDFInfo
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- WO2023115430A1 WO2023115430A1 PCT/CN2021/140672 CN2021140672W WO2023115430A1 WO 2023115430 A1 WO2023115430 A1 WO 2023115430A1 CN 2021140672 W CN2021140672 W CN 2021140672W WO 2023115430 A1 WO2023115430 A1 WO 2023115430A1
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- tank
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- lime
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- stirring
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Definitions
- the invention relates to the field of lime milk anti-sedimentation, and more specifically, to a lime milk anti-sedimentation process and a treatment device thereof.
- the saponification of the organic phase with alkaline substances is an essential process.
- a large amount of ammonia saponification is used in the early stage, and the cost of ammonia saponification is low, but the ammonia nitrogen content in the wastewater generated after saponification is high, which does not meet environmental protection requirements; Later, liquid caustic saponification was used. Although the problem of ammonia nitrogen content in wastewater was solved, the salt content was high again, and the cost was high.
- the technical problem to be solved by the present invention is to propose a milk of lime anti-sedimentation process and its processing device, which effectively prevents the milk of lime solution from settling in the process, and performs matching process flow through the processing device, It can effectively improve work efficiency and anti-settling effect.
- the invention provides a lime milk anti-sedimentation process, comprising the following steps:
- step S1 the calcium hydroxide content in the purchased lime is 89%-95%; the concentration of the milk of lime solution is controlled between 1.0-4.0mol/L.
- step S3 the settling time is 2 to 5 minutes.
- the stirring duration of the second stirring tank is 5 to 10 minutes, and in the process of stirring, adding a concentration of lanthanum chloride solution that is 1.0mol/L; and lanthanum chloride
- the volume ratio of solution to milk of lime solution is 1:20 ⁇ 1:40.
- the present invention also provides a treatment device for milk of lime anti-sedimentation process, comprising a frame, a first stirring tank, a second stirring tank, and a third stirring tank installed on the frame from top to bottom; There is a filter structure under the feeding port, and the filter structure is installed on the top side of the second stirring tank, and the filtrate passing through the filter structure directly falls into the second stirring tank; above the second stirring tank, there is a The liquid storage tank of the lanthanum solution, the bottom of the liquid storage tank is connected with a discharge pipe, and a flow valve and a solenoid valve are installed on the discharge pipe from top to bottom; Structure, the discharge structure can be used to discharge and collect sediment separately, and can also guide the milk of lime solution to the direction of the third stirring tank.
- the first stirring tank includes a tank body, the bottom of the tank body is inclined downward and converges, and a feeding port is provided at the bottom of the converging place, and the two ends of the feeding port extend to the tank
- the inner wall of the body, the bottom of the feeding port extends downward;
- the inside of the feeding port is provided with a rotating roller, the rotating shaft of the rotating roller is connected to the output shaft of the first motor through a sprocket chain assembly, and the first motor is fixedly mounted on the first
- the rotating roller has a rectangular structure, and the two opposite side walls are convex outwards, and the distance between the two raised arcs is adapted to the width of the feeding port.
- the distance between the side walls is smaller than the width of the feeding opening, and the outer wall of the rotating roller is covered with a first sealing rubber sleeve;
- the filter structure includes a receiving box, a filter screen installed inside the receiving box;
- the receiving box includes two side plates, a vertical plate fixed between the two side plates, and the two side plates are respectively fixed against On the top of both ends of the tank body, the bottom of the vertical plate is fixed against the top of the side wall of the tank body; the filter screen is fixed between the two side plates, and the filter screen is located on the side close to the center of the second stirring tank.
- the bottom is bent toward one side of the vertical plate to form a semicircular filter tank.
- the outer wall of the filter tank is fixed on the side wall of the vertical plate; a screw is installed between the two side plates through a bearing frame, and one end of the screw runs through the side wall.
- the end is connected with the output shaft of the third motor through the transmission of the sprocket chain assembly; a slider is arranged on the screw, and a scraper is fixed on the slider, and the scraper is placed in the filter tank and against the inner wall of the filter tank Sliding; there is a slag discharge port on the side plate far away from the third motor.
- the slag discharge port has an arc-shaped structure and is adapted to the shape of the bottom of the filter tank.
- the mouth forms a shielding block; the bottom of the slag discharge port is provided with a diversion groove, the diversion groove is arranged obliquely, and the lower end of the inclination extends to the collection frame, and the collection frame is fixed on the vertical plate through a bracket.
- a limit groove is provided on the outer edge of the slag discharge opening, the top of the limit groove is open, the groove width of the limit groove is adapted to the thickness of the baffle plate, and the limit groove is opened corresponding to the slag discharge port.
- the blanking structure includes a collection box, the top of the side wall of the collection box is provided with a feed port, and the collection box is fixed with extension plates at both ends of the feed port, and the two extension plates pass through
- the bearing turret is equipped with a blanking roller, and the rotating shaft of the blanking roller is connected to the output shaft of the fourth motor through a sprocket chain assembly.
- the fourth motor is installed on the top of the collection box;
- the bottom of the flow plate close to the unloading roller is fixed with a support plate, the support plate has an arc-shaped structure, and is adapted to the shape of the outer wall of the unloading roller, and the deflector is inclined downward toward the side away from the unloading roller;
- the outer wall of the lower material roller is provided with a cutting hole corresponding to the outer wall of the second mixing tank, and the outer coating of the cutting hole is provided with a second sealing rubber sleeve. The bottom of the second sealing rubber sleeve is sealed and rotated with the outer wall of the lower material roller.
- the feeding roller is provided with a radial passage through which the width of the feeding passage is smaller than the width of the feeding opening;
- the outer wall of the feeding roller is symmetrically provided with two grooves, the grooves extend along the axis direction, and the grooves
- the length of the groove is adapted to the length of the bottom of the discharge port, and the width of the groove is adapted to the width of the discharge port; the arc length between the port of the groove in the counterclockwise direction and the port of the passage is greater than the width of the bottom of the discharge port .
