Non-ferrous metal solid hazardous waste material and flux mixed block making device

Abstract

The invention provides a non-ferrous metal solid hazardous waste material and flux mixed block making device, and relates to the field of metal solid hazardous waste treatment. The production device of the metal solid hazardous waste material and flux mixing block comprises a multi-stage stirring mechanism and a primary stirring mechanism for mixing wet aggregate particles and total amount of reagent powder, and the primary stirring mechanism comprises a material inlet and outlet, a liquid outlet, a water spraying part for flushing residual reagent powder and a stirring unit for stirring. According to the blocky object prepared by the non-ferrous metal solid hazardous waste material and flux mixed block making device, the foamed metal solid hazardous waste material and flux mixed block is fixed in shape and convenient to transport, aggregate and a reagent are uniformly mixed, and later steps are reduced; particularly, gaps are formed on the surface after foaming treatment to increase the contact area, and the specific surface area is also increased after the shape is fixed to facilitate reaction with other materials, so that the problem of low waste residue feeding treatment efficiency in the prior art is solved.

Description

A device for mixing and briquetting non-ferrous metal solid hazardous waste materials with flux Technical Field

[0001] This invention relates to the field of solid hazardous waste treatment, specifically to a mixture of metallic solid hazardous waste material and flux, and its production apparatus and method. Background Technology

[0002] The current method for processing non-ferrous metal solid hazardous waste materials in smelting furnaces is to add lumpy solid fuel, lumpy flux (such as quartz and limestone), and lumpy solid hazardous waste in batches in a certain proportion to the smelting furnace, and then carry out different stages of smelting reaction in the smelting furnace to produce non-ferrous metal melt and molten slag.

[0003] Because of the large volume of non-ferrous metal solid hazardous waste, it is not fully mixed with the lumpy reagents. At the same time, the large volume of non-ferrous metal solid hazardous waste has a small area for thermal contact, which leads to difficulties in smelting, increases the heat required, and ultimately results in low smelting efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a device for mixing and briquetting non-ferrous metal solid hazardous waste materials with flux, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a non-ferrous metal solid hazardous waste material mixing and fusing briquetting device, comprising a multi-stage stirring mechanism, a primary stirring mechanism for mixing moist aggregate particles with a total amount of reagent powder, the primary stirring mechanism including a material inlet and outlet, a liquid outlet, a water spray section for rinsing residual reagent powder, and a stirring unit for stirring, a secondary stirring mechanism including a separately provided material inlet and outlet, wherein the inlet is used to dispense the mixed liquid discharged from the dispersing liquid outlet and to dispense aggregate powder, a quantitative discharge unit provided at the material outlet, and a stirring unit for stirring, a final stirring mechanism for mixing the material discharged from the quantitative discharge unit with foaming material, the discharge end of the final stirring mechanism discharging the material into a mold, the final stirring mechanism including a stirring unit for stirring.

[0006] Preferably, the aggregate particles enter the primary mixing mechanism before the reagent powder and are moistened by the water spray section.

[0007] Preferably, the primary stirring mechanism and the secondary stirring mechanism are separately configured, with a solid transfer unit for transferring solid materials and a liquid transfer unit for transferring the mixed liquid formed by the impact of excess reagents provided between them.

[0008] Preferably, the primary mixing mechanism and the secondary mixing mechanism are combined, and the water spraying part is located at the secondary mixing mechanism. Aggregate particles, reagent powder, and aggregate powder are sequentially added into the secondary mixing mechanism.

[0009] Preferred method: raw material crushing

[0010] The reagent materials are crushed into powder, and the aggregates are crushed into both granules and powder.

[0011] dry mix,

[0012] The moistened aggregate particles are mixed with the overall reagent powder to make the reagent powder adhere to the aggregate particles.

[0013] The mixed aggregate particles are discharged from the mixing chamber, and water is used to flush the mixing chamber. The mixed liquid formed after flushing is collected.

