CN210030836U - Circulating water device for multi-metal hazardous waste treatment - Google Patents

Circulating water device for multi-metal hazardous waste treatment Download PDF

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Publication number
CN210030836U
CN210030836U CN201920611392.3U CN201920611392U CN210030836U CN 210030836 U CN210030836 U CN 210030836U CN 201920611392 U CN201920611392 U CN 201920611392U CN 210030836 U CN210030836 U CN 210030836U
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CN
China
Prior art keywords
crystallization
cavity
circulating water
circulating
separation
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201920611392.3U
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Chinese (zh)
Inventor
王修海
苟明
张仠武
林光勤
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QINGCHUAN TENWIN METALS DEVELOPMENT Co Ltd
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QINGCHUAN TENWIN METALS DEVELOPMENT Co Ltd
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Priority to CN201920611392.3U priority Critical patent/CN210030836U/en
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Publication of CN210030836U publication Critical patent/CN210030836U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The utility model provides a many metals are circulating water device for hazardous waste handles, the purpose is solved and is adopted the moisturizing technology to carry out many metals hazardous waste handles in, the equipment takes up an area of big and hydrochloric acid volatilizees and the material consumption that produces and the technical problem of adverse environmental impact. The circulating water device comprises a stirring tank and a treatment tank which is divided into a crystallization cavity and a separation cavity by an annular partition plate. In the treatment tank, the crystallization tray is connected through a longitudinal connecting rod and vertically moves under the drive of an elastic connecting rod mechanism. The separation cavity is internally provided with a high-pressure spray header for impacting and separating NaCl crystals at the crystallization disc. The utility model discloses a processing jar is in the same place the appearance and the separation integration of NaCl to through the crystallization dish with higher speed the crystal appearance efficiency and control crystal type so that deposit and filter, thereby the reduction treatment facility takes up an area of. And simultaneously, the utility model discloses a stirred tank and knockout drum keep apart the processing procedure in airtight jar body to reduce the loss of hydrochloric acid and volatilized, be favorable to optimizing the processing environment.

