CN110613963A - Multistage precipitation separation system for solid-liquid separation of phosphorized slag - Google Patents
Multistage precipitation separation system for solid-liquid separation of phosphorized slag Download PDFInfo
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- 239000007788 liquid Substances 0.000 title claims abstract description 113
- 239000002893 slag Substances 0.000 title claims abstract description 53
- 238000000926 separation method Methods 0.000 title claims abstract description 45
- 238000001556 precipitation Methods 0.000 title abstract description 6
- 238000004062 sedimentation Methods 0.000 claims abstract description 236
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000013049 sediment Substances 0.000 claims description 33
- 238000004891 communication Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000003814 drug Substances 0.000 abstract description 4
- 239000000706 filtrate Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 229940079593 drug Drugs 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000011259 mixed solution Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 229910021654 trace metal Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/10—Centrifuges combined with other apparatus, e.g. electrostatic separators; Sets or systems of several centrifuges
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
本发明公开了一种用于磷化渣固液分离的多级沉淀分离系统，包括反应釜、主沉淀池、三级次沉淀系统、离心固液分离机、储液罐、若干连接管道、若干输送泵，所述的反应釜侧边设有主沉淀池，所述的主沉淀池的进水口端通过连接管道与反应釜的输出端连接，所述的反应釜与主沉淀池之间的连接管道上设有输送泵，所述的主沉淀池侧边设有三级次沉淀系统，本发明通过设置主沉淀池和三级次沉淀系统对磷化渣混合液进行多次沉淀分离，提高磷化渣固液分离质量，防止由于磷化渣与絮凝剂等药物反应过慢，导致后续滤液中仍含有固态残渣等可能，提高磷化渣固液分离效率，固液分离后的液体中磷化渣含量较少，对环境危害小，提高磷化渣利用率。
The invention discloses a multi-stage sedimentation and separation system for solid-liquid separation of phosphating slag, including a reaction kettle, a main sedimentation tank, a three-stage sedimentation system, a centrifugal solid-liquid separator, a liquid storage tank, several connecting pipes, several A delivery pump, the side of the reaction kettle is provided with a main sedimentation tank, the water inlet end of the main sedimentation tank is connected to the output end of the reaction kettle through a connecting pipe, and the connecting pipe between the reaction kettle and the main sedimentation tank There is a conveying pump on the top, and a three-stage secondary sedimentation system is provided on the side of the main sedimentation tank. The present invention conducts multiple precipitation and separation of the phosphating slag mixture by setting the main sedimentation tank and the three-stage secondary sedimentation system to improve the phosphating The solid-liquid separation quality of the slag prevents the possibility that the subsequent filtrate still contains solid residues due to the slow reaction between the phosphating slag and the flocculant and other drugs, improves the solid-liquid separation efficiency of the phosphating slag, and the phosphating slag in the liquid after solid-liquid separation The content is less, the harm to the environment is small, and the utilization rate of phosphating slag is improved.
Description
【技术领域】【Technical field】
本发明涉及磷化渣处理的技术领域，特别是磷化渣固液分离的技术领域。The invention relates to the technical field of phosphating slag treatment, in particular to the technical field of solid-liquid separation of phosphating slag.