- the cross section of the groove is fan-shaped, and when the groove rotates to the deflector, the groove wall on one side of the groove is inclined downward, and the lower end of the slope is higher than the deflector.
- the top of the feeder, and the unloading roller keeps the bottom of the unloading port blocked.
- the present invention provides a milk of lime anti-sedimentation process and its treatment device, which uses lanthanum chloride solution as an additive, which can effectively prevent the milk of lime solution from settling;
- the matched treatment device includes a first stirring tank and a second stirring tank ,
- the third stirring tank, the bottom of the first stirring tank is equipped with a filter structure, which can remove large particles of insoluble matter in the lime milk solution;
- the design of the liquid storage tank, drain pipe, flow valve, and solenoid valve can facilitate the control of chlorination
- the addition of lanthanum solution realizes the process of adding while stirring, so that the lanthanum chloride solution and the milk of lime solution are fully contacted and mixed;
- the bottom of the feeding port of the second stirring tank is equipped with a feeding structure, which can be used for separate discharge and collection
- the sediment can also guide the lime milk solution to the direction of the third stirring tank, which can not only discharge and transfer the sediment at the bottom of the second stirring tank, but also make the lime milk solution flow smoothly to
- Fig. 1 is the process flow chart of a kind of lime milk anti-sedimentation technology that provides in the specific embodiment of the present invention
- Fig. 2 is the structural representation of a kind of milk of lime anti-sedimentation treatment device provided in the specific embodiment of the present invention
- Fig. 3 is the structural representation of the first stirring tank provided in the specific embodiment of the present invention.
- Fig. 4 is the structural representation of the filtering structure provided in the specific embodiment of the present invention.
- Fig. 5 is a schematic diagram of the internal structure of the filtering structure provided in a specific embodiment of the present invention.
- Fig. 6 is a schematic diagram of the matching structure of the second stirring tank and the blanking structure provided in the specific embodiment of the present invention.
- the first stirring tank; 110 the tank body; 120, the feeding port; 130, the rotating roller; 140, the first motor; 150, the first sealing rubber sleeve; 160, the stirring shaft; 170, the second motor; 200,
- a kind of milk of lime anti-sedimentation process is disclosed in the specific embodiment of the present invention, comprises the following steps:
- the content of calcium hydroxide in the purchased lime is 89% to 95%; the concentration of milk of lime solution is controlled between 1.0-4.0mol/L; the content of alkaline substances in the milk of lime solution is guaranteed so that Subsequent alkaline saponification.
- step S3 the settling time is 2-5 minutes, so that the initial sediment can be settled and separated.
- step S5 the stirring time of the second stirring tank is 5 to 10 minutes, and a lanthanum chloride solution with a concentration of 1.0mol/L is added during the stirring process; and the volume ratio of the lanthanum chloride solution to the milk of lime solution is The ratio is 1:20 ⁇ 1:40, and the lanthanum chloride solution can be added by adding materials while stirring, so that the lanthanum chloride solution and the lime milk solution are fully mixed.
- Example 1 S1, slurry mixing, inject clear water into lime with a calcium hydroxide content of 89% in the first stirring tank, and stir to make a 2mol/L milk of lime solution;
- the calcium hydroxide content in the first stirring tank is that 95% lime is poured into clear water, and is stirred, makes 2mol/L lime milk solution;
- the present invention provides a treatment device for milk of lime anti-sedimentation process, including a frame 800, a first stirring tank 100 and a second stirring tank 200 installed on the frame from top to bottom , the third stirring tank 300; a filtering structure 400 is arranged below the feeding port of the first stirring tank 100, and the filtering structure 400 is installed on the top side of the second stirring tank 200, and the filtrate passing through the filtering structure 400 directly falls In the second stirring tank 200; the top of the second stirring tank 200 is provided with a liquid storage tank 500 for storing lanthanum chloride solution, and the bottom of the liquid storage tank 500 is connected with a drain pipe 510, and the drain pipe 510 is from top to bottom A flow valve 520 and a solenoid valve 530 are installed in sequence at the bottom; a feeding structure 600 is installed at the bottom of the feeding port of the second stirring tank 200, and the feeding structure 600 can be used to separately discharge and collect sediments, and can also guide the milk of lime solution to the third Stirring tank 300
- the above-mentioned treatment device for milk of lime anti-sedimentation process has a novel structure, including a first stirring tank, a second stirring tank, and a third stirring tank.
- the bottom of the first stirring tank is provided with a filtering structure, which can remove the lime milk solution.
- the design of the liquid storage tank, drain pipe, flow valve, and solenoid valve can facilitate the control of the addition of lanthanum chloride solution, and realize the process of adding while stirring, so that the lanthanum chloride solution and the milk of lime solution are fully Contact mixing;
- the bottom of the feeding port of the second mixing tank is equipped with a feeding structure, which can be used to discharge and collect sediment separately, and can also guide the milk of lime solution to the direction of the third mixing tank, which can discharge and transfer the first mixing tank.
- the sediment at the bottom of the second stirring tank can also make the lime milk solution flow smoothly to the third stirring tank, so as to realize the overall automatic operation and the continuity of the process, and effectively improve the work efficiency.
- the first stirring tank 100 comprises a tank body 110, the bottom of the tank body 110 is inclined downwards and gathers and is provided with a feeding opening 120 at the bottom of the gathering place, and the two ends of the feeding opening 120 extend to
- the inner wall of the tank body 110 and the bottom of the feeding port 120 extend downward;
- the inside of the feeding port 120 is provided with a rotating roller 130, and the rotating shaft of the rotating roller 130 is connected to the output shaft of the first motor 140 through a sprocket chain assembly.