Description

Circulating water device for multi-metal hazardous waste treatment
Technical Field
The utility model belongs to the technical field of the dangerous refuse treatment of many metals technique and specifically relates to a dangerous refuse treatment of many metals uses circulating water device is related to.
Background
In the process of treating multi-metal hazardous wastes by adopting wet method, a large amount of Na+、SO4 2-And the content of the materials is enriched and the materials are circulated in the solution to continuously rise, so that crystallization, pipe blockage and scaling can occur in the subsequent process, and the circulation process is difficult to realize. In order to solve the problems, the applicant adopts a water supplementing process, calculates the consumption of sulfuric acid in the treatment process of the multi-metal hazardous waste by monitoring the specific gravity change of circulating water, and adds hydrochloric acid into the circulating water according to the consumption to enable Na to be contained+And crystallizing and separating out in a NaCl form continuously, and filtering to obtain filtrate, and refluxing the filtrate to the process system without discharging. The applicant filed an invention patent application for this technology and was granted patent number CN 103555953B.
The applicant finds that NaCl is mostly separated out in a floccule form in the process of treating the multi-metal hazardous waste by applying the patent technology, the filtration efficiency is low, and the precipitation treatment is preferably carried out firstly. When the existing sedimentation tank is adopted for treatment, the problems of large occupied area, material consumption caused by volatilization of added hydrochloric acid, adverse environmental influence and the like exist.
Disclosure of Invention
To the above situation, for overcoming prior art's defect, the utility model provides a dangerous waste treatment of polymetallic uses circulating water device has solved and has adopted the moisturizing technology to carry out the dangerous waste treatment of polymetallic, and equipment takes up an area of and volatilizees with hydrochloric acid greatly and the material consumption that produces and the technical problem of adverse environmental impact.
In order to achieve the above object, the utility model provides a following technical scheme:
a water circulating apparatus for multi-metal hazardous waste treatment, comprising:
the top of the tank body is provided with a circulating water inlet and a plurality of material ports, the bottom of the tank body is provided with a circulating water outlet, and the outer wall of the tank body is provided with a heating sleeve;
the treatment tank is provided with an internal accommodating space, the internal accommodating space is divided into a crystallization cavity and a separation cavity by a hollow annular partition plate along the radial direction, and the crystallization cavity is arranged above the separation cavity;
the crystallization disc is movably arranged at the junction of the crystallization cavity and the separation cavity, and the upper surface of the crystallization disc is movably attached to the lower surface of the annular partition plate;
the bottom of the elastic connecting rod mechanism is fixedly connected with the upper surface of the crystallization tray, and the top of the elastic connecting rod mechanism is arranged outside the top of the treatment tank and is driven by external acting force to vertically move the crystallization tray;
the cooling jacket is arranged at the outer side wall of the crystallization cavity;
the high-pressure spray header is fixedly arranged at the position close to the side wall of the top of the separation cavity;
wherein, the side wall of the crystallization cavity is provided with a water inlet which is communicated with a circulating water outlet through a branch pipeline; the side wall of the separation cavity is provided with a water outlet which is communicated with the high-pressure spray header through a branch pipeline; the bottom of the separation cavity is also provided with a feed opening.
Further, the inner wall of the separation cavity is in an inverted cone shape.
Further, the crystallization tray includes:
the tray body is movably arranged in the separation cavity;
the sealing gasket is fixed on the upper surface of the tray body;
the crystallization needles are fixed on the upper surface of the tray body, the bottoms of the crystallization needles are connected with an external control power supply through a circuit, and the needle tips are exposed above the sealing gasket.
Furthermore, the sealing gasket is made of chloroprene rubber.
Further, the elastic link mechanism includes:
the connecting rod is fixed on the upper surface of the tray body;
the top frame is arranged on the outer side of the top of the treatment tank, the lower surface of the top frame is fixedly connected with the connecting rod, and the top frame is driven by external force to vertically move;
the elastic piece is sleeved outside the connecting rod and arranged between the top wall of the treatment tank and the top frame, and has vertical deformation capacity.
Further, the water outlet is arranged on the side wall of the middle part of the separation cavity.
Furthermore, a filter screen is arranged at the water outlet.
The beneficial effects of the utility model reside in that:
1. the utility model discloses a crystallization needle of external control power supply of crystallization dish department accelerates the precipitation rate of NaCl in the circulating water, gives by crystallization needle point and separates out the crystal with the crystal nucleus to the control is separated out the crystal form and is deposited for crystal and non-flocculent, so that follow-up deposit, filtration treatment.