【背景技术】【Background technique】
磷化是常用的表面处理技术，在汽车、化工、船舶、航天航空及家用电器等行业有着广泛应用。在磷化处理过程中，伴随着磷化成膜反应进行的同时，会不断产生磷化渣沉淀物。磷化渣属于危险废物，在《国家危险废物名录》中磷化渣呈酸性，主要含有铁、锌和磷酸根；同时根据所用磷化液的类型不同，还含有一定量的钙、钾、镍等离子。若将磷化渣直接排放到土壤中，其中的磷酸盐等物质经过风化、雨雪淋溶、地表泾流的侵蚀，会产生土壤酸化反应或其他反应，某些微量金属物质还可能在土壤中发生积累。如果磷化渣随天然降水或地表径流进入河流、湖泊或海洋则会污染地面水，过量的磷可能造成水体富营养化；若随地表径流渗入地下则会污染地下水。因此，若对磷化渣不加以处理，排放到环境中，会对土壤、水体造成严重的污染，但现有分离设备分离不彻底，固液分离后的滤液中仍可能含有固态残渣，磷化渣与絮凝剂等药物反应过慢，导致后续滤液中仍含有固态残渣等可能，这些磷化渣不经处理直接排出任会污染环境。Phosphating is a commonly used surface treatment technology, which is widely used in industries such as automobiles, chemicals, ships, aerospace and household appliances. During the phosphating process, along with the phosphating film-forming reaction, phosphating slag precipitates will continue to be generated. Phosphating slag belongs to hazardous waste. In the "National List of Hazardous Wastes", phosphating slag is acidic and mainly contains iron, zinc and phosphate radicals; at the same time, it also contains a certain amount of calcium, potassium and nickel according to the type of phosphating solution used. Plasma. If the phosphating slag is directly discharged into the soil, the phosphate and other substances in it will be eroded by weathering, rain and snow leaching, and surface flow, which will cause soil acidification or other reactions, and some trace metal substances may also be in the soil. Accumulation occurs. If phosphating slag enters rivers, lakes or oceans with natural precipitation or surface runoff, it will pollute surface water. Excessive phosphorus may cause eutrophication of water bodies; if it seeps into the ground with surface runoff, it will pollute groundwater. Therefore, if the phosphating slag is not treated and discharged into the environment, it will cause serious pollution to soil and water bodies. However, the existing separation equipment is not completely separated, and the filtrate after solid-liquid separation may still contain solid residues. Phosphating The phosphating slag reacts too slowly with drugs such as flocculants, resulting in the possibility that the subsequent filtrate may still contain solid residues. These phosphating slags will pollute the environment if they are discharged directly without treatment.
【发明内容】【Content of invention】
本发明的目的就是解决现有技术中的问题，提出一种用于磷化渣固液分离的多级沉淀分离系统，能够提高磷化渣固液分离质量，提高磷化渣固液分离效率，固液分离后的液体中磷化渣含量较少，对环境危害小，提高磷化渣利用率。The purpose of the present invention is to solve the problems in the prior art, and propose a multi-stage precipitation separation system for solid-liquid separation of phosphating slag, which can improve the solid-liquid separation quality of phosphating slag, improve the solid-liquid separation efficiency of phosphating slag, The phosphating slag content in the liquid after solid-liquid separation is small, which is less harmful to the environment and improves the utilization rate of the phosphating slag.
为实现上述目的，本发明提出了一种用于磷化渣固液分离的多级沉淀分离系统，包括反应釜、主沉淀池、三级次沉淀系统、离心固液分离机、储液罐、若干连接管道、若干输送泵，所述的反应釜侧边设有主沉淀池，所述的主沉淀池的进水口端通过连接管道与反应釜的输出端连接，所述的反应釜与主沉淀池之间的连接管道上设有输送泵，所述的主沉淀池侧边设有三级次沉淀系统，所述的主沉淀池的侧边的液体输出端通过连接管道与三级次沉淀系统的输入端连通，所述的主沉淀池与三级次沉淀系统之间的连接管道上设有输送泵，所述的三级次沉淀系统侧边设有储液罐，所述的储液罐的输入端与三级次沉淀系统的澄清液输出端通过连接管道连通，所述的主沉淀池、三级次沉淀系统的沉淀物输出端均通过连接管道与离心固液分离机的输入端连通。In order to achieve the above object, the present invention proposes a multi-stage sedimentation and separation system for solid-liquid separation of phosphating slag, including a reaction kettle, a main sedimentation tank, a three-stage sedimentation system, a centrifugal solid-liquid separator, a liquid storage tank, Several connecting pipes, several conveying pumps, a main sedimentation tank is arranged on the side of the reaction kettle, the water inlet end of the main sedimentation tank is connected with the output end of the reaction kettle through the connecting pipeline, and the reaction kettle is connected to the main sedimentation tank. The connecting pipeline between the tanks is provided with a transfer pump, and the side of the main sedimentation tank is provided with a tertiary sedimentation system, and the liquid output end of the side of the main sedimentation tank is connected to the third-level sedimentation system through the connecting pipeline. The input end is connected, the connecting pipeline between the main sedimentation tank and the tertiary sedimentation system is provided with a transfer pump, and the side of the tertiary sedimentation system is provided with a liquid storage tank, and the liquid storage tank is The input end is connected with the clarified liquid output end of the tertiary sedimentation system through a connecting pipe, and the sediment output end of the main sedimentation tank and the tertiary sedimentation system are all connected with the input end of the centrifugal solid-liquid separator through the connecting pipe.