- a motor 140 is fixedly installed on the outer wall of the first stirring tank 100;
- the rotating roller 130 has a rectangular structure, and the two opposite side walls are all curved outwards, and the distance between the two convex arcs is the same as that of the discharge port.
- the width of 120 is adapted, the distance between the remaining two side walls of the rotating roller 130 is less than the width of the discharge port 120, and the outer wall of the rotating roller 130 is coated with the first sealing rubber sleeve 150; the rotating roller 130 rotates to two raised arcs When the surface is against the side wall of the feeding port 120, it forms a blockage to the feeding port 120, and when the two convex arcs leave the side wall of the feeding port 120, a flow channel for the milk of lime solution to pass is vacated; the structure Designed to provide a large-area discharge port to facilitate the rapid discharge and transfer of the lime milk solution; the interior of the tank body 110 is erected and installed with multiple stirring shafts 160, the rotating shafts of the multiple stirring shafts 160 and the output shaft of the second motor 170 The second motor 170 is fixedly installed on the outer wall of the first stirring tank 100 through the transmission connection of the sprocket chain assembly; the first stirring tank 100, the second stirring tank 200, and the third stirring tank 300 have the same structure.
- the filter structure 400 includes a receiving box 410, a filter screen 420 installed inside the receiving box 410;
- the receiving box 410 includes two side plates 411, a vertical plate 412 fixed between the two side plates 411, and the two side plates 411 are respectively fixed Butt against the top of the two end walls of the tank body 110, the bottom of the vertical plate 412 is fixed against the top of the side wall of the tank body 110;
- the filter screen 420 is fixed between the two side plates 411, and the filter screen 420 is located near the second stirring tank 200 center, the bottom of the filter screen 420 is bent towards the side of the vertical plate to form a semicircular filter tank 430, and the outer wall of the filter tank 430 is fixed on the side wall of the vertical plate 412;
- this structural design can effectively increase the The large filtration area accelerates the quick filtration of the milk of lime solution;
- a lead screw 440 is provided through a bearing frame between the two side plates 411, one end of the lead screw 440 runs through the side wall, and
- the scraper 460 is placed in the filter tank 430 and slides against the inner wall of the filter tank 430; the side far away from the third motor 450
- a slag outlet 413 is provided on the plate 411.
- the slag outlet 413 has an arc-shaped structure and is adapted to the shape of the bottom of the filter tank 430.
- a baffle 470 is provided on the outside of the slag outlet 413. The baffle 470 can close the slag outlet.
- the filter tank can be scraped and cleaned by the scraper moving with the slider, and the filtered large-grain insoluble matter can be scraped and pushed, so that the large-grain insoluble matter can be discharged from the slag discharge port;
- slag discharge Below the mouth 413 is provided with a diversion groove 480, the diversion groove 480 is installed obliquely, and the lower end of the inclination extends to the collection frame 490, the collection frame 490 is fixed on the vertical plate 412 by a bracket, and the large particle insolubles along the guide The launder flows into the collection frame for uniform collection.
- the outer edge of the slag discharge port 413 is provided with a limit groove 414, the top of the limit groove 414 is open, the groove width of the limit groove 414 is adapted to the thickness of the baffle plate 470, and the limit groove 414 is opened corresponding to the slag discharge port 413
- a resisting sealing fit is formed in the groove 414 to form a seal to the slag discharge port 413; this structural design can facilitate the adjustment of the baffle plate so as to realize the sealing or opening of the slag discharge port.
- the blanking structure 600 includes a collection box 610, the top of the side wall of the collection box 610 is provided with a feed port 620, and the collection box 610 is fixed with extension plates 630 at both ends of the feed port 620, between the two extension plates 630
- the unloading roller 640 is arranged on the bearing turret, and the rotating shaft of the unloading roller 640 is connected with the output shaft of the fourth motor 650 through a sprocket chain assembly.
- the fourth motor 650 is installed on the top of the collecting box 610;
- a deflector 660 is provided, and the bottom of the deflector 660 near the unloading roller 640 is fixed with a support plate 670.
- the support plate 670 has an arc-shaped structure and is adapted to the shape of the outer wall of the unloading roller 640.
- the deflector 660 It is inclined downward toward the side away from the unloading roller 640; the unloading opening of the second stirring tank 200 is provided with a cutting opening corresponding to the outer wall of the unloading roller 640, and the outer covering sleeve of the cutting opening is provided with a second sealing rubber sleeve 700, the bottom of the second sealing rubber sleeve 700 and the outer wall shape of the unloading roller 640 are sealed and rotated;
- the feeding roller 640 is provided with a passage 641 passing through in the radial direction, and the width of the passage 641 is smaller than the width of the feeding opening; the outer wall of the feeding roller 640 is symmetrically provided with two grooves 642, and the grooves 642 are arranged along the axis direction, the length of the groove 642 is adapted to the length of the bottom of the feeding port, and the width of the groove 642 is adapted to the width of the feeding port; the arc between the port of the groove 642 and the port of the passage 641
- the length is longer than the bottom width of the feeding port;
- the design of the groove can be used to accept the sediment, and the transfer of the sediment can be realized by driving the feeding roller to rotate, and the sealing of the feeding port of the second mixing tank can be maintained, effectively Prevent seepage; and the design of the feeding channel can be used to guide the transfer of the lime milk solution to the third mixing tank; clever use of the misalignment design between the groove and the feeding channel simplifies the structural design and improves work
- the cross section of the groove 642 has a fan-shaped structure.
- the groove 642 rotates to the deflector 660, one side of the groove 642 slopes downward, and the lower end of the slope is higher than the top of the deflector 660. , and the unloading roller 640 keeps the bottom of the unloading port blocked; this structural design can ensure that the material entering the groove can be completely sent to the collection box for subsequent unified cleaning.
- a slag discharge pipe is communicated with the bottom of the collection box, and a switch valve is provided on the slag discharge pipe.