[0014] wet mixing,

[0015] Aggregate powder is mixed with a liquid to form a slurry;

[0016] Mix the dry-mixed materials with the slurry until they do not separate into layers;

[0017] The wet mixture is discharged in fixed quantities;

[0018] Foaming treatment involves foaming a fixed quantity of discharged material.

[0019] Preferably, the initial mixing involves uniformly mixing the aggregate powder, reagent powder, and water through primary stirring.

[0020] Secondary mixing involves mixing aggregate particles with the primary mixing materials. After mixing is complete, the secondary mixture is discharged in fixed units.

[0021] Foaming treatment involves foaming a fixed quantity of discharged material.

[0022] The foaming process used is non-autoclaved foaming.

[0023] Mix the quantitatively discharged material with a specified proportion of foaming agent;

[0024] The mixed materials are transferred to the mold.

[0025] Preferably, the mass ratio of the aggregate powder, aggregate particles, reagent powder, and foaming agent is 16:14:6:1.

[0026] Preferably, the foaming process is autoclaving;

[0027] The material, measured in fixed units, is added into the mold and mixed with the foaming agent, and then sent to the autoclave for curing.

[0028] Preferably, the metallic solid hazardous waste material produced by the above method is mixed with flux in a block.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The non-ferrous metal solid hazardous waste material and flux mixing and briquetting device has a fixed shape after foaming, which is convenient for transportation. The aggregate and reagent are mixed evenly to reduce the number of subsequent steps. In particular, the foaming treatment creates voids on the surface, which increases the contact area. At the same time, the fixed shape also increases the specific surface area, which is convenient for reaction with other materials. This solves the problem of low waste disposal efficiency in the existing technology.

[0031] 2. The non-ferrous metal solid hazardous waste material mixing and frothing device, by setting a final stage stirring mechanism, can mix the material and foaming agent in the final stage stirring mechanism, which can control the mixing ratio and avoid the space occupied by placing the foaming agent in advance for mixing.

[0032] 3. In this non-ferrous metal solid hazardous waste material mixing and fluxing briquetting device, the aggregate particles enter the primary mixing mechanism before the reagent powder and are moistened by the water spray section. This setting can reduce the pre-wetting process of the aggregate particles. The aggregate particles are placed inside the primary mixing mechanism for wetting. After wetting, the moisture content of the aggregate is basically fixed, which does not cause water to be drawn out, is easy to mix, does not crack, and has stable strength.

[0033] 4. The non-ferrous metal solid hazardous waste material mixing and briquetting device has a primary stirring mechanism and a secondary stirring mechanism set separately. Between the two, there is a solid transfer unit for transferring solid materials and a liquid transfer unit for transferring the mixed liquid formed by the impact of excess reagent. This allows the device to be installed in a dispersed manner for easy installation.

[0034] 5. The non-ferrous metal solid hazardous waste material mixing and briquetting device is equipped with a water spray section for rinsing the remaining reagent powder and collecting the mixed liquid formed after rinsing. The function of this section is to completely discharge the reagent powder from the mixing chamber and avoid the reduction of the ratio due to residue. Attached Figure Description

[0035] Figure 1 is a schematic diagram of the structure of the present invention;

[0036] Figure 2 is a schematic diagram of the structure of the present invention;

[0037] Figure 3 is a schematic diagram of the structure of the present invention;

[0038] Figure 4 is a schematic diagram of the structure of the present invention;

[0039] Figure 5 is a schematic diagram of the structure of the present invention;

[0040] Figure 6 is a schematic diagram of the structure of the present invention;

[0041] Figure 7 is a schematic diagram of the structure of the present invention.