作为优选，所述的主沉淀池包括上沉淀池、下沉淀池、上沉淀池进液口、上沉淀池出液口、下沉淀池磷化渣出渣口、沉淀斜挡板、上沉淀池池盖，所述的上沉淀池上端设有可以与其配合的上沉淀池池盖，所述的上沉淀池池盖与上沉淀池可拆卸连接，所述的上沉淀池下端设有下沉淀池，所述的上沉淀池下端与下沉淀池连通，所述的上沉淀池一侧侧边设有上沉淀池进液口，所述的上沉淀池进液口另一端与反应釜的输出端连通，所述的上沉淀池上远离上沉淀池进液口的一侧设有上沉淀池出液口，所述的上沉淀池出液口另一端与三级次沉淀系统的输入端连通，所述的上沉淀池内设有若干沉淀斜挡板，所述的下沉淀池一侧侧边设有下沉淀池磷化渣出渣口，所述的下沉淀池磷化渣出渣口另一端与离心固液分离机的输入端连通，所述的上沉淀池底部为向下凸出的尖型底，所述的尖型底最下端设有可以与下沉淀池配合的连通口。Preferably, the main sedimentation tank includes an upper sedimentation tank, a lower sedimentation tank, a liquid inlet of the upper sedimentation tank, a liquid outlet of the upper sedimentation tank, a phosphating slag outlet of the lower sedimentation tank, a sedimentation inclined baffle, an upper sedimentation tank Pool cover, the upper end of the upper sedimentation tank is provided with an upper sedimentation tank cover that can cooperate with it, the upper sedimentation tank cover is detachably connected with the upper sedimentation tank, and the lower end of the upper sedimentation tank is provided with a lower sedimentation tank , the lower end of the upper sedimentation tank is connected with the lower sedimentation tank, the upper sedimentation tank liquid inlet is provided on one side of the upper sedimentation tank, and the other end of the upper sedimentation tank liquid inlet is connected to the output end of the reaction kettle connected, the side of the upper sedimentation tank far away from the liquid inlet of the upper sedimentation tank is provided with an upper sedimentation tank liquid outlet, and the other end of the upper sedimentation tank liquid outlet is connected with the input end of the tertiary sedimentation system, so The upper settling tank is provided with a number of sedimentation inclined baffles, one side of the lower settling tank is provided with a phosphating slag outlet in the lower settling tank, and the other end of the lower settling tank phosphating slag outlet is connected to the The input end of the centrifugal solid-liquid separator is connected, the bottom of the upper sedimentation tank is a pointed bottom protruding downward, and the lowermost end of the pointed bottom is provided with a communication port that can cooperate with the lower sedimentation tank.
作为优选，所述的上沉淀池内靠近上沉淀池进液口处设有可以与上沉淀池进液口配合的第一挡板，所述的第一挡板竖直设置，所述的第一挡板上端与上沉淀池池盖固定连接，所述的第一挡板下端与上沉淀池底部之间设有一定间隙，所述的上沉淀池内靠近上沉淀池出液口处设有可以与上沉淀池出液口配合的第二挡板，所述的第二挡板竖直设置，所述的第二挡板下端与上沉淀池底部固定连接，所述的第二挡板上端与上沉淀池池盖之间设有一定间隙，所述的第二挡板上靠近上沉淀池出液口的一侧设有可以与上沉淀池出液口配合的横挡板，所述的横挡板设于上沉淀池出液口下端。As a preference, a first baffle that can cooperate with the liquid inlet of the upper sedimentation tank is provided near the liquid inlet of the upper sedimentation tank in the upper sedimentation tank, the first baffle is vertically arranged, and the first The upper end of the baffle plate is fixedly connected with the upper sedimentation tank cover, and there is a certain gap between the lower end of the first baffle plate and the bottom of the upper sedimentation tank, and there is a place in the upper sedimentation tank near the liquid outlet of the upper sedimentation tank that can be connected with The second baffle plate matched with the liquid outlet of the upper sedimentation tank, the second baffle plate is vertically arranged, the lower end of the second baffle plate is fixedly connected with the bottom of the upper sedimentation tank, the upper end of the second baffle plate is connected with the upper There is a certain gap between the covers of the sedimentation tank, and the side of the second baffle near the liquid outlet of the upper sedimentation tank is provided with a horizontal baffle that can cooperate with the liquid outlet of the upper sedimentation tank. The plate is arranged at the lower end of the liquid outlet of the upper sedimentation tank.