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Abstract
一种石灰乳防沉降工艺及其处理装置，其采用氯化镧溶液作为添加剂，可有效防止石灰乳溶液出现沉降；匹配设置的处理装置，包括第一搅拌槽（100）、第二搅拌槽（200）、第三搅拌槽（300），第一搅拌槽（100）的底部设有过滤结构（400），可去除石灰乳溶液中的大颗粒不溶物；储液箱（500）、排液管（510）、流量阀（520）、电磁阀（530）的设计，可方便控制氯化镧溶液的添加，实现边搅动边添加的工艺，使氯化镧溶液与石灰乳溶液充分的接触混合；第二搅拌槽（200）的下料口（120）底部安装有下料结构（600），下料结构（600）可用以单独排出收集沉淀物、也可引导石灰乳溶液往第三搅拌槽（300）方向输送，实现整体的自动化操作、及工艺的连贯性，可有效提高工作效率及防沉降效果。
Description
本发明涉及石灰乳防沉降领域，更具体的，涉及一种石灰乳防沉降工艺及其处理装置。
现有稀土湿法冶炼过程中，用碱性物质皂化有机相是必不可少的流程，前期大量采用氨水皂化，氨水皂化成本低，但皂化后产生的废水中氨氮含量高，不符合环保要求；后面改用液碱皂化，虽然废水中氨氮含量问题解决了，但盐分含量又高了，且成本较高；现为了兼顾环保与低成本改用石灰进行处理，但在实际生产中，提前备好的石灰乳溶液容易沉降，达不到需要效果，影响生产效率；因此，需要对石灰乳溶液进行处理防止沉降。
为了克服现有技术的缺陷，本发明所要解决的技术问题在于提出一种石灰乳防沉降工艺及其处理装置，其在工艺上有效防止石灰乳溶液出现沉降，并通过处理装置进行匹配工艺流程，可有效提高工作效率及防沉降效果。
为达此目的，本发明采用以下的技术方案：
本发明提供了一种石灰乳防沉降工艺，包括以下步骤：
S1、调浆，往第一搅拌槽内的石灰中注入清水，并进行搅拌，制成石灰乳溶液；
S2、使用过滤结构对石灰乳溶液进行过滤，去除大颗粒不溶物，滤出液转移至第二搅拌槽内；
S3、石灰乳溶液于第二搅拌槽内进行沉降；
S4、去除第二搅拌槽底部的沉降物；
S5、第二搅拌槽启动，并同步往第二搅拌槽内添加氯化镧溶液；
S6、将混合完成后的石灰乳溶液转移至第三搅拌槽内存储，并设定时间进行间歇搅动。
在本发明较佳的技术方案中，在S1步骤中，采购的石灰中氢氧化钙含量为89%~95%；石灰乳溶液浓度控制在1.0-4.0mol/L之间。
在本发明较佳的技术方案中，在S3步骤中，沉降时间为2~5min。
在本发明较佳的技术方案中，在S5步骤中，第二搅拌槽的搅拌时长为5~10分钟，在搅拌的过程中添加浓度为1.0mol/L的氯化镧溶液；且氯化镧溶液与石灰乳溶液体积比为1：20~1：40。
本发明还提供了一种石灰乳防沉降工艺的处理装置，包括机架，由上至下安装在机架上的第一搅拌槽、第二搅拌槽、第三搅拌槽；第一搅拌槽的下料口下方设有过滤结构，过滤结构安装在第二搅拌槽的顶部一侧，且途径过滤结构的滤出液直接掉落第二搅拌槽内；第二搅拌槽的上方设有用于存储氯化镧溶液的储液箱，储液箱的底部连通设有排液管，排液管上由上至下依次安装有流量阀及电磁阀；第二搅拌槽的下料口底部安装有下料结构，下料结构可用以单独排出收集沉淀物、也可引导石灰乳溶液往第三搅拌槽方向输送。
在本发明较佳的技术方案中，第一搅拌槽包括槽体，槽体的底部朝下倾斜汇拢、且于汇拢处的底部设有下料口，下料口的两端延伸至槽体的内壁，下料口的底部朝下延伸；下料口的内部架设有转动辊，转动辊的转轴与第一电机的输出轴通过链轮链条组件传动连接，第一电机固定安装在第一搅拌槽的外壁；转动辊呈矩形状结构、且两相对侧壁均呈朝外弧形凸起状，两凸起弧面之间的间距与下料口的宽度适配，转动辊的余下两侧壁之间的间距小于下料口的宽度，转动辊的外壁包覆有第一密封胶套；转动辊旋转至两凸起弧面抵持下料口的侧壁时、形成对下料口的封堵，两凸起弧面离开下料口侧壁时，空出用于石灰乳溶液通过的流道；槽体的内部架设安装有多条搅拌轴，多条搅拌轴的转轴与第二电机的输出轴通过链轮链条组件传动连接，第二电机固定安装在第一搅拌槽的外壁；第一搅拌槽、第二搅拌槽、第三搅拌槽结构相同。
在本发明较佳的技术方案中，过滤结构包括承接盒，安装在承接盒内部的滤网；承接盒包括两侧板，固定在两侧板之间的立板，两侧板分别固定抵持在槽体的两端壁顶部，立板的底部固定抵持在槽体的侧壁顶部；滤网固定在两侧板之间，滤网位于靠近第二搅拌槽中心的一侧，滤网的底部朝立板一侧弯折、形成半圆状的滤槽，滤槽的外壁固定固定在立板的侧壁上；两侧板之间通过轴承架设有丝杠，丝杠的一端贯穿侧壁、且端部与第三电机的输出轴通过链轮链条组件传动连接；丝杠上设有滑块，滑块上固定设有刮板，刮板置于滤槽内、且抵持滤槽的内壁滑动；远离第三电机的侧板上设有排渣口，排渣口呈弧形状结构、且与滤槽的底部形状适配，排渣口的外侧设有挡板，挡板可对排渣口形成遮挡封堵；排渣口的下方设有导流槽，导流槽倾斜设置、且倾斜较低端延伸至收集框处，收集框通过托架固定在立板上。