2. The utility model discloses a processing jar is in the same place the appearance and the separation integration of NaCl to through the crystallization dish with higher speed the crystal appearance efficiency and control crystal type so that deposit and filter, thereby the reduction treatment facility takes up an area of.
3. The utility model discloses a stirred tank and knockout drum keep apart the processing procedure in the airtight jar body to reduce the loss of hydrochloric acid and volatilized, be favorable to optimizing the processing environment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a perspective structure diagram of the treatment tank of the present invention.
Fig. 3 is a schematic view of the matching structure of the partition plate and the crystallization tray of the present invention.
Fig. 4 is a schematic diagram of the structure of the crystallization tray of the present invention.
Reference numerals: 10. the device comprises a stirring tank, 20 a treatment tank, 201 an annular partition plate, 1 a crystallization cavity, 2 a separation cavity, 3 a crystallization disc, 31 a disc body, 32 a sealing gasket, 33 a crystallization needle, 5 an elastic connecting rod mechanism, 51 a connecting rod, 52 a top frame, 53 an elastic piece, 6 a cooling jacket, 7 a high-pressure spray header, 91 a circulating water inlet, 92 a material port, 93 a circulating water outlet, 94 a water inlet, 95 a water outlet and 96 a feed port.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the claimed embodiments. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the embodiments of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "radial", and the like refer to the orientation or positional relationship shown in the drawings, which are used for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the embodiments of the present application.
In the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In the embodiments of the present application, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of the embodiments of the present application, the components and arrangements of the specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present application. Moreover, the claimed embodiments may repeat reference numerals and/or letters in the various examples, which have been repeated for purposes of brevity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the examples provided herein provide examples of various specific materials, but one of ordinary skill in the art will recognize the use of other materials.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The utility model discloses application embodiment provides a many metals dangerous waste treatment use circulating water device, include:
as shown in fig. 1, the agitation tank 10 is used for temporarily storing the circulating water when the NaCl precipitation treatment is not required; when the precipitation treatment is needed, hydrochloric acid is added according to the internal circulating water quantity to be stirred and mixed, and the NaCl supersaturated solution is prepared.
The top of the stirring tank 10 is provided with a circulating water inlet 91 and a plurality of material ports 92, and the material ports 92 are used for injecting hydrochloric acid into the tank and monitoring the proportion of circulating water. The bottom of the tank body is provided with a circulating water outlet 93 for the circulating water to flow out when NaCl precipitation is not needed. The outer wall of the tank body is provided with a heating sleeve for separating out materials in the heating pipe during treatment so as to prepare NaCl supersaturated solution.
The processing tank 20 has an inner space. The inner accommodating space is divided into a crystallization cavity 1 and a separation cavity 2 by a hollow annular partition plate 201 along the radial direction, and the crystallization cavity 1 is arranged above the separation cavity 2. NaCl is separated out and crystallized in the crystallization cavity 1; NaCl crystal precipitation and circulating water separation are realized in the separation cavity 2.
The side wall of the crystallization cavity 1 is provided with a water inlet 94 which is communicated with a circulating water outlet 93 through a branch pipeline. When NaCl precipitation treatment is required, a branch line is connected to communicate the circulating water outlet 93 with the water inlet 94, and the hot NaCl supersaturated solution in the stirring tank 10 is introduced into the crystallization chamber 1.
As shown in FIG. 2, a cooling jacket 6 is provided at the outer side wall of the crystallization chamber 1 for cooling the NaCl supersaturated solution to precipitate NaCl.
As shown in fig. 2, the inner wall of the separation chamber 2 is of an inverted cone shape. The precipitated NaCl crystals are collected at the feed opening 96 at the bottom of the inverted cone so that the crystals can be taken out from the separation tank 20.
As shown in fig. 2, fig. 3 and fig. 4, the crystallization disk 3, movably disposed at the junction of the crystallization chamber 1 and the separation chamber 2, includes:
the tray body 31 is movably arranged in the separation cavity 2 and provides support for the separated NaCl crystals.
And the sealing gasket 32 is fixed on the upper surface of the tray body 31 and is used for sealing and attaching the upper surface of the crystallization tray 3 and the lower surface of the annular partition plate 201 during NaCl crystal precipitation treatment so as to prevent the solution in the crystallization cavity 1 from leaking into the separation cavity 2.
And a plurality of crystallization needles 33 fixed on the upper surface of the tray body 31, the bottoms of which are connected with an external control power supply through a circuit, and the needle tips of which are exposed above the sealing pad 32. NaCl precipitation is promoted by an external current according to the principle of electric crystallization. And the needle tip of the crystallization needle 33 is used as a crystal nucleus to shorten the crystallization process, stabilize the crystal structure and avoid generating flocculent amorphous precipitates.