作为优选，所述的三级次沉淀系统包括第一立式沉淀塔、第二立式沉淀塔、第三立式沉淀塔、沉淀物总输出管、沉淀塔连接管、沉淀物输出口，所述的第一立式沉淀塔上端输入端通过连接管道与主沉淀池液体输出端连通，所述的第一立式沉淀塔与第二立式沉淀塔之间、第二立式沉淀塔与第三立式沉淀塔之间均通过沉淀塔连接管连通，所述的第一立式沉淀塔、第二立式沉淀塔、第三立式沉淀塔下端均设有沉淀物输出口，所述的沉淀物输出口下端横向设有沉淀物总输出管，所述的沉淀物输出口均与沉淀物总输出管连通，所述的沉淀物总输出管的输出端与离心固液分离机的输入端连通。As preferably, the three-stage sedimentation system includes a first vertical sedimentation tower, a second vertical sedimentation tower, a third vertical sedimentation tower, a total sediment output pipe, a sedimentation tower connecting pipe, and a sediment output port. The input end of the upper end of the first vertical settling tower is communicated with the liquid output end of the main settling tank through a connecting pipe, between the first vertical settling tower and the second vertical settling tower, between the second vertical settling tower and the first settling tank The three vertical sedimentation towers are all connected by sedimentation tower connecting pipes, and the lower ends of the first vertical sedimentation tower, the second vertical sedimentation tower, and the third vertical sedimentation tower are all provided with sediment outlets. The lower end of the sediment output port is horizontally provided with a total sediment output pipe, and the sediment output ports are all connected to the total sediment output pipe, and the output end of the total sediment output pipe is connected to the input end of the centrifugal solid-liquid separator. connected.
作为优选，所述的反应釜侧边设有加药箱，所述的加药箱与反应釜上端连通。As a preference, a dosing box is provided on the side of the reaction kettle, and the dosing box communicates with the upper end of the reaction kettle.
作为优选，所述的反应釜上端设有物料输入口。As a preference, a material input port is provided at the upper end of the reaction kettle.
本发明一种用于磷化渣固液分离的多级沉淀分离系统的有益效果：本发明通过设置主沉淀池和三级次沉淀系统对磷化渣混合液进行多次沉淀分离，提高磷化渣固液分离质量，防止由于磷化渣与絮凝剂等药物反应过慢，导致后续滤液中仍含有固态残渣等可能，提高磷化渣固液分离效率，固液分离后的液体中磷化渣含量较少，对环境危害小，提高磷化渣利用率。Beneficial effects of a multi-stage sedimentation and separation system for solid-liquid separation of phosphating slag in the present invention: the present invention conducts multiple precipitation and separation of the phosphating slag mixed solution by setting a main sedimentation tank and a three-stage secondary sedimentation system to improve the phosphating The solid-liquid separation quality of the slag prevents the possibility that the subsequent filtrate still contains solid residues due to the slow reaction between the phosphating slag and the flocculant and other drugs, improves the solid-liquid separation efficiency of the phosphating slag, and the phosphating slag in the liquid after solid-liquid separation The content is less, the harm to the environment is small, and the utilization rate of phosphating slag is improved.
本发明的特征及优点将通过实施例结合附图进行详细说明。The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.
【附图说明】【Description of drawings】
图1是本发明一种用于磷化渣固液分离的多级沉淀分离系统结构示意图。Fig. 1 is a schematic structural diagram of a multi-stage sedimentation separation system for solid-liquid separation of phosphating slag according to the present invention.