在本发明较佳的技术方案中，排渣口的外侧边缘设有限位槽，限位槽的顶部敞开，限位槽的槽宽与挡板的厚度适配，限位槽对应排渣口开设有缺口；排渣口上方设有凸柱，挡板经卡环转动卡于凸柱上，挡板呈半圆状结构，挡板可旋转进入限位槽内、于限位槽内形成抵持密封配合，对排渣口形成封堵。
在本发明较佳的技术方案中，下料结构包括收集箱，收集箱的侧壁顶部开设有进料口，收集箱于进料口的两端固定设有延伸板，两延伸板之间通过轴承转动架设有下料辊，下料辊的转轴与第四电机的输出轴通过链轮链条组件传动连接，第四电机安装在收集箱的顶部；进料口内侧固定设有导流板，导流板靠近下料辊一侧底部固定设有支撑板，支撑板呈弧形状结构、且与下料辊的外壁形状适配，导流板朝远离下料辊的一侧向下倾斜设置；第二搅拌槽的下料口处对应下料辊的外壁设有切削口，切削口的外侧包覆套设有第二密封胶套，第二密封胶套的底部与下料辊的外壁形状密封转动配合；下料辊上设有沿径向贯穿的过料通道，过料通道的宽度小于下料口的宽度；下料辊的外壁对称设有两个凹槽，凹槽沿轴线方向延伸，凹槽长度与下料口的底部长度适配，凹槽的宽度与下料口的宽度适配；凹槽的端口逆时针方向到过料通道的端口之间的弧长大于下料口的底部宽度。
在本发明较佳的技术方案中，凹槽的截面呈扇形状结构，凹槽旋转至导流板处时，凹槽的一侧槽壁向下倾斜、且倾斜较低端高于导流板的顶端，且下料辊对下料口底部维持封堵。
本发明的有益效果为：
本发明提供的一种石灰乳防沉降工艺及其处理装置，其采用氯化镧溶液作为添加剂，可有效防止石灰乳溶液出现沉降；匹配设置的处理装置，包括第一搅拌槽、第二搅拌槽、第三搅拌槽，第一搅拌槽的底部设有过滤结构，可去除石灰乳溶液中的大颗粒不溶物；储液箱、排液管、流量阀、电磁阀的设计，可方便控制氯化镧溶液的添加，实现边搅动边添加的工艺，使氯化镧溶液与石灰乳溶液充分的接触混合；第二搅拌槽的下料口底部安装有下料结构，下料结构可用以单独排出收集沉淀物、也可引导石灰乳溶液往第三搅拌槽方向输送，既可排出及转移第二搅拌槽底部的沉淀物，也可使石灰乳溶液顺利的流至第三搅拌槽，实现整体的自动化操作，及工艺的连贯性；整体工艺及装置的设计与配合，其在工艺上有效防止石灰乳溶液出现沉降，通过处理装置进行匹配工艺流程，可有效提高工作效率及防沉降效果。
附图说明
图1是本发明的具体实施例中提供的一种石灰乳防沉降工艺的工艺流程图；
图2是本发明的具体实施例中提供的一种石灰乳防沉降处理装置的结构示意图；
图3是本发明的具体实施例中提供的第一搅拌槽的结构示意图；
图4是本发明的具体实施例中提供的过滤结构的结构示意图；
图5是本发明的具体实施例中提供的过滤结构的内部结构示意图；
图6是本发明的具体实施例中提供的第二搅拌槽、下料结构的配合结构示意图；
图中：
100、第一搅拌槽；110、槽体；120、下料口；130、转动辊；140、第一电机；150、第一密封胶套；160、搅拌轴；170、第二电机；200、第二搅拌槽；300、第三搅拌槽；400、过滤结构；410、承接盒；411、侧板；412、立板；413、排渣口；414、限位槽；415、缺口；420、滤网；430、滤槽；440、丝杠；450、第三电机；460、刮板；470、挡板；480、导流槽；490、收集框；500、储液箱；510、排液管；520、流量阀；530、电磁阀；600、下料结构；610、收集箱；620、进料口；630、延伸板；640、下料辊；641、过料通道；642、凹槽；650第四电机；660、导流板；670、支撑板；700、第二密封胶套；800、机架。
具体实施方式
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。
如图1所示，本发明的具体实施例中公开了一种石灰乳防沉降工艺，包括以下步骤：
S1、调浆，往第一搅拌槽内的石灰中注入清水，并进行搅拌，制成石灰乳溶液；
S2、使用过滤结构对石灰乳溶液进行过滤，去除大颗粒不溶物，滤出液转移至第二搅拌槽内；
S3、石灰乳溶液于第二搅拌槽内进行沉降；
S4、去除第二搅拌槽底部的沉降物；
S5、第二搅拌槽启动，并同步往第二搅拌槽内添加氯化镧溶液；
S6、将混合完成后的石灰乳溶液转移至第三搅拌槽内存储，并设定时间进行间歇搅动。
上述的一种石灰乳防沉降工艺，其采用氯化镧溶液作为添加剂，可有效防止石灰乳溶液出现沉降；并且，还可对石灰乳溶液过程中的大颗粒不溶物，以及初始的沉降物进行分离及转移，制备高质量的石灰乳溶液。
进一步地，在S1步骤中，采购的石灰中氢氧化钙含量为89%~95%；石灰乳溶液浓度控制在1.0-4.0mol/L之间；保证石灰乳溶液中的碱性物质含量，以便后续进行碱性皂化。
进一步地，在S3步骤中，沉降时间为2~5min，使其初始的沉降物得以沉降分离。
进一步地，在S5步骤中，第二搅拌槽的搅拌时长为5~10分钟，在搅拌的过程中添加浓度为1.0mol/L的氯化镧溶液；且氯化镧溶液与石灰乳溶液体积比为1：20~1：40，可通过边搅拌边加料的方式添加氯化镧溶液，使得氯化镧溶液与石灰乳溶液充分混合。