[0042] In the diagram: 1. Primary mixing mechanism; 102. Material inlet and outlet; 103. Liquid outlet; 101. Water spray unit; 2. Secondary mixing mechanism; 203. Quantitative discharge unit; 3. Final mixing mechanism; 401. Solid transfer unit; 402. Liquid transfer unit. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0044] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0045] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0047] As shown in Figures 1-7, a non-ferrous metal solid hazardous waste material mixing and briquetting device includes a multi-stage stirring mechanism, a primary stirring mechanism 1 for mixing moist aggregate particles with a total amount of reagent powder, a material inlet / outlet 102, a liquid outlet 103, a water spray section 101 for rinsing residual reagent powder, and a stirring unit for stirring. The primary stirring mechanism 1 can be a cement mixing hopper, modified by adding a ring-shaped outward drainage channel at the tail end, and a converging ring rotating relative to the cement mixing hopper on the outer ring of the channel. This modification is used to collect liquid. Water is sprayed inward by installing an adjustable nozzle at the inlet of the cement mixing hopper, which effectively controls the water volume. The stirring unit is designed with a multi-blade structure to improve stirring efficiency and prevent material accumulation or jamming during stirring, thereby improving overall utilization. This device has strong adaptability in actual operation, and the stirring speed and water spray intensity can be adjusted according to different material characteristics to meet diverse production needs.

[0048] The secondary mixing mechanism 2 includes a separately configured material inlet and outlet. The inlet is used to add the mixed liquid discharged from the dispersion outlet 103 and the aggregate powder, while the outlet is used to discharge the mixture after secondary mixing. The design of the secondary mixing mechanism 2 focuses on improving mixing uniformity. This mechanism is equipped with an adjustable speed drive, which can flexibly adjust the mixing intensity according to actual needs, ensuring that materials with different properties achieve ideal mixing results. Furthermore, for easy cleaning and maintenance, the inner wall of the secondary mixing mechanism 2 is treated with a smooth coating to reduce material residue and improve the service life and operating efficiency of the equipment.

[0049] A metering discharge unit 203 and a mixing unit are installed at the material outlet. In this embodiment, the metering discharge unit 203 uses a metering pump and works in conjunction with a twin-screw extruder. The twin-screw extruder extracts the material, and the metering pump measures the amount discharged. The metering discharge unit 203 can also be configured as a common grooved rotary device. High-pressure gas is introduced into the secondary mixing mechanism 2 to facilitate material discharge. Since the groove has a constant volume, a metered discharge can also be achieved. The material discharged from the metering discharge unit 203 is mixed with the foaming material in a final mixing mechanism 3. The final mixing mechanism 3 works similarly to the secondary mixing mechanism 2. The function of the final mixing mechanism 3 is to mix the foaming agent. By measuring the amount of material before mixing, the mixing ratio can be controlled, and the space occupied by pre-mixing the foaming agent can be avoided. The discharge end of the final mixing mechanism 3 discharges the material into the mold. The final mixing mechanism 3 includes a mixing unit for stirring. Foaming treatment is then performed on the metered discharged material.

[0050] The foaming process used is autoclaving;

[0051] The material, measured in fixed units, is added into the mold and mixed with the foaming agent, and then sent to the autoclave for curing.

[0052] Although autoclaving technology has higher equipment costs, its mechanical foaming method minimizes the impact of foaming agents on subsequent smelting. Autoclaving uses physical processes under high pressure to create a uniform porous structure within the material, thereby improving product performance. This method not only effectively reduces the amount of chemical foaming agents used but also ensures a more stable and controllable foaming process. Furthermore, because mechanical foaming avoids chemical residues, the purity of the final product is improved, which is crucial for subsequent smelting processes. Simultaneously, this method significantly improves the density and strength properties of the material, providing a reliable guarantee for producing high-quality composite blocks.

[0053] Aggregate particles enter the primary mixing mechanism 1 before the reagent powder and are moistened by the water spray section 101. This setting can reduce the pre-wetting process of aggregate particles. The aggregate particles are placed inside the primary mixing mechanism 1 for wetting. After wetting, the moisture content of the aggregate is basically fixed, which prevents water from accumulating, makes it easy to mix, prevents cracking, and stabilizes the strength.

[0054] A method for producing non-ferrous metal solid hazardous waste materials by mixing and fusing with flux, wherein the raw materials are crushed,

[0055] The reagent materials are crushed into powder, and the aggregates are crushed into both granules and powder.