图中：1-反应釜、2-主沉淀池、3-三级次沉淀系统、4-离心固液分离机、5-储液罐、6-连接管道、7-输送泵、8-加药箱、11-物料输入口、21-上沉淀池、22-下沉淀池、23-上沉淀池进液口、24-上沉淀池出液口、25-下沉淀池磷化渣出渣口、26-沉淀斜挡板、27-上沉淀池池盖、31-第一立式沉淀塔、32-第二立式沉淀塔、33-第三立式沉淀塔、34-沉淀物总输出管、35-沉淀塔连接管、36-沉淀物输出口、211-第一挡板、212-第二挡板、216-连通口。In the figure: 1-reaction kettle, 2-main sedimentation tank, 3-tertiary sedimentation system, 4-centrifugal solid-liquid separator, 5-liquid storage tank, 6-connecting pipeline, 7-delivery pump, 8-dosing Box, 11-material input port, 21-upper sedimentation tank, 22-lower sedimentation tank, 23-liquid inlet of upper sedimentation tank, 24-liquid outlet of upper sedimentation tank, 25-phosphating slag outlet of lower sedimentation tank, 26-sloping baffle for sedimentation, 27-cover of upper sedimentation tank, 31-first vertical sedimentation tower, 32-second vertical sedimentation tower, 33-third vertical sedimentation tower, 34-sediment total output pipe, 35-sedimentation tower connecting pipe, 36-sediment output port, 211-first baffle plate, 212-second baffle plate, 216-communication port.
【具体实施方式】【Detailed ways】
为使本发明的目的、技术方案和优点更加清楚明了，下面通过附图及实施例，对本发明进行进一步详细说明。但是应该理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限制本发明的范围。此外，在以下说明中，省略了对公知结构和技术的描述，以避免不必要地混淆本发明的概念。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.
参阅图1，本发明一种用于磷化渣固液分离的多级沉淀分离系统，包括反应釜1、主沉淀池2、三级次沉淀系统3、离心固液分离机4、储液罐5、若干连接管道6、若干输送泵7，所述的反应釜1侧边设有主沉淀池2，所述的主沉淀池2的进水口端通过连接管道6与反应釜1的输出端连接，所述的反应釜1与主沉淀池2之间的连接管道6上设有输送泵7，所述的主沉淀池2侧边设有三级次沉淀系统3，所述的主沉淀池2的侧边的液体输出端通过连接管道6与三级次沉淀系统3的输入端连通，所述的主沉淀池2与三级次沉淀系统3之间的连接管道6上设有输送泵7，所述的三级次沉淀系统3侧边设有储液罐5，所述的储液罐5的输入端与三级次沉淀系统3的澄清液输出端通过连接管道6连通，所述的主沉淀池2、三级次沉淀系统3的沉淀物输出端均通过连接管道6与离心固液分离机4的输入端连通，所述的主沉淀池2包括上沉淀池21、下沉淀池22、上沉淀池进液口23、上沉淀池出液口24、下沉淀池磷化渣出渣口25、沉淀斜挡板26、上沉淀池池盖27，所述的上沉淀池21上端设有可以与其配合的上沉淀池池盖27，所述的上沉淀池池盖27与上沉淀池21可拆卸连接，所述的上沉淀池21下端设有下沉淀池22，所述的上沉淀池21下端与下沉淀池22连通，所述的上沉淀池21一侧侧边设有上沉淀池进液口23，所述的上沉淀池进液口23另一端与反应釜1的输出端连通，所述的上沉淀池21上远离上沉淀池进液口23的一侧设有上沉淀池出液口24，所述的上沉淀池出液口24另一端与三级次沉淀系统3的输入端连通，所述的上沉淀池21内设有若干沉淀斜挡板26，所述的下沉淀池22一侧侧边设有下沉淀池磷化渣出渣口25，所述的下沉淀池磷化渣出渣口25另一端与离心固液分离机4的输入端连通，所述的上沉淀池21底部为向下凸出的尖型底，所述的尖型底最下端设有可以与下沉淀池22配合的连通口216，所述的上沉淀池21内靠近上沉淀池进液口23处设有可以与上沉淀池进液口23配合的第一挡板211，所述的第一挡板211竖直设置，所述的第一挡板211上端与上沉淀池池盖27固定连接，所述的第一挡板211下端与上沉淀池21底部之间设有一定间隙，所述的上沉淀池21内靠近上沉淀池出液口24处设有可以与上沉淀池出液口24配合的第二挡板212，所述的第二挡板212竖直设置，所述的第二挡板212下端与上沉淀池21底部固定连接，所述的第二挡板212上端与上沉淀池池盖27之间设有一定间隙，所述的第二挡板212上靠近上沉淀池出液口24的一侧设有可以与上沉淀池出液口24配合的横挡板13，所述的横挡板13设于上沉淀池出液口24下端，所述的三级次沉淀系统3包括第一立式沉淀塔31、第二立式沉淀塔32、第三立式沉淀塔33、沉淀物总输出管34、沉淀塔连接管35、沉淀物输出口36，所述的第一立式沉淀塔31上端输入端通过连接管道6与主沉淀池2液体输出端连通，所述的第一立式沉淀塔31与第二立式沉淀塔32之间、第二立式沉淀塔32与第三立式沉淀塔33之间均通过沉淀塔连接管35连通，所述的第一立式沉淀塔31、第二立式沉淀塔32、第三立式沉淀塔33下端均设有沉淀物输出口36，所述的沉淀物输出口36下端横向设有沉淀物总输出管34，所述的沉淀物输出口36均与沉淀物总输出管34连通，所述的沉淀物总输出管34的输出端与离心固液分离机4的输入端连通，所述的反应釜1侧边设有加药箱8，所述的加药箱8与反应釜1上端连通，所述的反应釜1上端设有物料输入口11。Referring to Fig. 1, a multi-stage sedimentation and separation system for solid-liquid separation of phosphating slag in the present invention includes a reactor 1, a main sedimentation tank 2, a tertiary sedimentation system 3, a centrifugal solid-liquid separator 4, and a liquid storage tank 5. Several connecting pipes 6, several delivery pumps 7, the side of the reaction kettle 1 is provided with a main sedimentation tank 2, and the water inlet end of the main sedimentation tank 2 is connected to the output end of the reaction kettle 1 through the connecting pipe 6 , the connecting pipe 6 between the reaction kettle 1 and the main sedimentation tank 2 is provided with a transfer pump 7, and the side of the main sedimentation tank 2 is provided with a three-stage secondary sedimentation system 3, and the main sedimentation tank 2 is The liquid output end on the side of the side communicates with the input end of the tertiary sedimentation system 3 through the connecting pipe 6, and the