实施例1中：S1、调浆，往第一搅拌槽内的氢氧化钙含量为89%石灰中注入清水，并进行搅拌，制成2mol/L石灰乳溶液；
S2、使用过滤结构对石灰乳溶液进行过滤，去除大颗粒不溶物，滤出液转移至第二搅拌槽内；
S3、石灰乳溶液于第二搅拌槽内进行沉降3min；
S4、去除第二搅拌槽底部的沉降物；
S5、第二搅拌槽启动，并同步往第二搅拌槽内添加氯化镧溶液，搅拌时长为7分钟，氯化镧溶液与石灰乳溶液体积比为1：35；
S6、将混合完成后的石灰乳溶液转移至第三搅拌槽内存储，并设定时间进行间歇搅动。
其中，在S4步骤中，分离出较多的沉降物；S6步骤中得到合格的石灰乳溶液。
实施例2中：
S1、调浆，往第一搅拌槽内的氢氧化钙含量为92%石灰中注入清水，并进行搅拌，制成2mol/L石灰乳溶液；
S2、使用过滤结构对石灰乳溶液进行过滤，去除大颗粒不溶物，滤出液转移至第二搅拌槽内；
S3、石灰乳溶液于第二搅拌槽内进行沉降5min；
S4、去除第二搅拌槽底部的沉降物；
S5、第二搅拌槽启动，并同步往第二搅拌槽内添加氯化镧溶液，搅拌时长为10分钟，氯化镧溶液与石灰乳溶液体积比为1：30；
S6、将混合完成后的石灰乳溶液转移至第三搅拌槽内存储，并设定时间进行间歇搅动。
其中，在S4步骤中，分离出较实施例1稍多的沉降物；S6步骤中得到合格的石灰乳溶液。
实施例3中：
S1、调浆，往第一搅拌槽内的氢氧化钙含量为95%石灰中注入清水，并进行搅拌，制成2mol/L石灰乳溶液；
S2、使用过滤结构对石灰乳溶液进行过滤，去除大颗粒不溶物，滤出液转移至第二搅拌槽内；
S3、石灰乳溶液于第二搅拌槽内进行沉降5min；
S4、去除第二搅拌槽底部的沉降物；
S5、第二搅拌槽启动，并同步往第二搅拌槽内添加氯化镧溶液，搅拌时长为10分钟，氯化镧溶液与石灰乳溶液体积比为1：25；
S6、将混合完成后的石灰乳溶液转移至第三搅拌槽内存储，并设定时间进行间歇搅动。
其中，在S4步骤中，分离出较实施例2更多的沉降物；S6步骤中得到合格的石灰乳溶液。
如图2至图6所示，本发明提供了一种石灰乳防沉降工艺的处理装置，包括机架800，由上至下安装在机架上的第一搅拌槽100、第二搅拌槽200、第三搅拌槽300；第一搅拌槽100的下料口下方设有过滤结构400，过滤结构400安装在第二搅拌槽200的顶部一侧，且途径过滤结构400的滤出液直接掉落第二搅拌槽200内；第二搅拌槽200的上方设有用于存储氯化镧溶液的储液箱500，储液箱500的底部连通设有排液管510，排液管510上由上至下依次安装有流量阀520及电磁阀530；第二搅拌槽200的下料口底部安装有下料结构600，下料结构600可用以单独排出收集沉淀物、也可引导石灰乳溶液往第三搅拌槽300方向输送；机架上安装有用以协调控制各仪器的控制面板，流量阀为电磁流量控制阀，流量阀、电磁阀、过滤结构、下料结构，多个搅拌槽的驱动部件均与控制面板电连接。
上述的一种石灰乳防沉降工艺的处理装置，其结构新颖，包括第一搅拌槽、第二搅拌槽、第三搅拌槽，第一搅拌槽的底部设有过滤结构，可去除石灰乳溶液中的大颗粒不溶物；储液箱、排液管、流量阀、电磁阀的设计，可方便控制氯化镧溶液的添加，实现边搅动边添加的工艺，使氯化镧溶液与石灰乳溶液充分的接触混合；第二搅拌槽的下料口底部安装有下料结构，下料结构可用以单独排出收集沉淀物、也可引导石灰乳溶液往第三搅拌槽方向输送，既可排出及转移第二搅拌槽底部的沉淀物，也可使石灰乳溶液顺利的流至第三搅拌槽，实现整体的自动化操作，及工艺的连贯性，有效提高工作效率。
[0070] 进一步地，第一搅拌槽100包括槽体110，槽体110的底部朝下倾斜汇拢、且于汇拢处的底部设有下料口120，下料口120的两端延伸至槽体110的内壁，下料口120的底部朝下延伸；下料口120的内部架设有转动辊130，转动辊130的转轴与第一电机140的输出轴通过链轮链条组件传动连接，第一电机140固定安装在第一搅拌槽100的外壁；转动辊130呈矩形状结构、且两相对侧壁均呈朝外弧形凸起状，两凸起弧面之间的间距与下料口120的宽度适配，转动辊130的余下两侧壁之间的间距小于下料口120的宽度，转动辊130的外壁包覆有第一密封胶套150；转动辊130旋转至两凸起弧面抵持下料口120的侧壁时、形成对下料口120的封堵，两凸起弧面离开下料口120侧壁时，空出用于石灰乳溶液通过的流道；该结构设计，可提供大区域的下料口，方便石灰乳溶液的快速排放及转移；槽体110的内部架设安装有多条搅拌轴160，多条搅拌轴160的转轴与第二电机170的输出轴通过链轮链条组件传动连接，第二电机170固定安装在第一搅拌槽100的外壁；第一搅拌槽100、第二搅拌槽200、第三搅拌槽300结构相同。