The sealing gasket 32 is made of chloroprene rubber, the service temperature range of the material is-30 ℃ to 90 ℃, and the material has good acid resistance and salt resistance and is adaptive to the environment in the reaction tank 10.
As shown in fig. 1 and 2, the bottom of the elastic linkage mechanism 5 is fixedly connected with the upper surface of the tray body 31, and the top thereof is disposed outside the top of the processing tank 20 and is driven by external force to vertically move the crystallization tray 3. The position of the crystallization tray 3 in the separation tank 10 is controlled by means of the elastic linkage 5 in order to carry out the corresponding processing operation.
The elastic link mechanism 5 includes:
and the connecting rod 51 is fixed on the upper surface of the disc body 31 and used for transmission.
And the top frame 52 is arranged on the outer side of the top of the treatment tank 20, the lower surface of the top frame is fixedly connected with the connecting rod 51, the top frame is connected with an external linear transmission mechanism for use, and the external linear transmission mechanism is driven by external force to vertically move.
The elastic member 53 is sleeved outside the connecting rod 51, is disposed between the top wall of the processing tank 20 and the top frame, and has a vertical deformation capability so as to perform a reciprocating motion.
As shown in fig. 2, the high pressure shower head 7 is fixedly disposed at a side wall near the top of the separation chamber 2. The NaCl crystals moving vertically downward to the crystallization needle 33 in the separation chamber 2 are separated from the crystallization needle 33 by the impact.
As shown in fig. 2, the side wall of the separation chamber 2 is provided with a water outlet 95, which is communicated with the high-pressure shower head 7 through a branch pipeline. The internal circulation is adopted, and the circulating water treated in the separation cavity 2 impacts the separation crystallization needle 33.
The water outlet 95 is arranged at the side wall of the middle part of the separation cavity 2. Avoiding the mutual interference with the precipitated NaCl crystals.
A filter screen is arranged at the water outlet 95. Further ensuring that the extracted circulating water does not contain NaCl crystals.
The using method comprises the following steps:
the method comprises the following steps of mixing the hazardous waste ingredients containing multiple metals, such as HW17, HW21, HW18, HW22, HW23, HW26, HW32, HW34, HW35, HW46, HW47, HW48, HW49 and the like with water with the water content of less than 75 percent according to the weight ratio of 1: 3-5 parts by weight of the components are mixed and pulped to prepare mixed slurry, then sulfuric acid is used for acid leaching, the conventional process flows of purifying, extracting, precipitating and separating metal products and the like are carried out, and finally the obtained solution (hereinafter referred to as circulating water) is introduced into the stirring tank 10 from a circulating water inlet 91 through a pipeline.
Circulating water in the stirring tank 10 is extracted through the material port 92 for detection, and when the specific gravity is less than 1.10, the circulating water directly flows out from the circulating water outlet 93 to a subsequent flow.
When the specific gravity is 1.10-1.15, calculating the consumption of sulfuric acid in the treatment process of the multi-metal hazardous waste (the consumption of the sulfuric acid is calculated according to the consumption of SO)4 2-A meter). The heating jacket is opened, the amount of circulating water in the stirring tank 10 is counted, hydrochloric acid (mass fraction is 31%) in an amount corresponding to the amount of the circulating water is injected from the material port 92, and the supersaturated NaCl solution is prepared by stirring. Then, the circulating water outlet 93 is opened to introduce the circulating water from the water inlet 94 into the treatment tank 20.
The supersaturated NaCl solution is quenched and cooled by a cooling jacket 6 in an independent crystallization cavity formed by sealing and closing the crystallization disk 3 and the annular partition plate 201, so that NaCl is precipitated. At the same time, the external control power is turned on to induce the electro-crystallization at the crystallization needle 33. NaCl under the action of low temperature and electric crystallization takes the needle point of the crystallization needle 33 as a crystal nucleus to quickly form crystals. After the crystallization is completed, the top frame is pressed down by an external linear transmission mechanism, so that the elastic piece 53 is compressed and deformed, the connecting rod 51 drives the crystallization disc 3 to vertically descend until the crystallization disc 3 falls into the separation cavity 2, and the crystallization needle 33 and the high-pressure spray header are positioned on the same horizontal plane. And opening a branch control switch of the water outlet 95, and pumping the circulating water which flows into the separation cavity 2 along with the falling of the crystallization disc 3 to the high-pressure spray header 7. Circulating water impacts the crystallization needle 33 at a high speed to wash NaCl crystals at the needle point down to the separation cavity 2. In order to improve the crystal separation efficiency, a plurality of high-pressure spray headers are preferably regularly distributed for synchronous impact.
After the impact separation of the crystal is completed, standing for a moment, and then circulating water can be extracted from the main pipe of the water outlet 95 for subsequent processes. After extraction, the NaCl crystals were removed and collected from the feed opening 96.