connecting pipe 6 between the main sedimentation tank 2 and the tertiary sedimentation system 3 is provided with a transfer pump 7, The side of the tertiary sedimentation system 3 is provided with a liquid storage tank 5, and the input end of the liquid storage tank 5 communicates with the clarified liquid output end of the tertiary sedimentation system 3 through a connecting pipe 6, and the main The sediment output ends of the sedimentation tank 2 and the three-stage sedimentation system 3 are all communicated with the input end of the centrifugal solid-liquid separator 4 through the connecting pipe 6, and the main sedimentation tank 2 includes an upper sedimentation tank 21, a lower sedimentation tank 22, Upper sedimentation tank liquid inlet 23, upper sedimentation tank liquid outlet 24, lower sedimentation tank phosphating slag outlet 25, sedimentation inclined baffle 26, upper sedimentation tank cover 27, the upper end of the upper sedimentation tank 21 is provided with The upper sedimentation tank cover 27 that can be matched with it, the upper sedimentation tank cover 27 is detachably connected with the upper sedimentation tank 21, the lower end of the upper sedimentation tank 21 is provided with a lower sedimentation tank 22, and the upper sedimentation tank The lower end of 21 communicates with the lower sedimentation tank 22, the upper sedimentation tank 21 is provided with an upper sedimentation tank liquid inlet 23 on one side, and the other end of the upper sedimentation tank liquid inlet 23 is communicated with the output end of the reaction kettle 1 , the side of the upper sedimentation tank 21 away from the liquid inlet 23 of the upper sedimentation tank is provided with an upper sedimentation tank liquid outlet 24, and the other end of the upper sedimentation tank liquid outlet 24 is connected to the tertiary sedimentation system 3 The input end is connected, the upper settling tank 21 is provided with a number of sedimentation inclined baffles 26, and the side of the lower settling tank 22 is provided with a phosphating slag outlet 25 of the lower settling tank, and the lower settling tank The other end of the phosphating slag outlet 25 of the pool is connected with the input end of the centrifugal solid-liquid separator 4. The bottom of the upper sedimentation tank 21 is a pointed bottom protruding downwards, and the bottom of the pointed bottom is provided with A communication port 216 that can cooperate with the lower sedimentation tank 22, and a first baffle plate 211 that can cooperate with the upper sedimentation tank liquid inlet 23 is provided in the upper sedimentation tank 21 near the liquid inlet 23 of the upper sedimentation tank. The first baffle plate 211 is vertically arranged, the upper end of the first baffle plate 211 is fixedly connected with the upper sedimentation tank cover 27, and a certain gap is provided between the lower end of the first baffle plate 211 and the bottom of the upper sedimentation tank 21 , the second baffle plate 212 that can cooperate with the liquid outlet 24 of the upper sedimentation tank is provided in the upper sedimentation tank 21 near the liquid outlet 24 of the upper sedimentation tank, and the second baffle plate 212 is vertically arranged, so The lower end of the second baffle plate 212 is fixedly connected to the bottom of the upper sedimentation tank 21, and the upper end of the second baffle plate 212 is connected to the upper sedimentation tank. A certain gap is provided between the sedimentation tank covers 27, and the side of the second baffle plate 212 close to the liquid outlet 24 of the upper sedimentation tank is provided with a horizontal baffle 13 that can