进一步地，过滤结构400包括承接盒410，安装在承接盒410内部的滤网420；承接盒410包括两侧板411，固定在两侧板411之间的立板412，两侧板411分别固定抵持在槽体110的两端壁顶部，立板412的底部固定抵持在槽体110的侧壁顶部；滤网420固定在两侧板411之间，滤网420位于靠近第二搅拌槽200中心的一侧，滤网420的底部朝立板一侧弯折、形成半圆状的滤槽430，滤槽430的外壁固定固定在立板412的侧壁上；该结构设计，可有效增大过滤面积，加速石灰乳溶液的快速过滤；两侧板411之间通过轴承架设有丝杠440，丝杠440的一端贯穿侧壁、且端部与第三电机450的输出轴通过链轮链条组件传动连接；丝杠440上设有滑块，滑块上固定设有刮板460，刮板460置于滤槽430内、且抵持滤槽430的内壁滑动；远离第三电机450的侧板411上设有排渣口413，排渣口413呈弧形状结构、且与滤槽430的底部形状适配，排渣口413的外侧设有挡板470，挡板470可对排渣口413形成遮挡封堵；可通过随滑块移动的刮板对滤槽进行刮刷清洁，将滤出的大颗粒不溶物进行刮刷推送，使得大颗粒不溶物从排渣口处排出；排渣口413的下方设有导流槽480，导流槽480倾斜设置、且倾斜较低端延伸至收集框490处，收集框490通过托架固定在立板412上，大颗粒不溶物沿着导流槽流动至收集框内，进行统一的收集。
进一步地，排渣口413的外侧边缘设有限位槽414，限位槽414的顶部敞开，限位槽414的槽宽与挡板470的厚度适配，限位槽414对应排渣口413开设有缺口415；排渣口413上方设有凸柱，挡板470经卡环转动卡于凸柱上，挡板470呈半圆状结构，挡板470可旋转进入限位槽414内、于限位槽414内形成抵持密封配合，对排渣口413形成封堵；该结构设计可方便对挡板进行调节，以便实现排渣口封堵或敞开。
进一步地，下料结构600包括收集箱610，收集箱610的侧壁顶部开设有进料口620，收集箱610于进料口620的两端固定设有延伸板630，两延伸板630之间通过轴承转动架设有下料辊640，下料辊640的转轴与第四电机650的输出轴通过链轮链条组件传动连接，第四电机650安装在收集箱610的顶部；进料口620内侧固定设有导流板660，导流板660靠近下料辊640一侧底部固定设有支撑板670，支撑板670呈弧形状结构、且与下料辊640的外壁形状适配，导流板660朝远离下料辊640的一侧向下倾斜设置；第二搅拌槽200的下料口处对应下料辊640的外壁设有切削口，切削口的外侧包覆套设有第二密封胶套700，第二密封胶套700的底部与下料辊640的外壁形状密封转动配合；
下料辊640上设有沿径向贯穿的过料通道641，过料通道641的宽度小于下料口的宽度；下料辊640的外壁对称设有两个凹槽642，凹槽642沿轴线方向延伸，凹槽642长度与下料口的底部长度适配，凹槽642的宽度与下料口的宽度适配；凹槽642的端口逆时针方向到过料通道641的端口之间的弧长大于下料口的底部宽度；凹槽的设计，可用于承接沉降物，并且可通过带动下料辊转动的方式实现沉降物的转移，并维持第二搅拌槽下料口的封堵，有效防止渗出；而过料通道的设计，则可用于引导石灰乳溶液转移至第三搅拌槽内；巧妙利用凹槽及过料通道之间的错位设计，简化结构设计，提高工作效率。
进一步地，凹槽642的截面呈扇形状结构，凹槽642旋转至导流板660处时，凹槽642的一侧槽壁向下倾斜、且倾斜较低端高于导流板660的顶端，且下料辊640对下料口底部维持封堵；该结构设计，可确保进入凹槽内的物料可完全的送至收集箱内，以便后续的统一清理。
进一步地，收集箱的底部连通设有排渣管，排渣管上设有开关阀。
本发明是通过优选实施例进行描述的，本领域技术人员知悉，在不脱离本发明的精神和范围的情况下，可以对这些特征和实施例进行各种改变或等效替换。本发明不受此处所公开的具体实施例的限制，其他落入本申请的权利要求内的实施例都属于本发明保护的。
Claims (10)
- 一种石灰乳防沉降工艺，其特征在于：包括以下步骤：S1、调浆，往第一搅拌槽内的石灰中注入清水，并进行搅拌，制成石灰乳溶液；S2、使用过滤结构对石灰乳溶液进行过滤，去除大颗粒不溶物，滤出液转移至第二搅拌槽内；S3、石灰乳溶液于第二搅拌槽内进行沉降；S4、去除第二搅拌槽底部的沉降物；S5、第二搅拌槽启动，并同步往第二搅拌槽内添加氯化镧溶液；S6、将混合完成后的石灰乳溶液转移至第三搅拌槽内存储，并设定时间进行间歇搅动。
- 根据权利要求1所述的一种石灰乳防沉降工艺，其特征在于：在S1步骤中，采购的石灰中氢氧化钙含量为89%~95%；石灰乳溶液浓度控制在1.0-4.0mol/L之间。
- 根据权利要求1所述的一种石灰乳防沉降工艺，其特征在于：在S3步骤中，沉降时间为2~5min。
- 根据权利要求1所述的一种石灰乳防沉降工艺，其特征在于：在S5步骤中，第二搅拌槽的搅拌时长为5~10分钟，在搅拌的过程中添加浓度为1.0mol/L的氯化镧溶液；且氯化镧溶液与石灰乳溶液体积比为1：20~1：40。