[0056] The reagent materials are limestone, quartz and other slag or other auxiliary materials, which are crushed into powder by a grinding mechanism. The aggregate is metallic solid hazardous waste material, which is crushed into powder by a grinding mechanism. Then, part of the powder is sintered into granular aggregate. Alternatively, part of the aggregate can be ground into powder, and the other part of the aggregate can be crushed into granules by a crushing mechanism.

[0057] dry mix,

[0058] The moistened aggregate particles are mixed with the overall reagent powder to make the reagent powder adhere to the aggregate particles.

[0059] The mixed aggregate particles are discharged from the mixing chamber, and the mixing chamber is flushed with water. The mixed liquid formed after flushing is collected. The purpose of this part is to completely discharge the reagent powder from the mixing chamber to avoid the reduction of the ratio due to residue.

[0060] wet mixing,

[0061] Aggregate powder is mixed with a liquid to form a slurry;

[0062] Mix the dry-mixed materials with the slurry until they do not separate into layers;

[0063] The wet mixture is discharged in fixed quantities;

[0064] In Example 2, the primary stirring mechanism 1 and the secondary stirring mechanism 2 are set separately. A solid transfer unit 401 for transferring solid materials and a liquid transfer unit 402 for transferring the mixed liquid formed by the impact of excess reagent are set between the two. This makes the installation position of the device dispersed and easy to install. The solid transfer unit 401 includes a trolley, and the liquid transfer unit 402 can be a liquid storage tank. The liquid is pumped out and into the liquid storage tank by a pump.

[0065] The primary mixing mechanism 1 and the secondary mixing mechanism 2 are combined. The water spraying unit 101 is set at the secondary mixing mechanism 2. A water spraying ring is set in the secondary mixing mechanism 2 to spray water. Aggregate particles, reagent powder and aggregate powder are sequentially added into the secondary mixing mechanism 2.

[0066] A production method for mixing non-ferrous metal solid hazardous waste materials with flux to form briquettes, wherein the initial mixing involves mixing aggregate powder, reagent powder and water evenly by primary stirring.

[0067] Secondary mixing involves mixing aggregate particles with the primary mixing materials. After mixing is complete, the secondary mixture is discharged in fixed units.

[0068] Foaming treatment involves foaming a fixed quantity of discharged material.

[0069] The foaming process uses non-autoclaved foaming.

[0070] Mix the quantitatively discharged material with a specified proportion of foaming agent;

[0071] The mixed materials are transferred to the mold.

[0072] The non-autoclaved foaming technology utilizes a foaming agent to generate bubbles. This method offers lower manufacturing costs, but careful selection of the foaming agent is crucial. Generally, a foaming agent that has no impact on subsequent melting processes is chosen. Chemically stable and easily decomposed materials are selected to ensure that no impurities or harmful gases are introduced during subsequent melting. Simultaneously, the amount of foaming agent used needs strict control to guarantee uniform bubble distribution and the overall performance of the material. To further optimize the foaming effect, the stirring speed and time can be adjusted appropriately during mixing to ensure thorough integration of the foaming agent with the material, thereby improving the structural strength and stability of the final product.

[0073] The mass ratio of aggregate powder, aggregate granules, reagent powder, and foaming agent is 16:14:6:1.

[0074] The determination of this ratio involves two steps. The first step is the ratio of aggregate to reagent. Aggregate powder and aggregate powder are treated as a whole and the proportion of aggregate to be added to the smelting process is determined according to the conventional ratio. The second step is the ratio of aggregate to fluid. During the pelleting process, the conventional ratio is followed. At this time, aggregate powder and reagent powder are treated as a whole and compared with aggregate particles to determine the ratio based on the benchmark ratio.