cooperate with the liquid outlet 24 of the upper sedimentation tank. The horizontal baffle 13 is arranged at the lower end of the liquid outlet 24 of the upper sedimentation tank, and the three-stage sedimentation system 3 includes a first vertical sedimentation tower 31, a second vertical sedimentation tower 32, a third vertical sedimentation tower 33. Sediment total output pipe 34, sedimentation tower connecting pipe 35, sediment output port 36, the input end of the upper end of the first vertical sedimentation tower 31 is communicated with the liquid output end of the main sedimentation tank 2 through the connecting pipe 6, the described Between the first vertical settling tower 31 and the second vertical settling tower 32, between the second vertical settling tower 32 and the third vertical settling tower 33, all are communicated by settling tower connecting pipe 35, and described first Vertical settling tower 31, the second vertical settling tower 32, the 3rd vertical settling tower 33 lower ends are all provided with sediment output port 36, described sediment output port 36 lower ends are horizontally provided with sediment total output pipe 34, Described sediment output port 36 is communicated with sediment total output pipe 34, and the output end of described sediment total output pipe 34 is communicated with the input end of centrifugal solid-liquid separator 4, and described reaction kettle 1 side A dosing box 8 is provided, and the dosing box 8 communicates with the upper end of the reactor 1, and the upper end of the reactor 1 is provided with a material input port 11.
本发明工作过程：Working process of the present invention:
本发明一种用于磷化渣固液分离的多级沉淀分离系统在工作过程中，将磷化渣混合液导入反应釜1内，通过加药箱8导入药物与磷化渣混合液反应，反应后的混合液导入主沉淀池2，在主沉淀池2内沉淀，沉淀物通过下沉淀池磷化渣出渣口25排出导入离心固液分离机4进行离心固液分离，主沉淀池2内的液体通过上沉淀池出液口24导入三级次沉淀系统3，通过三级次沉淀系统3的第一立式沉淀塔31、第二立式沉淀塔32、第三立式沉淀塔33进行三次静置沉淀，沉淀物通过沉淀物输出口36导入沉淀物总输出管34，然后排入离心固液分离机4进行离心固液分离，三级次沉淀系统3沉淀后的液体导入储液罐5储存备用。In the working process of the multi-stage sedimentation and separation system for solid-liquid separation of phosphating slag, the phosphating slag mixed solution is introduced into the reactor 1, and the medicine is introduced into the phosphating slag mixed solution through the dosing box 8 to react. The reacted mixed solution is introduced into the main sedimentation tank 2 and precipitated in the main sedimentation tank 2. The sediment is discharged through the phosphating slag outlet 25 of the lower sedimentation tank and introduced into the centrifugal solid-liquid separator 4 for centrifugal solid-liquid separation. The main sedimentation tank 2 The liquid inside is introduced into the tertiary sedimentation system 3 through the liquid outlet 24 of the upper sedimentation tank, and passes through the first vertical sedimentation tower 31, the second vertical sedimentation tower 32, and the third vertical sedimentation tower 33 of the tertiary sedimentation system 3 Perform static precipitation three times, the sediment is introduced into the total sediment output pipe 34 through the sediment output port 36, and then discharged into the centrifugal solid-liquid separator 4 for centrifugal solid-liquid separation, and the liquid precipitated by the three-stage sedimentation system 3 is imported into the storage solution Tank 5 is stored for later use.
上述实施例是对本发明的说明，不是对本发明的限定，任何对本发明简单变换后的方案均属于本发明的保护范围。The above-mentioned embodiment is an illustration of the present invention, not a limitation of the present invention, and any solution after a simple transformation of the present invention belongs to the protection scope of the present invention.
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Application publication date: 20191227 |