Claims (7)

1. The utility model provides a dangerous refuse treatment of many metals uses circulating water device, includes agitator tank (10), and jar body top is equipped with circulating water entry (91) and a plurality of material mouth (92), bottom are equipped with circulating water export (93), outer wall department is equipped with the heating jacket, its characterized in that, this circulating water device still includes:
the treatment tank (20) is provided with an internal accommodating space, the internal accommodating space is divided into a crystallization cavity (1) and a separation cavity (2) by a hollow annular partition plate (201) along the radial direction, and the crystallization cavity (1) is arranged above the separation cavity (2);
the crystallization disc (3) is movably arranged at the junction of the crystallization cavity (1) and the separation cavity (2), and the upper surface of the crystallization disc is movably attached to the lower surface of the annular partition plate (201);
the bottom of the elastic connecting rod mechanism (5) is fixedly connected with the upper surface of the crystallization disc (3), and the top of the elastic connecting rod mechanism is arranged on the outer side of the top of the treatment tank (20) and is driven by external acting force to vertically move the crystallization disc (3);
the cooling jacket (6) is arranged at the outer side wall of the crystallization cavity (1);
the high-pressure spray header (7) is fixedly arranged on the side wall close to the top of the separation cavity (2);
wherein, the side wall of the crystallization cavity (1) is provided with a water inlet (94) which is communicated with a circulating water outlet (93) through a branch pipeline; a water outlet (95) is arranged on the side wall of the separation cavity (2) and is communicated with the high-pressure spray header (7) through a branch pipeline; the bottom of the separation cavity (2) is also provided with a feed opening (96).
2. A water circulating device according to claim 1, characterized in that the inner wall of the separation chamber (2) is of an inverted cone shape.
3. The water circulating apparatus according to claim 1, wherein the crystallization tray (3) comprises:
the disc body (31) is movably arranged in the separation cavity (2);
a gasket (32) fixed to the upper surface of the tray body (31);
and the crystallization needles (33) are fixed on the upper surface of the tray body (31), the bottoms of the crystallization needles are connected with an external control power supply through a circuit, and the needle tips are exposed above the sealing gasket (32).
4. A water circulating apparatus according to claim 3, wherein the sealing pad (32) is made of neoprene.
5. A water circulating device according to claim 3, wherein the elastic link mechanism (5) comprises: a connecting rod (51) fixed on the upper surface of the disc body (31);
the top frame (52) is arranged on the outer side of the top of the treatment tank (20), the lower surface of the top frame is fixedly connected with the connecting rod (51), and the top frame is driven by external force to vertically move;
the elastic piece (53) is sleeved outside the connecting rod (51), is arranged between the top wall of the processing tank (20) and the top frame and has vertical deformation capacity.
6. A water circulating device according to claim 1, characterized in that the water outlet (95) is arranged at the side wall of the middle part of the separation chamber (2).
7. The water circulating device according to claim 1 or 6, characterized in that a filter screen is arranged at the water outlet (95).
CN201920611392.3U 2019-04-29 2019-04-29 Circulating water device for multi-metal hazardous waste treatment Expired - Fee Related CN210030836U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920611392.3U CN210030836U (en) 2019-04-29 2019-04-29 Circulating water device for multi-metal hazardous waste treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920611392.3U CN210030836U (en) 2019-04-29 2019-04-29 Circulating water device for multi-metal hazardous waste treatment

Publications (1)

Publication Number Publication Date
CN210030836U true CN210030836U (en) 2020-02-07

Family

ID=69362920

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920611392.3U Expired - Fee Related CN210030836U (en) 2019-04-29 2019-04-29 Circulating water device for multi-metal hazardous waste treatment

Country Status (1)

Country Link
CN (1) CN210030836U (en)

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Granted publication date: 20200207

Termination date: 20210429