[0075] A metal solid hazardous waste material and flux mixture block is characterized by foaming the mixed material to form a solid with a fixed shape. The foamed metal solid hazardous waste material and flux mixture block has a fixed shape, which is convenient for transportation. The aggregate and reagent are mixed evenly, which reduces the number of subsequent steps. In particular, the foaming process creates voids on the surface, which increases the contact area. At the same time, the fixed shape also increases the specific surface area, which facilitates the reaction with other materials.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0077] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0078] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production apparatus for a mixture of metallic solid hazardous waste material and flux, comprising a multi-stage stirring mechanism, characterized in that: A primary mixing mechanism (1) for mixing moist aggregate particles with total amount of reagent powder, the primary mixing mechanism (1) includes a material inlet and outlet (102), a liquid outlet (103), a water spray section (101) for rinsing the remaining reagent powder, and a mixing unit for mixing; a secondary mixing mechanism (2) for mixing aggregate powder with the material after primary mixing, the secondary mixing mechanism (2) includes a separately provided material inlet and outlet, wherein the inlet is used to dispense the mixed liquid discharged from the dispersion liquid outlet (103) and to dispense aggregate powder, a quantitative discharge unit (203) is provided at the material outlet, and a mixing unit for mixing; a final mixing mechanism (3) for mixing the material discharged from the quantitative discharge unit (203) with foaming material, the discharge end of the final mixing mechanism (3) discharges the material into the mold, the final mixing mechanism (3) includes a mixing unit for mixing.

2. The production apparatus for a mixture of metallic solid hazardous waste material and flux as described in claim 1, characterized in that: The aggregate particles enter the primary mixing mechanism (1) before the reagent powder and are moistened by the water spray section (101).

3. The production apparatus for a mixture of metallic solid hazardous waste material and flux as described in claim 2, characterized in that: The primary stirring mechanism (1) and the secondary stirring mechanism (2) are set separately, and a solid transfer unit (401) for transferring solid materials and a liquid transfer unit (402) for transferring the mixed liquid formed by the impact of excess reagent are set between them.

4. The apparatus for mixing and briquetting non-ferrous metal solid hazardous waste materials with flux according to claim 2, characterized in that: The primary mixing mechanism (1) and the secondary mixing mechanism (2) are combined. The water spraying part (101) is set at the secondary mixing mechanism (2). Aggregate particles, reagent powder and aggregate powder are sequentially fed into the secondary mixing mechanism (2).

5. The apparatus for mixing and briquetting non-ferrous metal solid hazardous waste materials with flux according to claim 2, characterized in that: The production method includes: raw material crushing, crushing reagent materials into powder, and crushing aggregates into both granules and powder; dry mixing, mixing moist aggregate granules with the overall reagent powder to make the reagent powder and aggregate granules adhere together; discharging the mixed aggregate granules from the mixing chamber and flushing the mixing chamber with water, collecting the mixed liquid formed after flushing; wet mixing, mixing aggregate powder with mixed liquid to form a slurry; mixing the dry-mixed materials with the slurry until no stratification; and discharging the wet mixture in fixed units. Foaming treatment involves foaming a fixed quantity of discharged material.

6. The apparatus for mixing and briquetting non-ferrous metal solid hazardous waste materials with flux according to claim 4, characterized in that: Primary mixing involves uniformly mixing aggregate powder, reagent powder, and water. Secondary mixing involves mixing aggregate particles with the primary mixture. After mixing, a fixed unit of secondary mixture is discharged. Foaming treatment involves foaming the discharged material.

7. A device for mixing and briquetting non-ferrous metal solid hazardous waste materials with flux according to claim 5 or 6, characterized in that: The production method includes: the foaming treatment adopts non-autoclaved foaming; mixing a quantitatively discharged material with a specified proportion of foaming agent; and transferring the mixed material to a mold.

8. The apparatus for mixing and briquetting non-ferrous metal solid hazardous waste materials with flux according to claim 7, characterized in that: The production method includes: the mass ratio of the aggregate powder, aggregate granules, reagent powder and foaming agent is 16:14:6:

1.

9. The apparatus for mixing and briquetting non-ferrous metal solid hazardous waste materials with flux according to claim 7, characterized in that: The production method includes: the foaming treatment is carried out by autoclaving; materials measured in fixed units are put into a mold and mixed with a foaming agent, and then sent to an autoclaving curing device for curing.

10. The apparatus for mixing and briquetting non-ferrous metal solid hazardous waste materials with flux according to claim 6, characterized in that: Metal solid hazardous waste material mixed with flux produced by the method described above.

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