- 一种用以权利要求1所述的石灰乳防沉降工艺的处理装置，其特征在于：包括机架，由上至下安装在机架上的第一搅拌槽、第二搅拌槽、第三搅拌槽；第一搅拌槽的下料口下方设有过滤结构，过滤结构安装在第二搅拌槽的顶部一侧，且途径过滤结构的滤出液直接掉落第二搅拌槽内；第二搅拌槽的上方设有用于存储氯化镧溶液的储液箱，储液箱的底部连通设有排液管，排液管上由上至下依次安装有流量阀及电磁阀；第二搅拌槽的下料口底部安装有下料结构，下料结构可用以单独排出收集沉淀物、也可引导石灰乳溶液往第三搅拌槽方向输送。
- 根据权利要求5所述的一种石灰乳防沉降工艺的处理装置，其特征在于：第一搅拌槽包括槽体，槽体的底部朝下倾斜汇拢、且于汇拢处的底部设有下料口，下料口的两端延伸至槽体的内壁，下料口的底部朝下延伸；下料口的内部架设有转动辊，转动辊的转轴与第一电机的输出轴通过链轮链条组件传动连接，第一电机固定安装在第一搅拌槽的外壁；转动辊呈矩形状结构、且两相对侧壁均呈朝外弧形凸起状，两凸起弧面之间的间距与下料口的宽度适配，转动辊的余下两侧壁之间的间距小于下料口的宽度，转动辊的外壁包覆有第一密封胶套；转动辊旋转至两凸起弧面抵持下料口的侧壁时、形成对下料口的封堵，两凸起弧面离开下料口侧壁时，空出用于石灰乳溶液通过的流道；槽体的内部架设安装有多条搅拌轴，多条搅拌轴的转轴与第二电机的输出轴通过链轮链条组件传动连接，第二电机固定安装在第一搅拌槽的外壁；第一搅拌槽、第二搅拌槽、第三搅拌槽结构相同。
- 根据权利要求6所述的一种石灰乳防沉降工艺的处理装置，其特征在于：过滤结构包括承接盒，安装在承接盒内部的滤网；承接盒包括两侧板，固定在两侧板之间的立板，两侧板分别固定抵持在槽体的两端壁顶部，立板的底部固定抵持在槽体的侧壁顶部；滤网固定在两侧板之间，滤网位于靠近第二搅拌槽中心的一侧，滤网的底部朝立板一侧弯折、形成半圆状的滤槽，滤槽的外壁固定固定在立板的侧壁上；两侧板之间通过轴承架设有丝杠，丝杠的一端贯穿侧壁、且端部与第三电机的输出轴通过链轮链条组件传动连接；丝杠上设有滑块，滑块上固定设有刮板，刮板置于滤槽内、且抵持滤槽的内壁滑动；远离第三电机的侧板上设有排渣口，排渣口呈弧形状结构、且与滤槽的底部形状适配，排渣口的外侧设有挡板，挡板可对排渣口形成遮挡封堵；排渣口的下方设有导流槽，导流槽倾斜设置、且倾斜较低端延伸至收集框处，收集框通过托架固定在立板上。
- 根据权利要求7所述的一种石灰乳防沉降工艺的处理装置，其特征在于：排渣口的外侧边缘设有限位槽，限位槽的顶部敞开，限位槽的槽宽与挡板的厚度适配，限位槽对应排渣口开设有缺口；排渣口上方设有凸柱，挡板经卡环转动卡于凸柱上，挡板呈半圆状结构，挡板可旋转进入限位槽内、于限位槽内形成抵持密封配合，对排渣口形成封堵。
- 根据权利要求6所述的一种石灰乳防沉降工艺的处理装置，其特征在于：下料结构包括收集箱，收集箱的侧壁顶部开设有进料口，收集箱于进料口的两端固定设有延伸板，两延伸板之间通过轴承转动架设有下料辊，下料辊的转轴与第四电机的输出轴通过链轮链条组件传动连接，第四电机安装在收集箱的顶部；进料口内侧固定设有导流板，导流板靠近下料辊一侧底部固定设有支撑板，支撑板呈弧形状结构、且与下料辊的外壁形状适配，导流板朝远离下料辊的一侧向下倾斜设置；第二搅拌槽的下料口处对应下料辊的外壁设有切削口，切削口的外侧包覆套设有第二密封胶套，第二密封胶套的底部与下料辊的外壁形状密封转动配合；下料辊上设有沿径向贯穿的过料通道，过料通道的宽度小于下料口的宽度；下料辊的外壁对称设有两个凹槽，凹槽沿轴线方向延伸，凹槽长度与下料口的底部长度适配，凹槽的宽度与下料口的宽度适配；凹槽的端口逆时针方向到过料通道的端口之间的弧长大于下料口的底部宽度。
- 根据权利要求9所述的一种石灰乳防沉降工艺的处理装置，其特征在于：凹槽的截面呈扇形状结构，凹槽旋转至导流板处时，凹槽的一侧槽壁向下倾斜、且倾斜较低端高于导流板的顶端，且下料辊对下料口底部维持封堵。
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| CN205061896U (zh) * | 2015-09-18 | 2016-03-02 | 巴彦淖尔市飞尚铜业有限公司 | 化灰系统 |
| CN107551942A (zh) * | 2017-10-25 | 2018-01-09 | 攀钢集团矿业有限公司 | 一种浮选药剂的配制装置 |
| CN110124572A (zh) * | 2019-05-21 | 2019-08-16 | 苏州新工环境工程技术有限公司 | 防堵防结垢石灰溶液配置装置、其自动配液供液方法及其除垢方法 |
| CN213725957U (zh) * | 2020-09-02 | 2021-07-20 | 云南大红山管道有限公司 | 一种自动排渣的石灰乳搅拌槽 |
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